# Chain Manager screen lock up on Vangelis (Resolved)

**URL:** <https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100>\
**Category:** Using Zynthian\
**Created:** [May 5, 2026, 8:49am UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100 "2026-05-05T08:49:09Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![smespresati](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/s/9d8465/32.png) [@smespresati](https://discourse.zynthian.org/u/smespresati)\
**Post date:** [April 19, 2026, 3:04pm UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/1 "2026-04-19T15:04:41Z")

</div>

Hi guys,

I’ve been fighting making my custom build to work. My hardware is: pi 5, arturia minifuse 2 otg (usb), display Minix SF10T (hdmi+usb). It’s a touch only setup. Zynthian boot from nvme and I’m using a 100 w power by Iniu.

This setup works pretty well with Oram stable, then I updated to Vangelis.

I can easily setup touch interface in Vangelis, but the gui freezes after a while and I’ve discovered how to reproduce the issue: unhide v5 keypad touch widget, load a snapshot, then hide v5 touch widget at this point mixer controls work, unhide v5 touch widget and then widget buttons are unresponsive, the mixer controls work until main is selected, then mixer is also unresponsive.

I think others zynthianers with custom builds have reported something similar.

I did all these testing with Gemini AI and follow the findings.

What’s your opinion about Gemini findings?

* * *

**Report: RPi 5 System Deadlock on Vangelis Branch (I/O & Interrupt Saturation)**

#### **1. System Environment**

- **Platform:** Raspberry Pi 5 (RP1 Controller).

- **Zynthian Version:** Vangelis (Branch).

- **Hardware Setup:**

- **Initial Comparison:** System was stable under _Oram_ (Stable). Instability/Deadlock triggers immediately after migration to _Vangelis_.

#### **2. Methodology & Findings**

- **Finding 1: USB Bus Saturation.** Monitoring interrupts via `cat /proc/interrupts | grep xhci` revealed a severe imbalance in IRQ distribution across the RP1 buses.

- **Finding 2: Snapshot-Triggered Deadlock.** Loading a Snapshot triggers a complete system freeze. The failure is sequential and reproducible:

- **Finding 3: Resource Contention (HTOP Analysis).** Analysis of `htop` during the hang shows a massive number of `python3` (`zynthian_main.py`) child processes in **`S` (Interruptible Sleep)** or **`D` (Uninterruptible I/O)** state.

#### **3. Summary of Hypothesis**

The instability in _Vangelis_ on the RPi 5 appears to be a **synchronous-to-asynchronous architecture conflict**. The Snapshot process and Mixer view queries are likely blocking the main event loop while waiting for audio engine state updates that are delayed by the RP1 controller’s interrupt handling. Unlike _Oram_, which seems more tolerant of these latency spikes, _Vangelis_ enters a deadlock state (likely a mutex lock or thread hang) when audio state queries are concurrent with high-traffic HID/Audio USB interrupts.

#### **4. Recommendations for Developers**

1. **Audit Mixer Query Implementation:** Investigate if the GUI thread is performing synchronous blocking calls to audio engine statuses. Implementing asynchronous queries (using `asyncio` or worker threads) may prevent the GUI from deadlocking.

2. **Interrupt Handling on RP1:** Review IRQ affinity/priority handling in the _Vangelis_ kernel for the RP1 controller, as the system struggles to balance HID and Audio streams compared to previous generations.

3. **V5 Driver Resilience:** Determine why physical input drivers (V5 buttons) cease operation before the GUI freeze, as this suggests the event-polling loop is being starved by the Mixer’s blocking calls.

* * *

Best regards.

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<div class="post-metadata">

**Author:** ![Aethermind](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/aethermind/32/9208_2.png) [@Aethermind](https://discourse.zynthian.org/u/Aethermind)\
**Post date:** [April 19, 2026, 4:26pm UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/2 "2026-04-19T16:26:53Z")

</div>

> [@smespresati](#):
>
> I think others zynthianers with custom builds have reported something similar.

Hi @smespresati,

As reported elsewhere, I also experienced GUI locks on Vangelis, on two touch and HDMI custom builds working nominally with Oram.

In my case, the system freezes as soon as I engage the chain manager view, letting me speculate - without being able to audit further the problem - that the issue might arise from the GUI management of the chain manager routines call, or from something internal to the chain manager code itself that reacts non-functionally to my HW setup.

Regards 🙂

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**Author:** ![riban](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/riban/32/2331_2.png) [@riban](https://discourse.zynthian.org/u/riban)\
**Post date:** [April 19, 2026, 4:48pm UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/3 "2026-04-19T16:48:13Z")

</div>

I hope your problems are all cauesd by the same problem that we are trying to resolve - chain manager view does not close and overlays other screens, so the screens are working but you can’t see them. You can often use the back button in this scenario so maybe the issue is different. Anyone having problems should raise a ticket in the issue tracker, ideally using the webconf Report Issue button and attach logs. UI problems have oftern been caused by an exception with an associated lot entry.

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<div class="post-metadata">

**Author:** ![smespresati](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/s/9d8465/32.png) [@smespresati](https://discourse.zynthian.org/u/smespresati)\
**Post date:** [April 19, 2026, 6:54pm UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/4 "2026-04-19T18:54:07Z")

</div>

Thanks @riban,

As it was a new custom build I thought it was my fault setting up my unofficial hardware.

I captured the log just when failing. I hope this will help you to manage the issue.

BTW, Vangelis is a nice work.

Best regards.

(venv) root@zynthian:/zynthian/zynthian-my-data/scripts# journalctl -u zynthian -n 200 --no-pager  
Apr 19 19:42:19 zynthian startx[52699]: Hardware Model: Raspberry Pi 5 Model B Rev 1.1  
Apr 19 19:42:19 zynthian startx[52699]: ----------------------------------------------  
Apr 19 19:42:19 zynthian startx[52728]: Generating splash images for display resolution 1920 x 1280…  
Apr 19 19:42:19 zynthian startx[52748]: /zynthian/config/img/fb\_zynthian\_boot.jpg is a 1920x1280 JPEG image, color space Grayscale, 1 comp, Huffman coding.  
Apr 19 19:42:19 zynthian startx[52748]: Zooming image by 100%…done  
Apr 19 19:42:19 zynthian startx[52748]: Merging…didn’t find evidence of prior run.  
Apr 19 19:42:19 zynthian startx[52748]: done  
Apr 19 19:42:19 zynthian startx[52748]: Building XImage…done  
Apr 19 19:42:20 zynthian startx[52749]: Loaded libzynaudioplayer using libsndfile-1.2.0  
Apr 19 19:42:21 zynthian startx[52749]: Started zynmixer\_chan  
Apr 19 19:42:21 zynthian startx[52749]: Started zynmixer\_bus  
Apr 19 19:42:21 zynthian startx[52749]: Started libzynseq  
Apr 19 19:42:21 zynthian startx[52749]: Started libzynsmf  
Apr 19 19:42:25 zynthian startx[52749]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 1, delay: 930.0us  
Apr 19 19:42:25 zynthian startx[52749]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 2, delay: 37926.0us  
Apr 19 19:42:56 zynthian startx[52749]: WARNING:zynthian\_gui.busy\_thread\_task: Clients have been busy for longer than 30s: {‘add\_processor’, ‘load snapshot’, ‘set\_chain\_state’, ‘ui startup’}  
Apr 19 19:43:30 zynthian startx[52749]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 3, delay: 2893.0us  
Apr 19 19:43:30 zynthian startx[52749]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 4, delay: 591.0us  
Apr 19 19:43:30 zynthian startx[52749]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 5, delay: 1102.0us  
Apr 19 19:43:30 zynthian startx[52749]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 6, delay: 1244.0us  
Apr 19 19:43:30 zynthian startx[52749]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 7, delay: 327.0us  
Apr 19 19:43:31 zynthian startx[52749]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 8, delay: 788.0us  
Apr 19 19:43:32 zynthian startx[52749]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 9, delay: 97565.0us  
Apr 19 19:43:56 zynthian systemd[1]: Stopping zynthian.service - Zynthian User Interface…  
Apr 19 19:44:04 zynthian startx[52749]: ERROR:zynthian\_chain\_manager.remove\_processor: Chain None doesn’t exist!  
Apr 19 19:44:04 zynthian startx[52749]: zynmixer ended  
Apr 19 19:44:04 zynthian startx[52749]: free(): invalid pointer  
Apr 19 19:44:04 zynthian startx[52699]: ./zynthian.sh: line 316: 52749 Aborted ./zynthian\_main.py  
Apr 19 19:44:04 zynthian startx[52699]: \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
Apr 19 19:44:04 zynthian startx[52699]: EXIT STATUS =\> 134  
Apr 19 19:44:04 zynthian startx[52699]: \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
Apr 19 19:44:04 zynthian startx[52664]: xinit: connection to X server lost  
Apr 19 19:44:04 zynthian startx[52664]:  
Apr 19 19:44:04 zynthian startx[52664]: waiting for X server to shut down  
Apr 19 19:44:04 zynthian startx[52665]: (II) Server terminated successfully (0). Closing log file.  
Apr 19 19:44:05 zynthian startx[52664]: xinit: unexpected signal 15  
Apr 19 19:44:05 zynthian systemd[1]: zynthian.service: Main process exited, code=exited, status=1/FAILURE  
Apr 19 19:44:05 zynthian systemd[1]: zynthian.service: Failed with result ‘exit-code’.  
Apr 19 19:44:05 zynthian systemd[1]: Stopped zynthian.service - Zynthian User Interface.  
Apr 19 19:44:05 zynthian systemd[1]: zynthian.service: Consumed 2min 9ms CPU time.  
Apr 19 19:44:05 zynthian systemd[1]: Started zynthian.service - Zynthian User Interface.  
Apr 19 19:44:05 zynthian startx[53638]: [X.Org](http://X.Org) X Server 1.21.1.7  
Apr 19 19:44:05 zynthian startx[53638]: X Protocol Version 11, Revision 0  
Apr 19 19:44:05 zynthian startx[53638]: Current Operating System: Linux zynthian 6.12.47+rpt-rpi-2712 #1 SMP PREEMPT Debian 1:6.12.47-1+rpt1~bookworm (2025-09-16) aarch64  
Apr 19 19:44:05 zynthian startx[53638]: Kernel command line: reboot=w coherent\_pool=1M 8250.nr\_uarts=1 pci=pcie\_bus\_safe cgroup\_disable=memory numa\_policy=interleave nvme.max\_host\_mem\_size\_mb=0 numa=fake=8 system\_heap.max\_order=0 iommu\_dma\_numa\_policy=interleave smsc95xx.macaddr=88:A2:9E:0A:F9:9F vc\_mem.mem\_base=0x3fc00000 vc\_mem.mem\_size=0x40000000 root=PARTUUID=e249d476-02 rootfstype=ext4 fsck.repair=yes rootwait console=tty1 logo.nologo modules-load=dwc2,libcomposite  
Apr 19 19:44:05 zynthian startx[53638]: xorg-server 2:21.1.7-3+rpt3+deb12u11 ( [Debian -- User Support](https://www.debian.org/support) )  
Apr 19 19:44:05 zynthian startx[53638]: Current version of pixman: 0.44.0  
Apr 19 19:44:05 zynthian startx[53638]: Before reporting problems, check [http://wiki.x.org](http://wiki.x.org)  
Apr 19 19:44:05 zynthian startx[53638]: to make sure that you have the latest version.  
Apr 19 19:44:05 zynthian startx[53638]: Markers: (–) probed, (**) from config file, (==) default setting,  
Apr 19 19:44:05 zynthian startx[53638]: (++) from command line, (!!) notice, (II) informational,  
Apr 19 19:44:05 zynthian startx[53638]: (WW) warning, (EE) error, (NI) not implemented, (??) unknown.  
Apr 19 19:44:05 zynthian startx[53638]: (==) Log file: “/var/log/Xorg.0.log”, Time: Sun Apr 19 19:44:05 2026  
Apr 19 19:44:05 zynthian startx[53638]: (==) Using config directory: “/etc/X11/xorg.conf.d”  
Apr 19 19:44:05 zynthian startx[53638]: (==) Using system config directory “/usr/share/X11/xorg.conf.d”  
Apr 19 19:44:06 zynthian startx[53650]: ----------------------------------------------  
Apr 19 19:44:06 zynthian startx[53650]: Linux Version: bookworm  
Apr 19 19:44:06 zynthian startx[53650]: Kernel Version: 6.12.47+rpt-rpi-2712  
Apr 19 19:44:06 zynthian startx[53650]: ZynthianOS Version: 2601  
Apr 19 19:44:06 zynthian startx[53650]: Virtualization: none  
Apr 19 19:44:06 zynthian startx[53650]: Hardware Architecture: aarch64  
Apr 19 19:44:06 zynthian startx[53650]: Hardware Model: Raspberry Pi 5 Model B Rev 1.1  
Apr 19 19:44:06 zynthian startx[53650]: ----------------------------------------------  
Apr 19 19:44:06 zynthian startx[53679]: /zynthian/config/img/fb\_zynthian\_boot.jpg is a 1920x1280 JPEG image, color space Grayscale, 1 comp, Huffman coding.  
Apr 19 19:44:06 zynthian startx[53679]: Zooming image by 100%…done  
Apr 19 19:44:06 zynthian startx[53679]: Merging…didn’t find evidence of prior run.  
Apr 19 19:44:06 zynthian startx[53679]: done  
Apr 19 19:44:06 zynthian startx[53679]: Building XImage…done  
Apr 19 19:44:07 zynthian startx[53681]: Loaded libzynaudioplayer using libsndfile-1.2.0  
Apr 19 19:44:07 zynthian startx[53681]: Started zynmixer\_chan  
Apr 19 19:44:07 zynthian startx[53681]: Started zynmixer\_bus  
Apr 19 19:44:07 zynthian startx[53681]: Started libzynseq  
Apr 19 19:44:07 zynthian startx[53681]: Started libzynsmf  
Apr 19 19:44:07 zynthian startx[53681]: ERROR:zynthian\_state\_manager.save\_snapshot: Traceback (most recent call last):  
Apr 19 19:44:07 zynthian startx[53681]: File “/zynthian/zynthian-ui/zyngine/zynthian\_state\_manager.py”, line 1065, in save\_snapshot  
Apr 19 19:44:07 zynthian startx[53681]: state = self.get\_state()  
Apr 19 19:44:07 zynthian startx[53681]: ^^^^^^^^^^^^^^^^  
Apr 19 19:44:07 zynthian startx[53681]: File “/zynthian/zynthian-ui/zyngine/zynthian\_state\_manager.py”, line 966, in get\_state  
Apr 19 19:44:07 zynthian startx[53681]: self.save\_zs3(“zs3-0”, “Last state”)  
Apr 19 19:44:07 zynthian startx[53681]: File “/zynthian/zynthian-ui/zyngine/zynthian\_state\_manager.py”, line 1616, in save\_zs3  
Apr 19 19:44:07 zynthian startx[53681]: “active\_chain”: self.chain\_manager.active\_chain.chain\_id,  
Apr 19 19:44:07 zynthian startx[53681]: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
Apr 19 19:44:07 zynthian startx[53681]: AttributeError: ‘NoneType’ object has no attribute ‘chain\_id’  
Apr 19 19:44:07 zynthian startx[53681]: Traceback (most recent call last):  
Apr 19 19:44:07 zynthian startx[53681]: File “/zynthian/zynthian-ui/zyngine/zynthian\_state\_manager.py”, line 1065, in save\_snapshot  
Apr 19 19:44:07 zynthian startx[53681]: state = self.get\_state()  
Apr 19 19:44:07 zynthian startx[53681]: ^^^^^^^^^^^^^^^^  
Apr 19 19:44:07 zynthian startx[53681]: File “/zynthian/zynthian-ui/zyngine/zynthian\_state\_manager.py”, line 966, in get\_state  
Apr 19 19:44:07 zynthian startx[53681]: self.save\_zs3(“zs3-0”, “Last state”)  
Apr 19 19:44:07 zynthian startx[53681]: File “/zynthian/zynthian-ui/zyngine/zynthian\_state\_manager.py”, line 1616, in save\_zs3  
Apr 19 19:44:07 zynthian startx[53681]: “active\_chain”: self.chain\_manager.active\_chain.chain\_id,  
Apr 19 19:44:07 zynthian startx[53681]: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
Apr 19 19:44:07 zynthian startx[53681]: AttributeError: ‘NoneType’ object has no attribute ‘chain\_id’  
Apr 19 19:44:07 zynthian startx[53681]: ERROR:zynthian\_state\_manager.save\_snapshot: Can’t save snapshot file ‘/zynthian/zynthian-my-data/snapshots/last\_state.zss’: ‘NoneType’ object has no attribute ‘chain\_id’  
Apr 19 19:44:10 zynthian startx[53681]: ERROR:zynthian\_state\_manager.load\_snapshot: Invalid snapshot: ‘zynthian\_state\_manager’ object has no attribute ‘main\_mixbus\_proc’  
Apr 19 19:44:10 zynthian startx[53681]: Traceback (most recent call last):  
Apr 19 19:44:10 zynthian startx[53681]: File “/zynthian/zynthian-ui/zyngine/zynthian\_state\_manager.py”, line 1120, in load\_snapshot  
Apr 19 19:44:10 zynthian startx[53681]: self.mute(True)  
Apr 19 19:44:10 zynthian startx[53681]: File “/zynthian/zynthian-ui/zyngine/zynthian\_state\_manager.py”, line 353, in mute  
Apr 19 19:44:10 zynthian startx[53681]: self.main\_mixbus\_proc.controllers\_dict[“mute”].set\_value(mute)  
Apr 19 19:44:10 zynthian startx[53681]: ^^^^^^^^^^^^^^^^^^^^^  
Apr 19 19:44:10 zynthian startx[53681]: AttributeError: ‘zynthian\_state\_manager’ object has no attribute ‘main\_mixbus\_proc’  
Apr 19 19:44:12 zynthian startx[53681]: Traceback (most recent call last):  
Apr 19 19:44:12 zynthian startx[53681]: File “/zynthian/zynthian-ui/./zynthian\_main.py”, line 47, in  
Apr 19 19:44:12 zynthian startx[53681]: zynthian\_gui\_config.zyngui = zyngui = zynthian\_gui()  
Apr 19 19:44:12 zynthian startx[53681]: ^^^^^^^^^^^^^^  
Apr 19 19:44:12 zynthian startx[53681]: File “/zynthian/zynthian-ui/zyngui/zynthian\_gui.py”, line 166, in init**  
Apr 19 19:44:12 zynthian startx[53681]: self.state\_manager = zynthian\_state\_manager()  
Apr 19 19:44:12 zynthian startx[53681]: ^^^^^^^^^^^^^^^^^^^^^^^^  
Apr 19 19:44:12 zynthian startx[53681]: File “/zynthian/zynthian-ui/zyngine/zynthian\_state\_manager.py”, line 191, in **init**  
Apr 19 19:44:12 zynthian startx[53681]: self.start()  
Apr 19 19:44:12 zynthian startx[53681]: File “/zynthian/zynthian-ui/zyngine/zynthian\_state\_manager.py”, line 232, in start  
Apr 19 19:44:12 zynthian startx[53681]: self.default\_vncserver()  
Apr 19 19:44:12 zynthian startx[53681]: File “/zynthian/zynthian-ui/zyngine/zynthian\_state\_manager.py”, line 2428, in default\_vncserver  
Apr 19 19:44:12 zynthian startx[53681]: self.stop\_vncserver(False)  
Apr 19 19:44:12 zynthian startx[53681]: File “/zynthian/zynthian-ui/zyngine/zynthian\_state\_manager.py”, line 2413, in stop\_vncserver  
Apr 19 19:44:12 zynthian startx[53681]: self.load\_last\_state\_snapshot()  
Apr 19 19:44:12 zynthian startx[53681]: File “/zynthian/zynthian-ui/zyngine/zynthian\_state\_manager.py”, line 1320, in load\_last\_state\_snapshot  
Apr 19 19:44:12 zynthian startx[53681]: return self.load\_snapshot(self.last\_state\_snapshot\_fpath)  
Apr 19 19:44:12 zynthian startx[53681]: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
Apr 19 19:44:12 zynthian startx[53681]: File “/zynthian/zynthian-ui/zyngine/zynthian\_state\_manager.py”, line 1247, in load\_snapshot  
Apr 19 19:44:12 zynthian startx[53681]: self.mute(mute, 0)  
Apr 19 19:44:12 zynthian startx[53681]: File “/zynthian/zynthian-ui/zyngine/zynthian\_state\_manager.py”, line 353, in mute  
Apr 19 19:44:12 zynthian startx[53681]: self.main\_mixbus\_proc.controllers\_dict[“mute”].set\_value(mute)  
Apr 19 19:44:12 zynthian startx[53681]: ^^^^^^^^^^^^^^^^^^^^^  
Apr 19 19:44:12 zynthian startx[53681]: AttributeError: ‘zynthian\_state\_manager’ object has no attribute ‘main\_mixbus\_proc’  
Apr 19 19:44:12 zynthian startx[53681]: zynmixer ended  
Apr 19 19:44:12 zynthian startx[53681]: zynmixer ended  
Apr 19 19:44:12 zynthian startx[53681]: libzynaudioplayer exiting  
Apr 19 19:44:12 zynthian startx[53650]: \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
Apr 19 19:44:12 zynthian startx[53650]: EXIT STATUS =\> 1  
Apr 19 19:44:12 zynthian startx[53650]: \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
Apr 19 19:44:12 zynthian startx[53737]: /zynthian/config/img/fb\_zynthian\_message.jpg is a 1920x1280 JPEG image, color space YCbCr, 3 comps, Huffman coding.  
Apr 19 19:44:12 zynthian startx[53737]: Zooming image by 100%…done  
Apr 19 19:44:12 zynthian startx[53737]: Merging…done  
Apr 19 19:44:12 zynthian startx[53737]: Building XImage…done  
Apr 19 19:44:23 zynthian startx[53742]: Loaded libzynaudioplayer using libsndfile-1.2.0  
Apr 19 19:44:24 zynthian startx[53742]: Started zynmixer\_chan  
Apr 19 19:44:24 zynthian startx[53742]: Started zynmixer\_bus  
Apr 19 19:44:24 zynthian startx[53742]: Started libzynseq  
Apr 19 19:44:24 zynthian startx[53742]: Started libzynsmf  
Apr 19 19:45:47 zynthian systemd[1]: Stopping zynthian.service - Zynthian User Interface…  
Apr 19 19:45:48 zynthian startx[53742]: ERROR:zynthian\_chain\_manager.remove\_processor: Chain None doesn’t exist!  
Apr 19 19:45:48 zynthian startx[53742]: zynmixer ended  
Apr 19 19:45:49 zynthian startx[53742]: zynmixer ended  
Apr 19 19:45:49 zynthian startx[53742]: libzynaudioplayer exiting  
Apr 19 19:45:49 zynthian startx[53650]: \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
Apr 19 19:45:49 zynthian startx[53650]: EXIT STATUS =\> 101  
Apr 19 19:45:49 zynthian startx[53650]: \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
Apr 19 19:45:49 zynthian startx[53637]: xinit: connection to X server lost  
Apr 19 19:45:49 zynthian startx[53637]:  
Apr 19 19:45:49 zynthian startx[53637]: waiting for X server to shut down  
Apr 19 19:45:49 zynthian startx[53638]: (II) Server terminated successfully (0). Closing log file.  
Apr 19 19:45:50 zynthian startx[53637]: xinit: unexpected signal 15  
Apr 19 19:45:50 zynthian systemd[1]: zynthian.service: Main process exited, code=exited, status=1/FAILURE  
Apr 19 19:45:50 zynthian systemd[1]: zynthian.service: Failed with result ‘exit-code’.  
Apr 19 19:45:50 zynthian systemd[1]: Stopped zynthian.service - Zynthian User Interface.  
Apr 19 19:45:50 zynthian systemd[1]: zynthian.service: Consumed 9.171s CPU time.  
Apr 19 19:45:50 zynthian systemd[1]: Started zynthian.service - Zynthian User Interface.  
Apr 19 19:45:50 zynthian startx[54042]: [X.Org](http://X.Org) X Server 1.21.1.7  
Apr 19 19:45:50 zynthian startx[54042]: X Protocol Version 11, Revision 0  
Apr 19 19:45:50 zynthian startx[54042]: Current Operating System: Linux zynthian 6.12.47+rpt-rpi-2712 #1 SMP PREEMPT Debian 1:6.12.47-1+rpt1~bookworm (2025-09-16) aarch64  
Apr 19 19:45:50 zynthian startx[54042]: Kernel command line: reboot=w coherent\_pool=1M 8250.nr\_uarts=1 pci=pcie\_bus\_safe cgroup\_disable=memory numa\_policy=interleave nvme.max\_host\_mem\_size\_mb=0 numa=fake=8 system\_heap.max\_order=0 iommu\_dma\_numa\_policy=interleave smsc95xx.macaddr=88:A2:9E:0A:F9:9F vc\_mem.mem\_base=0x3fc00000 vc\_mem.mem\_size=0x40000000 root=PARTUUID=e249d476-02 rootfstype=ext4 fsck.repair=yes rootwait console=tty1 logo.nologo modules-load=dwc2,libcomposite  
Apr 19 19:45:50 zynthian startx[54042]: xorg-server 2:21.1.7-3+rpt3+deb12u11 ( [Debian -- User Support](https://www.debian.org/support) )  
Apr 19 19:45:50 zynthian startx[54042]: Current version of pixman: 0.44.0  
Apr 19 19:45:50 zynthian startx[54042]: Before reporting problems, check [http://wiki.x.org](http://wiki.x.org)  
Apr 19 19:45:50 zynthian startx[54042]: to make sure that you have the latest version.  
Apr 19 19:45:50 zynthian startx[54042]: Markers: (–) probed, () from config file, (==) default setting,  
Apr 19 19:45:50 zynthian startx[54042]: (++) from command line, (!!) notice, (II) informational,  
Apr 19 19:45:50 zynthian startx[54042]: (WW) warning, (EE) error, (NI) not implemented, (??) unknown.  
Apr 19 19:45:50 zynthian startx[54042]: (==) Log file: “/var/log/Xorg.0.log”, Time: Sun Apr 19 19:45:50 2026  
Apr 19 19:45:50 zynthian startx[54042]: (==) Using config directory: “/etc/X11/xorg.conf.d”  
Apr 19 19:45:50 zynthian startx[54042]: (==) Using system config directory “/usr/share/X11/xorg.conf.d”  
Apr 19 19:45:50 zynthian startx[54051]: ----------------------------------------------  
Apr 19 19:45:50 zynthian startx[54051]: Linux Version: bookworm  
Apr 19 19:45:50 zynthian startx[54051]: Kernel Version: 6.12.47+rpt-rpi-2712  
Apr 19 19:45:50 zynthian startx[54051]: ZynthianOS Version: 2601  
Apr 19 19:45:50 zynthian startx[54051]: Virtualization: none  
Apr 19 19:45:50 zynthian startx[54051]: Hardware Architecture: aarch64  
Apr 19 19:45:50 zynthian startx[54051]: Hardware Model: Raspberry Pi 5 Model B Rev 1.1  
Apr 19 19:45:50 zynthian startx[54051]: ----------------------------------------------  
Apr 19 19:45:50 zynthian startx[54080]: /zynthian/config/img/fb\_zynthian\_boot.jpg is a 1920x1280 JPEG image, color space Grayscale, 1 comp, Huffman coding.  
Apr 19 19:45:50 zynthian startx[54080]: Zooming image by 100%…done  
Apr 19 19:45:50 zynthian startx[54080]: Merging…didn’t find evidence of prior run.  
Apr 19 19:45:50 zynthian startx[54080]: done  
Apr 19 19:45:50 zynthian startx[54080]: Building XImage…done  
Apr 19 19:45:51 zynthian startx[54082]: Loaded libzynaudioplayer using libsndfile-1.2.0  
Apr 19 19:45:52 zynthian startx[54082]: Started zynmixer\_chan  
Apr 19 19:45:52 zynthian startx[54082]: Started zynmixer\_bus  
Apr 19 19:45:52 zynthian startx[54082]: Started libzynseq  
Apr 19 19:45:52 zynthian startx[54082]: Started libzynsmf  
Apr 19 19:45:52 zynthian startx[54082]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 1, delay: 370.0us  
Apr 19 19:45:52 zynthian startx[54082]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 2, delay: 1211.0us  
Apr 19 19:45:52 zynthian startx[54082]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 3, delay: 39208.0us  
Apr 19 19:45:52 zynthian startx[54082]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 4, delay: 40388.0us  
Apr 19 19:46:18 zynthian startx[54082]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 5, delay: 2945.0us  
Apr 19 19:46:18 zynthian startx[54082]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 6, delay: 100018.0us  
Apr 19 19:46:18 zynthian startx[54082]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 7, delay: 100018.0us  
Apr 19 19:46:18 zynthian startx[54082]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 8, delay: 100018.0us  
Apr 19 19:46:18 zynthian startx[54082]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 9, delay: 100018.0us  
(venv) root@zynthian:/zynthian/zynthian-my-data/scripts#

---

<div class="post-metadata">

**Author:** ![smespresati](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/s/9d8465/32.png) [@smespresati](https://discourse.zynthian.org/u/smespresati)\
**Post date:** [April 24, 2026, 12:48pm UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/5 "2026-04-24T12:48:06Z")

</div>

A new update,

Just to be sure my usb soundcard is not causing the issue I installed a Hifiberry DAC+ ADC PRO and the issue is still there. I don’t know if this will help isolating/fixing the problem.

My testing hardware now is: Pi 5, Hifiberry DAC+ ADC PRO, Touchscreen Minis SF10T.

If there are some testing I can do to help isolating, I’ll do it.

Best regards.

---

<div class="post-metadata">

**Author:** ![tunagenes](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/tunagenes/32/7279_2.png) [@tunagenes](https://discourse.zynthian.org/u/tunagenes)\
**Post date:** [April 24, 2026, 8:22pm UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/6 "2026-04-24T20:22:25Z")

</div>

> [@riban](#):
>
> You can often use the back button in this scenario so maybe the issue is different.

@smespresati - Could you report whether the back button works so we can tell whether the issue is different.

---

<div class="post-metadata">

**Author:** ![smespresati](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/s/9d8465/32.png) [@smespresati](https://discourse.zynthian.org/u/smespresati)\
**Post date:** [April 25, 2026, 8:01am UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/7 "2026-04-25T08:01:24Z")

</div>

Hi @riban,

Once the gui freezes I rekon back button does nothing. I’ll try it later this afternoon to confirm that. If I’m not wrong the only thing I can do with the gui is unhide/hide v5 touch kepad.

Best regards.

---

<div class="post-metadata">

**Author:** ![Aethermind](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/aethermind/32/9208_2.png) [@Aethermind](https://discourse.zynthian.org/u/Aethermind)\
**Post date:** [April 25, 2026, 8:13am UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/8 "2026-04-25T08:13:21Z")

</div>

Hi @tunagenes and @riban,

Regarding the @smespresati’s experienced issue, in my case of frozen UI the whole lot of controls becomes unresponsive, including physical and virtual buttons. The only performable action remains moving the cursor, either on the touchscreen or through the mouse.

Best regards 🙂🌈

---

<div class="post-metadata">

**Author:** ![smespresati](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/s/9d8465/32.png) [@smespresati](https://discourse.zynthian.org/u/smespresati)\
**Post date:** [April 25, 2026, 3:38pm UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/9 "2026-04-25T15:38:03Z")

</div>

Well, I did the testing. I made a video to show what exactly happens. As @Aethermind mentioned above, when UI is frozen cursor is alive and follows the finger.

Note that main chain can move volume bar, but when touching the “Main” name then the mixer gets frozen.

> **[Vangelis\_UI\_frozen.mp4](https://drive.google.com/file/d/1x7ZVU6vqGNqfHmRRL7B-eQKFRCgYyMPE/view?usp=sharing)**
>
> Google Drive file.

Jalv/Noize Mak3r  
Apr 25 16:08:49 zynthian startx[53882]: DEBUG:zynthian\_engine\_jalv.start: Command: [‘jalv.gtk3’, ‘–jack-name’, ‘Noize\_Mak3r-03’, ‘[http://kunz.corrupt.ch/products/tal-noisemaker’\\\\\\](http://kunz.corrupt.ch/products/tal-noisemaker%E2%80%99%5C%5C%5C%5C%5C%5C)]  
Apr 25 16:08:50 zynthian startx[53882]: DEBUG:zynthian\_chain\_manager.add\_processor: Adding processor ‘MI’ with ID ‘24’  
Apr 25 16:08:50 zynthian startx[53882]: DEBUG:zynthian\_chain\_manager.add\_processor: Adding processor ‘JV/Calf Compressor’ with ID ‘17’  
Apr 25 16:08:50 zynthian startx[53882]: DEBUG:zynthian\_engine\_jalv. **init** : CREATING JALV ENGINE =\> Calf\_Compressor-01  
Apr 25 16:08:50 zynthian startx[53882]: INFO:zynthian\_engine\_jalv.get\_lv2\_controllers\_dict: Getting Controller List from LV2 Plugin …  
Apr 25 16:08:50 zynthian startx[53882]: INFO:zynthian\_engine\_jalv.start: Starting Engine Jalv/Calf Compressor  
Apr 25 16:08:50 zynthian startx[53882]: DEBUG:zynthian\_engine\_jalv.start: Command: [‘jalv.gtk3’, ‘–jack-name’, ‘Calf\_Compressor-01’, ‘[http://calf.sourceforge.net/plugins/Compressor’\\\\\\](http://calf.sourceforge.net/plugins/Compressor%E2%80%99%5C%5C%5C%5C%5C%5C)]  
Apr 25 16:08:51 zynthian startx[53882]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 1, delay: 113.0us  
Apr 25 16:08:51 zynthian startx[53882]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 2, delay: 145.0us  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 3, delay: 28776.0us  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 15 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_engine\_linuxsampler.\_get\_preset\_list: Getting Preset List for SFZ/Drum Machines  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.load\_preset\_list: Loaded 41 presets  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.set\_preset: Preset selected: Roland TR909 (27)  
Apr 25 16:08:52 zynthian startx[53882]: DEBUG:zynthian\_engine\_sfz.load\_yaml\_config: Yaml config file ‘/zynthian/zynthian-data/soundfonts/sfz/Drum Machines/Roland TR909.yml’ not found  
Apr 25 16:08:52 zynthian startx[53882]: DEBUG:zynthian\_engine\_sfz.load\_yaml\_config: Yaml config file ‘/zynthian/zynthian-data/soundfonts/sfz/Drum Machines/common.yml’ not found  
Apr 25 16:08:52 zynthian startx[53882]: DEBUG:zynthian\_engine\_sfz.get\_controllers\_dict: Custom Controllers =\>  
Apr 25 16:08:52 zynthian startx[53882]:   
Apr 25 16:08:52 zynthian startx[53882]: DEBUG:zynthian\_engine\_sfz.get\_controllers\_dict: Custom Controller Screens =\>  
Apr 25 16:08:52 zynthian startx[53882]:   
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘modulation wheel’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘sustain’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘sostenuto’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘legato’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘breath’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘portamento on/off’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘portamento time-coarse’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘portamento time-fine’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘filter cutoff’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘filter resonance’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘env. attack’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘env. release’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘modulation wheel’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘sustain’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘sostenuto’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘legato’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘breath’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘portamento on/off’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘portamento time-coarse’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘portamento time-fine’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘filter cutoff’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘filter resonance’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘env. attack’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 1#LinuxSampler: ‘env. release’  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 1 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.load\_preset\_list: Loaded 1 presets  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 23 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.load\_preset\_list: Loaded 64 presets  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.set\_preset: Preset selected: EBMRQBass - 01 (26)  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 2#Obxd: ‘sustain pedal’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 2#Obxd: ‘sustain pedal’  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 1 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.load\_preset\_list: Loaded 274 presets  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.set\_preset: Preset selected: SF Brass Portamento (227)  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 3#Helm: ‘sustain pedal’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 3#Helm: ‘sustain pedal’  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 1 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.load\_preset\_list: Loaded 1 presets  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 23 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.load\_preset\_list: Loaded 128 presets  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.set\_preset: Preset selected: BzSYN Might as well (37)  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 4#Obxd: ‘sustain pedal’  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_processor.set\_state: Invalid controller for processor 4#Obxd: ‘sustain pedal’  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 1 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.load\_preset\_list: Loaded 1 presets  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 1 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.load\_preset\_list: Loaded 10 presets  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.set\_preset: Preset selected: 80er Plate (0)  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 1 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.load\_preset\_list: Loaded 347 presets  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.set\_preset: Preset selected: FX S-chained rise 4 s/l (194)  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 1 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.load\_preset\_list: Loaded 347 presets  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.set\_preset: Preset selected: LD Pleutonium FN (285)  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 1 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.load\_preset\_list: Loaded 347 presets  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.set\_preset: Preset selected: DR Crash Space TAL (121)  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 1 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.load\_preset\_list: Loaded 1 presets  
Apr 25 16:08:52 zynthian startx[53882]: DEBUG:zynthian\_engine\_jalv.proc\_poll\_parse\_line: LOG Noize\_Mak3r-01 \> error: Preset control `lv2_port_1': doesn't exist! Apr 25 16:08:52 zynthian startx[53882]: DEBUG:zynthian_engine_jalv.proc_poll_parse_line: LOG Noize_Mak3r-01 > error: Preset control `lv2\_port\_71’: doesn’t exist!  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 0 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 0 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 0 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 0 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 0 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 0 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 0 banks  
Apr 25 16:08:52 zynthian startx[53882]: INFO:zynthian\_processor.get\_bank\_list: Loaded 0 banks  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_state\_manager.load\_zs3: Failed to restore MIDI learning 255#1 =\> 0:modulation wheel  
Apr 25 16:08:52 zynthian startx[53882]: DEBUG:zynthian\_chain\_manager.add\_midi\_learn: (chan=255, midi\_cc=7, zctrl=volume, zmip=None)  
Apr 25 16:08:52 zynthian startx[53882]: DEBUG:zynthian\_chain\_manager.add\_midi\_learn: (chan=255, midi\_cc=10, zctrl=pan, zmip=None)  
Apr 25 16:08:52 zynthian startx[53882]: DEBUG:zynthian\_chain\_manager.add\_midi\_learn: (chan=255, midi\_cc=11, zctrl=expression, zmip=None)  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_state\_manager.load\_zs3: Failed to restore MIDI learning 255#64 =\> 0:sustain  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_state\_manager.load\_zs3: Failed to restore MIDI learning 255#66 =\> 0:sostenuto  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_state\_manager.load\_zs3: Failed to restore MIDI learning 255#68 =\> 0:legato  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_state\_manager.load\_zs3: Failed to restore MIDI learning 255#2 =\> 0:breath  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_state\_manager.load\_zs3: Failed to restore MIDI learning 255#65 =\> 0:portamento on/off  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_state\_manager.load\_zs3: Failed to restore MIDI learning 255#5 =\> 0:portamento time-coarse  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_state\_manager.load\_zs3: Failed to restore MIDI learning 255#37 =\> 0:portamento time-fine  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_state\_manager.load\_zs3: Failed to restore MIDI learning 255#74 =\> 0:filter cutoff  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_state\_manager.load\_zs3: Failed to restore MIDI learning 255#71 =\> 0:filter resonance  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_state\_manager.load\_zs3: Failed to restore MIDI learning 255#73 =\> 0:env. attack  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_state\_manager.load\_zs3: Failed to restore MIDI learning 255#72 =\> 0:env. release  
Apr 25 16:08:52 zynthian startx[53882]: DEBUG:zynthian\_chain\_manager.add\_midi\_learn: (chan=255, midi\_cc=1, zctrl=modulation wheel, zmip=None)  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_state\_manager.load\_zs3: Failed to restore MIDI learning 255#64 =\> 1:sustain pedal  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_state\_manager.load\_zs3: Failed to restore MIDI learning 255#64 =\> 2:sustain pedal  
Apr 25 16:08:52 zynthian startx[53882]: DEBUG:zynthian\_chain\_manager.add\_midi\_learn: (chan=255, midi\_cc=1, zctrl=modulation wheel, zmip=None)  
Apr 25 16:08:52 zynthian startx[53882]: WARNING:zynthian\_state\_manager.load\_zs3: Failed to restore MIDI learning 255#64 =\> 4:sustain pedal  
Apr 25 16:08:53 zynthian startx[53882]: DEBUG:zynthian\_gui.prune\_screen\_history: SCREEN HISTORY =\> [‘add\_chain’, ‘snapshot’]  
Apr 25 16:08:53 zynthian startx[53882]: DEBUG:zynthian\_gui.prune\_screen\_history: PRUNE ‘loading’ FROM SCREEN HISTORY =\> [‘add\_chain’, ‘snapshot’]  
Apr 25 16:08:53 zynthian startx[53882]: DEBUG:zynthian\_gui.close\_screen: CLOSE SCREEN ‘loading’ =\> Back to ‘snapshot’  
Apr 25 16:08:53 zynthian startx[53882]: DEBUG:zynthian\_gui.prune\_screen\_history: SCREEN HISTORY =\> [‘mixer’]  
Apr 25 16:08:53 zynthian startx[53882]: DEBUG:zynthian\_gui.prune\_screen\_history: PRUNE ‘snapshot’ FROM SCREEN HISTORY =\> [‘mixer’]  
Apr 25 16:08:57 zynthian startx[53882]: DEBUG:zynthian\_gui.zynswitch\_short: Short Switch 5  
Apr 25 16:08:57 zynthian startx[53882]: DEBUG:zynthian\_gui.callable\_ui\_action: CUIA ‘SCREEN\_AUDIO\_MIXER’ =\> None  
Apr 25 16:09:26 zynthian startx[53882]: DEBUG:zynthian\_gui.zynswitch\_short: Short Switch 4  
Apr 25 16:09:26 zynthian startx[53882]: DEBUG:zynthian\_gui.callable\_ui\_action: CUIA ‘MENU’ =\> None  
Apr 25 16:10:10 zynthian startx[53851]: ./zynthian.sh: line 316: 53882 User defined signal 2 ./zynthian\_main.py  
Apr 25 16:10:10 zynthian startx[53851]: \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
Apr 25 16:10:10 zynthian startx[53851]: EXIT STATUS =\> 140  
Apr 25 16:10:10 zynthian startx[53851]: \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
Apr 25 16:10:10 zynthian startx[54539]: /zynthian/config/img/fb\_zynthian\_message.jpg is a 1920x1280 JPEG image, color space YCbCr, 3 comps, Huffman coding.  
Apr 25 16:10:10 zynthian startx[54539]: Zooming image by 100%…done  
Apr 25 16:10:10 zynthian startx[54539]: Merging…done  
Apr 25 16:10:10 zynthian startx[54539]: Building XImage…done  
Apr 25 16:10:20 zynthian startx[54543]: INFO:zynthian\_gui\_config.: ZYNTHIAN-UI CONFIG …  
Apr 25 16:10:20 zynthian startx[54543]: INFO:zynthian\_gui\_config.: Kit Version: Custom  
Apr 25 16:10:20 zynthian startx[54543]: INFO:zynthian\_gui\_config.: Wiring Layout: TOUCH\_ONLY  
Apr 25 16:10:20 zynthian startx[54543]: DEBUG:zynthian\_gui\_config.: TOUCH NAVIGATION = v5\_keypad\_left  
Apr 25 16:10:20 zynthian startx[54543]: DEBUG:PngImagePlugin.call: STREAM b’IHDR’ 16 13  
Apr 25 16:10:20 zynthian startx[54543]: DEBUG:PngImagePlugin.call: STREAM b’bKGD’ 41 6  
Apr 25 16:10:20 zynthian startx[54543]: DEBUG:PngImagePlugin.\_open: b’bKGD’ 41 6 (unknown)  
Apr 25 16:10:20 zynthian startx[54543]: DEBUG:PngImagePlugin.call: STREAM b’pHYs’ 59 9  
Apr 25 16:10:20 zynthian startx[54543]: DEBUG:PngImagePlugin.call: STREAM b’tIME’ 80 7  
Apr 25 16:10:20 zynthian startx[54543]: DEBUG:PngImagePlugin.\_open: b’tIME’ 80 7 (unknown)  
Apr 25 16:10:20 zynthian startx[54543]: DEBUG:PngImagePlugin.call: STREAM b’IDAT’ 99 8192  
Apr 25 16:10:21 zynthian startx[54543]: DEBUG:zynthian\_lv2.load\_engines: Loaded engine config with timestamp: 1777110768.0256567  
Apr 25 16:10:21 zynthian startx[54543]: Loaded libzynaudioplayer using libsndfile-1.2.0  
Apr 25 16:10:21 zynthian startx[54543]: INFO:zynthian\_engine\_audioplayer.zynthian\_engine\_audioplayer: Supported Audio Codecs: [‘aiff’, ‘aifc’, ‘au’, ‘caf’, ‘flac’, ‘mp3’, ‘vox’, ‘opus’, ‘ogg’, ‘wav’]  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_main.: STARTING ZYNTHIAN-UI …  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_state\_manager. **init** : Creating state manager  
Apr 25 16:10:22 zynthian startx[54543]: Started zynmixer\_chan  
Apr 25 16:10:22 zynthian startx[54543]: Started zynmixer\_bus  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_chain\_manager. **init** : Creating chain manager  
Apr 25 16:10:22 zynthian startx[54543]: Started libzynseq  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_chain\_manager.add\_processor: Adding processor ‘MX’ with ID ‘-2’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_engine\_alsa\_mixer.get\_controllers\_dict: MIXER CTRL LIST: [‘Digital\_0’, ‘PGA\_Gain\_Left’, ‘Digital\_1’, ‘PGA\_Gain\_Right’, ‘ADC\_Left\_Input’, ‘ADC\_Right\_Input’]  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_chain\_manager.add\_processor: Adding processor ‘TP’ with ID ‘-4’  
Apr 25 16:10:22 zynthian startx[54543]: Started libzynsmf  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_state\_manager.start: Opened temperature sensor ‘/sys/class/hwmon/hwmon0/temp1\_input’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_state\_manager.start: Opened undervoltage sensor ‘/sys/class/hwmon/hwmon2/in0\_lcrit\_alarm’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_chain\_manager.add\_chain: ADDED CHAIN 0 =\> midi\_chan=None, zmop\_index=None  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_akai\_apc\_key25\_mk2\_sooperlooper’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_sinco\_smk25\_bt’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_arturia\_keylab\_61\_mk2’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_akai\_apc\_key25’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_akai\_apc\_key25\_sooperlooper’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_launchkey\_mini\_mk3’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_launchpad\_x’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_mackiecontrol’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_behringer\_motor’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_riband’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_launchkey\_mk4\_37’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_akai\_midimix’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_akai\_mpk\_mini\_mk3\_moder’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_sinco\_smk25’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_akai\_apc\_40\_mk2’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_launchpad\_pro\_mk3’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_teenageengineering\_op1’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_launchkey\_mini\_mk4\_37’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_fostex\_mixtab’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_duopiano’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_launchpad\_pro\_mk2’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_akai\_mpk\_mini\_mk3’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_worlde\_mini\_moder’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_launchpad\_mini\_mk3’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_korg\_nanokontrol2’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_launchpad\_mini’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_ctrldev\_manager.update\_available\_drivers: Loaded ctrldev driver class ‘zynthian\_ctrldev\_akai\_apc\_key25\_mk2’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_akai\_apc\_key25\_mk2\_sooperlooper’ for devices with ID ‘APC Key 25 mk2 MIDI 2’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_akai\_apc\_key25\_mk2\_sooperlooper’ for devices with ID ‘APC Key 25 mk2 IN 2’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_sinco\_smk25\_bt’ for devices with ID ‘SMK25V2 IN’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_arturia\_keylab\_61\_mk2’ for devices with ID ‘KeyLab mkII 61 IN 2’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_akai\_apc\_key25’ for devices with ID ‘APC Key 25 MIDI 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_akai\_apc\_key25’ for devices with ID ‘APC Key 25 IN 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_akai\_apc\_key25\_sooperlooper’ for devices with ID ‘APC Key 25 MIDI 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_akai\_apc\_key25\_sooperlooper’ for devices with ID ‘APC Key 25 IN 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_launchkey\_mini\_mk3’ for devices with ID ‘Launchkey Mini MK3 IN 2’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_launchpad\_x’ for devices with ID ‘Launchpad X IN 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_mackiecontrol’ for devices with ID ‘_’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_behringer\_motor’ for devices with ID ‘MOTÖR61 Keyboard IN 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_behringer\_motor’ for devices with ID ‘MOTÖR49 Keyboard IN 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_riband’ for devices with ID ‘riband Bluetooth’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_launchkey\_mk4\_37’ for devices with ID ‘Launchkey MK4 37 DAW In’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_launchkey\_mk4\_37’ for devices with ID ‘Launchkey MK4 37 IN 2’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_akai\_midimix’ for devices with ID ‘MIDI Mix IN 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_akai\_mpk\_mini\_mk3\_moder’ for devices with ID ‘MPK mini 3 IN 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_sinco\_smk25’ for devices with ID ‘SINCO IN 2’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_akai\_apc\_40\_mk2’ for devices with ID ‘APC40 mkII IN 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_launchpad\_pro\_mk3’ for devices with ID ‘Launchpad Pro MK3 IN 3’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_teenageengineering\_op1’ for devices with ID ‘OP-1 IN 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_launchkey\_mini\_mk4\_37’ for devices with ID ‘Launchkey Mini MK4 37 IN 2’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_fostex\_mixtab’ for devices with ID '_’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_duopiano’ for devices with ID ‘GENERAL IN 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_launchpad\_pro\_mk2’ for devices with ID ‘Launchpad Pro IN 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_akai\_mpk\_mini\_mk3’ for devices with ID ‘MPK mini 3 IN 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_worlde\_mini\_moder’ for devices with ID ‘WORLDE MINI IN 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_launchpad\_mini\_mk3’ for devices with ID ‘Launchpad Mini MK3 IN 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_korg\_nanokontrol2’ for devices with ID ‘nanoKONTROL2 IN 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_launchpad\_mini’ for devices with ID ‘Launchpad Mini IN 1’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_akai\_apc\_key25\_mk2’ for devices with ID ‘APC Key 25 mk2 MIDI 2’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_ctrldev\_manager.update\_available\_drivers: Found ctrldev driver ‘zynthian\_ctrldev\_akai\_apc\_key25\_mk2’ for devices with ID ‘APC Key 25 mk2 IN 2’  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_autoconnect.init: Initializing 27 slots for MIDI input devices  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_autoconnect.init: Initializing 24 slots for MIDI output devices  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_chain\_manager.add\_processor: Adding processor ‘MR’ with ID ‘-1’  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_autoconnect.midi\_autoconnect: Connected MIDI-in device 0: ttymidi:MIDI\_in  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_autoconnect.midi\_autoconnect: Connected MIDI-out device 0: ttymidi:MIDI\_out  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_autoconnect.midi\_autoconnect: Connected MIDI-out device 1: ZynMaster:midi\_in  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_autoconnect.midi\_autoconnect: Connected MIDI-out device 2: ZynMidiRouter:seq\_in  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:zynthian\_chain\_manager.add\_processor: Adding processor ‘AP’ with ID ‘-3’  
Apr 25 16:10:22 zynthian startx[54543]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 1, delay: 11.0us  
Apr 25 16:10:22 zynthian startx[54543]: INFO:zynthian\_state\_manager.set\_power\_save\_mode: Power Save Mode: OFF  
Apr 25 16:10:22 zynthian startx[54543]: DEBUG:selector\_events. **init** : Using selector: EpollSelector  
Apr 25 16:10:23 zynthian startx[54543]: DEBUG:zynthian\_gui\_brightness\_config.get\_backlight\_sysctrl\_fpath: Can’t find a display brightness control file  
Apr 25 16:10:23 zynthian startx[54543]: INFO:zynthian\_gui\_brightness\_config.init\_ctrls: Setting LED brightness to 1.0.  
Apr 25 16:10:23 zynthian startx[54543]: INFO:zynthian\_gui.zynswitches\_init: INIT 28 ZYNSWITCHES …  
Apr 25 16:10:23 zynthian startx[54543]: INFO:zynthian\_gui.osc\_init: ZYNTHIAN-UI OSC server running in port 1370  
Apr 25 16:10:23 zynthian startx[54543]: DEBUG:zynthian\_gui.prune\_screen\_history: SCREEN HISTORY =\>   
Apr 25 16:10:23 zynthian startx[54543]: DEBUG:zynthian\_gui.prune\_screen\_history: PRUNE ‘loading’ FROM SCREEN HISTORY =\>   
Apr 25 16:10:23 zynthian startx[54543]: DEBUG:zynthian\_gui.close\_screen: CLOSE SCREEN ‘loading’ =\> Back to ‘root’  
Apr 25 16:10:23 zynthian startx[54543]: DEBUG:zynthian\_gui.prune\_screen\_history: SCREEN HISTORY =\>   
Apr 25 16:10:23 zynthian startx[54543]: DEBUG:zynthian\_gui.prune\_screen\_history: PRUNE ‘mixer’ FROM SCREEN HISTORY =\>

---

<div class="post-metadata">

**Author:** ![Aethermind](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/aethermind/32/9208_2.png) [@Aethermind](https://discourse.zynthian.org/u/Aethermind)\
**Post date:** [April 26, 2026, 6:22am UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/10 "2026-04-26T06:22:24Z")

</div>

Interesting @smespresati: your reported behaviour is very close to mine, except in my case happens as soon as OPT in the keypad overlay or Chain Manager in the Options view (through bold press in the top bar) are engaged, irrespective of using a touchscreen or a mouse on an hdmi screen. As already pointed out, this would appear to be related to something in the Chain Manager and Options call, or in the implementation of their UI, but only in relationship with specific DIY hardware setups, since other custom installations don’t seem to be affected by the same issue.

Regards

---

<div class="post-metadata">

**Author:** ![smespresati](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/s/9d8465/32.png) [@smespresati](https://discourse.zynthian.org/u/smespresati)\
**Post date:** [April 27, 2026, 4:01am UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/11 "2026-04-27T04:01:56Z")

</div>

Hi, I realized that when zynthian loads even without any snapshot (load last state unchecked), if the very first thing you do is touch OPT button, then keypad gets frozen. If you touch any other keypad button then it works as expected, until you touch OPT.

Muy testing custom build is: pi 5 8GB, hifiberry adac+ dac pro, touchscreen hdmi+USB Minix SF10T, boot from sd. Only the toucscreen is the hardware not supported.

At this point I wonder:

1. V5 official kit behaves this way when using touch navigation? I’m assuming that physical switches works as expected, otherwise Vangelis would be useless.
2. Does some custom build works properly? For instance, does DSi displays works? Or, are there some USB touch interface that works?

I have the feeling it’s not hardware related, but I cannot believe software can behaves so differently depending on the hardware. Once the OPT button triggers the proper action, I guess the subsequent processes should be the same.

Best regards.

---

<div class="post-metadata">

**Author:** ![Aethermind](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/aethermind/32/9208_2.png) [@Aethermind](https://discourse.zynthian.org/u/Aethermind)\
**Post date:** [April 27, 2026, 5:27am UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/12 "2026-04-27T05:27:34Z")

</div>

> [@smespresati](#):
>
> V5 official kit behaves this way when using touch navigation?

> [@smespresati](#):
>
> Does some custom build works properly?

> [@smespresati](#):
>
> I have the feeling it’s not hardware related

The point is exactly that V 5.1 works just fine (other occasional testing glitches aside, of course) with Vangelis, with none of the OPT-related GUI issues that the two of us have experienced on custom builds. I tend to think instead that the Chain Manager problem _might be_, somehow, hardware-related, depending specifically on certain HDMI driver implementations, but I haven’t had the chance of comparing the behaviour of a DSI build. There seem to be other DIY setups, like @wyleu’s, that run properly the Vangelis GUI.

---

<div class="post-metadata">

**Author:** ![smespresati](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/s/9d8465/32.png) [@smespresati](https://discourse.zynthian.org/u/smespresati)\
**Post date:** [April 27, 2026, 6:57am UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/13 "2026-04-27T06:57:42Z")

</div>

The point is this exact hardware setup works with Oram. This leads me to think that hardware is OK. Does Vangelis use differently the hardware than Oram does? I don’ think that. Perhaps our developers can enlighten a bit the way things work in Oram in order we can progress in finding a solution to our specific issue.

Best regards.

---

<div class="post-metadata">

**Author:** ![jofemodo](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/jofemodo/32/2_2.png) [@jofemodo](https://discourse.zynthian.org/u/jofemodo)\
**Post date:** [April 27, 2026, 6:59am UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/14 "2026-04-27T06:59:18Z")

</div>

Hi guys!

Please, try to catch the UI logs when the error happens. You don’t need to send all the logs, just the fragment with the error.

Thanks

---

<div class="post-metadata">

**Author:** ![Aethermind](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/aethermind/32/9208_2.png) [@Aethermind](https://discourse.zynthian.org/u/Aethermind)\
**Post date:** [April 27, 2026, 7:13am UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/15 "2026-04-27T07:13:55Z")

</div>

Hi @jofemodo 🙂

I seem to remember that the GUI log shows nothing when the freeze event occurs, but I will check again and get back here!

Regards

---

<div class="post-metadata">

**Author:** ![Aethermind](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/aethermind/32/9208_2.png) [@Aethermind](https://discourse.zynthian.org/u/Aethermind)\
**Post date:** [April 27, 2026, 7:15am UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/16 "2026-04-27T07:15:29Z")

</div>

> [@smespresati](#):
>
> this exact hardware setup works with Oram

Same here 🙂

---

<div class="post-metadata">

**Author:** ![smespresati](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/s/9d8465/32.png) [@smespresati](https://discourse.zynthian.org/u/smespresati)\
**Post date:** [April 27, 2026, 8:50am UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/17 "2026-04-27T08:50:00Z")

</div>

Hi, this is the last messages in UI log in debug mode. At this point UI is frozen and nothing more is logged despite of I’m touching the display.

I know now how to exactly reproduce the issue: as soon as I short touch OPT/ADMIN (I mean OPT)…or I touch Main chain to select it (level bar works) then UI freezes. Surprisingly (for me) when zynthian has just loaded and the UI works, touching Main chain to select it, most of the time freezes de UI but nothing is logged in the UI logs.

> Apr 27 09:39:49 zynthian startx[1622]: INFO:zynthian\_autoconnect.init: Initializing 27 slots for MIDI input devices  
> Apr 27 09:39:49 zynthian startx[1622]: INFO:zynthian\_autoconnect.init: Initializing 24 slots for MIDI output devices  
> Apr 27 09:39:49 zynthian startx[1622]: DEBUG:zynthian\_chain\_manager.add\_processor: Adding processor ‘MR’ with ID ‘-1’  
> Apr 27 09:39:49 zynthian startx[1622]: DEBUG:zynthian\_autoconnect.midi\_autoconnect: Connected MIDI-in device 0: system:midi\_capture\_1  
> Apr 27 09:39:49 zynthian startx[1622]: DEBUG:zynthian\_autoconnect.midi\_autoconnect: Connected MIDI-in device 1: system:midi\_capture\_2  
> Apr 27 09:39:49 zynthian startx[1622]: DEBUG:zynthian\_autoconnect.midi\_autoconnect: Connected MIDI-in device 2: system:midi\_capture\_3  
> Apr 27 09:39:49 zynthian startx[1622]: DEBUG:zynthian\_autoconnect.midi\_autoconnect: Connected MIDI-in device 3: system:midi\_capture\_4  
> Apr 27 09:39:49 zynthian startx[1622]: DEBUG:zynthian\_autoconnect.midi\_autoconnect: Connected MIDI-in device 4: ttymidi:MIDI\_in  
> Apr 27 09:39:49 zynthian startx[1622]: DEBUG:zynthian\_autoconnect.midi\_autoconnect: Connected MIDI-out device 0: system:midi\_playback\_1  
> Apr 27 09:39:49 zynthian startx[1622]: DEBUG:zynthian\_autoconnect.midi\_autoconnect: Connected MIDI-out device 1: system:midi\_playback\_2  
> Apr 27 09:39:49 zynthian startx[1622]: DEBUG:zynthian\_autoconnect.midi\_autoconnect: Connected MIDI-out device 2: system:midi\_playback\_3  
> Apr 27 09:39:49 zynthian startx[1622]: DEBUG:zynthian\_autoconnect.midi\_autoconnect: Connected MIDI-out device 3: system:midi\_playback\_4  
> Apr 27 09:39:49 zynthian startx[1622]: DEBUG:zynthian\_autoconnect.midi\_autoconnect: Connected MIDI-out device 4: ttymidi:MIDI\_out  
> Apr 27 09:39:49 zynthian startx[1622]: DEBUG:zynthian\_autoconnect.midi\_autoconnect: Connected MIDI-out device 5: ZynMaster:midi\_in  
> Apr 27 09:39:49 zynthian startx[1622]: DEBUG:zynthian\_autoconnect.midi\_autoconnect: Connected MIDI-out device 6: ZynMidiRouter:seq\_in  
> Apr 27 09:39:49 zynthian startx[1622]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 1, delay: 127.0us  
> Apr 27 09:39:49 zynthian startx[1622]: DEBUG:zynthian\_chain\_manager.add\_processor: Adding processor ‘AP’ with ID ‘-3’  
> Apr 27 09:39:50 zynthian startx[1622]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 2, delay: 38039.0us  
> Apr 27 09:39:50 zynthian startx[1622]: INFO:zynthian\_state\_manager.set\_power\_save\_mode: Power Save Mode: OFF  
> Apr 27 09:39:50 zynthian startx[1622]: DEBUG:selector\_events.\__init_\_: Using selector: EpollSelector  
> Apr 27 09:39:50 zynthian startx[1622]: DEBUG:zynthian\_gui\_brightness\_config.get\_backlight\_sysctrl\_fpath: Can’t find a display brightness control file  
> Apr 27 09:39:50 zynthian startx[1622]: INFO:zynthian\_gui\_brightness\_config.init\_ctrls: Setting LED brightness to 1.0.  
> Apr 27 09:39:50 zynthian startx[1622]: INFO:zynthian\_gui.zynswitches\_init: INIT 28 ZYNSWITCHES …  
> Apr 27 09:39:50 zynthian startx[1622]: INFO:zynthian\_gui.osc\_init: ZYNTHIAN-UI OSC server running in port 1370  
> Apr 27 09:39:50 zynthian startx[1622]: DEBUG:zynthian\_gui.prune\_screen\_history: SCREEN HISTORY =\> []  
> Apr 27 09:39:50 zynthian startx[1622]: DEBUG:zynthian\_gui.prune\_screen\_history: PRUNE ‘loading’ FROM SCREEN HISTORY =\> []  
> Apr 27 09:39:50 zynthian startx[1622]: DEBUG:zynthian\_gui.close\_screen: CLOSE SCREEN ‘loading’ =\> Back to ‘root’  
> Apr 27 09:39:50 zynthian startx[1622]: DEBUG:zynthian\_gui.prune\_screen\_history: SCREEN HISTORY =\> []  
> Apr 27 09:39:50 zynthian startx[1622]: DEBUG:zynthian\_gui.prune\_screen\_history: PRUNE ‘mixer’ FROM SCREEN HISTORY =\> []  
> Apr 27 09:39:52 zynthian startx[1622]: DEBUG:zynthian\_state\_manager.update\_thread: \*\*\*\*\*\*\*\*\*\*\*\* CHECKING FOR UPDATES … \*\*\*\*\*\*\*\*\*\*\*\*  
> Apr 27 09:39:52 zynthian startx[1622]: WARNING:zynthian\_autoconnect.cb\_jack\_xrun: Jack Audio XRUN! =\>count: 3, delay: 63.0us  
> Apr 27 09:39:57 zynthian startx[1622]: DEBUG:zynthian\_gui.zynswitch\_short: Short Switch 4  
> Apr 27 09:39:57 zynthian startx[1622]: DEBUG:zynthian\_gui.callable\_ui\_action: CUIA ‘MENU’ =\> None

---

<div class="post-metadata">

**Author:** ![riban](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/riban/32/2331_2.png) [@riban](https://discourse.zynthian.org/u/riban)\
**Post date:** [April 27, 2026, 10:33am UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/18 "2026-04-27T10:33:04Z")

</div>

I am using a Waveshare 5" DSI with no hardware switches or knobs and V5 button overlay enabled on a RPi5 using Vangelis. I do not experience loss of touch control if I tap the OPT button immediately after boot.

---

<div class="post-metadata">

**Author:** ![jofemodo](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/jofemodo/32/2_2.png) [@jofemodo](https://discourse.zynthian.org/u/jofemodo)\
**Post date:** [April 27, 2026, 10:58am UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/19 "2026-04-27T10:58:30Z")

</div>

No error logs, so difficult to fix.  
Anyway, no errors logged at UI level probably (not 100%, but close ;-)) means it’s not a problem with zynthian software. It could be a system software problem (lower level) or hardware related.

Have you tried to take a look to system logs?

Regards,

---

<div class="post-metadata">

**Author:** ![Aethermind](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/aethermind/32/9208_2.png) [@Aethermind](https://discourse.zynthian.org/u/Aethermind)\
**Post date:** [April 27, 2026, 2:36pm UTC](https://discourse.zynthian.org/t/chain-manager-screen-lock-up-on-vangelis-resolved/13100/20 "2026-04-27T14:36:34Z")

</div>

Hi @jofemodo !

This is the UI log in debug mode on engaging Chain Manager, of my Pi5 8Gb + nvme + Waveshare 15.6” touch + Hifiberry DAC 8X Zynthian/Vangelis build.

There happens to be a potentially relevant WARNING, concerning

`multitouch.\_process_touch_events`

(see last log lines, highlighted with bold \*\*)

```auto
Restarting UI in debug mode
Apr 27 15:18:09 zynthian systemd\[1\]: Started zynthian_debug.service - Zynthian User Interface (DEBUG).
Apr 27 15:18:09 zynthian startx\[4284\]: X.Org X Server 1.21.1.7
Apr 27 15:18:09 zynthian startx\[4284\]: X Protocol Version 11, Revision 0
Apr 27 15:18:09 zynthian startx\[4284\]: Current Operating System: Linux zynthian 6.12.75+rpt-rpi-2712 #1 SMP PREEMPT Debian 1:6.12.75-1+rpt1\~bookworm (2026-03-11) aarch64
Apr 27 15:18:09 zynthian startx\[4284\]: Kernel command line: reboot=w coherent_pool=1M 8250.nr_uarts=1 pci=pcie_bus_safe cgroup_disable=memory numa_policy=interleave nvme.max_host_mem_size_mb=0 numa=fake=8 system_heap.max_order=0 iommu_dma_numa_policy=interleave smsc95xx.macaddr=2C:CF:67:00:B4:2A vc_mem.mem_base=0x3fc00000 vc_mem.mem_size=0x40000000 root=PARTUUID=e249d476-02 rootfstype=ext4 fsck.repair=yes rootwait console=tty1 logo.nologo modules-load=dwc2,libcomposite
Apr 27 15:18:09 zynthian startx\[4284\]: xorg-server 2:21.1.7-3+rpt3+deb12u11 ( https://www.debian.org/support )
Apr 27 15:18:09 zynthian startx\[4284\]: Current version of pixman: 0.44.0
Apr 27 15:18:09 zynthian startx\[4284\]: Before reporting problems, check http://wiki.x.org
Apr 27 15:18:09 zynthian startx\[4284\]: to make sure that you have the latest version.
Apr 27 15:18:09 zynthian startx\[4284\]: Markers: (--) probed, (\*\*) from config file, (==) default setting,
Apr 27 15:18:09 zynthian startx\[4284\]: (++) from command line, (!!) notice, (II) informational,
Apr 27 15:18:09 zynthian startx\[4284\]: (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
Apr 27 15:18:09 zynthian startx\[4284\]: (==) Log file: "/var/log/Xorg.0.log", Time: Mon Apr 27 15:18:09 2026
Apr 27 15:18:09 zynthian startx\[4284\]: (==) Using config directory: "/etc/X11/xorg.conf.d"
Apr 27 15:18:09 zynthian startx\[4284\]: (==) Using system config directory "/usr/share/X11/xorg.conf.d"
Apr 27 15:18:09 zynthian startx\[4292\]: ----------------------------------------------
Apr 27 15:18:09 zynthian startx\[4292\]: Linux Version: bookworm
Apr 27 15:18:09 zynthian startx\[4292\]: Kernel Version: 6.12.75+rpt-rpi-2712
Apr 27 15:18:09 zynthian startx\[4292\]: ZynthianOS Version: 2601
Apr 27 15:18:09 zynthian startx\[4292\]: Virtualization: none
Apr 27 15:18:09 zynthian startx\[4292\]: Hardware Architecture: aarch64
Apr 27 15:18:09 zynthian startx\[4292\]: Hardware Model: Raspberry Pi 5 Model B Rev 1.0
Apr 27 15:18:09 zynthian startx\[4292\]: ----------------------------------------------
Apr 27 15:18:09 zynthian startx\[4321\]: /zynthian/config/img/fb_zynthian_boot.jpg is a 1920x1080 JPEG image, color space Grayscale, 1 comp, Huffman coding.
Apr 27 15:18:09 zynthian startx\[4321\]: Zooming image by 100%...done
Apr 27 15:18:09 zynthian startx\[4321\]: Merging...didn't find evidence of prior run.
Apr 27 15:18:09 zynthian startx\[4321\]: done
Apr 27 15:18:09 zynthian startx\[4321\]: Building XImage...done
Apr 27 15:18:09 zynthian startx\[4323\]: INFO:zynthian_gui_config.<module>: ZYNTHIAN-UI CONFIG ...
Apr 27 15:18:09 zynthian startx\[4323\]: INFO:zynthian_gui_config.<module>: Kit Version: Custom
Apr 27 15:18:09 zynthian startx\[4323\]: INFO:zynthian_gui_config.<module>: Wiring Layout: TOUCH_ONLY
Apr 27 15:18:09 zynthian startx\[4323\]: DEBUG:zynthian_gui_config.<module>: TOUCH NAVIGATION = v5_keypad_left
Apr 27 15:18:10 zynthian startx\[4323\]: DEBUG:PngImagePlugin.call: STREAM b'IHDR' 16 13
Apr 27 15:18:10 zynthian startx\[4323\]: DEBUG:PngImagePlugin.call: STREAM b'bKGD' 41 6
Apr 27 15:18:10 zynthian startx\[4323\]: DEBUG:PngImagePlugin.\_open: b'bKGD' 41 6 (unknown)
Apr 27 15:18:10 zynthian startx\[4323\]: DEBUG:PngImagePlugin.call: STREAM b'pHYs' 59 9
Apr 27 15:18:10 zynthian startx\[4323\]: DEBUG:PngImagePlugin.call: STREAM b'tIME' 80 7
Apr 27 15:18:10 zynthian startx\[4323\]: DEBUG:PngImagePlugin.\_open: b'tIME' 80 7 (unknown)
Apr 27 15:18:10 zynthian startx\[4323\]: DEBUG:PngImagePlugin.call: STREAM b'IDAT' 99 8192
Apr 27 15:18:10 zynthian startx\[4323\]: DEBUG:zynthian_lv2.load_engines: Loaded engine config with timestamp: 1777299384.487595
Apr 27 15:18:11 zynthian startx\[4323\]: Loaded libzynaudioplayer using libsndfile-1.2.0
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_engine_audioplayer.zynthian_engine_audioplayer: Supported Audio Codecs: \['aiff', 'aifc', 'au', 'caf', 'flac', 'mp3', 'vox', 'opus', 'ogg', 'wav'\]
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_main.<module>: STARTING ZYNTHIAN-UI ...
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_state_manager.\__init_\_: Creating state manager
Apr 27 15:18:11 zynthian startx\[4323\]: Started zynmixer_chan
Apr 27 15:18:11 zynthian startx\[4323\]: Started zynmixer_bus
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_chain_manager.\__init_\_: Creating chain manager
Apr 27 15:18:11 zynthian startx\[4323\]: Started libzynseq
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_chain_manager.add_processor: Adding processor 'MX' with ID '-2'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_engine_alsa_mixer.get_controllers_dict: MIXER CTRL LIST: \[''\]
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_chain_manager.add_processor: Adding processor 'TP' with ID '-4'
Apr 27 15:18:11 zynthian startx\[4323\]: Started libzynsmf
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_state_manager.start: Opened temperature sensor '/sys/class/hwmon/hwmon0/temp1_input'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_state_manager.start: Opened undervoltage sensor '/sys/class/hwmon/hwmon4/in0_lcrit_alarm'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_chain_manager.add_chain: ADDED CHAIN 0 => midi_chan=None, zmop_index=None
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_akai_apc_key25_mk2_sooperlooper'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_sinco_smk25_bt'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_arturia_keylab_61_mk2'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_akai_apc_key25'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_akai_apc_key25_sooperlooper'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_launchkey_mini_mk3'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_launchpad_x'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_mackiecontrol'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_behringer_motor'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_riband'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_launchkey_mk4_37'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_akai_midimix'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_akai_mpk_mini_mk3_moder'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_sinco_smk25'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_akai_apc_40_mk2'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_launchpad_pro_mk3'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_teenageengineering_op1'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_launchkey_mini_mk4_37'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_fostex_mixtab'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_duopiano'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_launchpad_pro_mk2'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_akai_mpk_mini_mk3'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_worlde_mini_moder'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_launchpad_mini_mk3'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_korg_nanokontrol2'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_launchpad_mini'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_ctrldev_manager.update_available_drivers: Loaded ctrldev driver class 'zynthian_ctrldev_akai_apc_key25_mk2'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_akai_apc_key25_mk2_sooperlooper' for devices with ID 'APC Key 25 mk2 MIDI 2'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_akai_apc_key25_mk2_sooperlooper' for devices with ID 'APC Key 25 mk2 IN 2'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_sinco_smk25_bt' for devices with ID 'SMK25V2 IN'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_arturia_keylab_61_mk2' for devices with ID 'KeyLab mkII 61 IN 2'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_akai_apc_key25' for devices with ID 'APC Key 25 MIDI 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_akai_apc_key25' for devices with ID 'APC Key 25 IN 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_akai_apc_key25_sooperlooper' for devices with ID 'APC Key 25 MIDI 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_akai_apc_key25_sooperlooper' for devices with ID 'APC Key 25 IN 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_launchkey_mini_mk3' for devices with ID 'Launchkey Mini MK3 IN 2'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_launchpad_x' for devices with ID 'Launchpad X IN 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_mackiecontrol' for devices with ID '\*'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_behringer_motor' for devices with ID 'MOTÖR61 Keyboard IN 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_behringer_motor' for devices with ID 'MOTÖR49 Keyboard IN 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_riband' for devices with ID 'riband Bluetooth'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_launchkey_mk4_37' for devices with ID 'Launchkey MK4 37 DAW In'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_launchkey_mk4_37' for devices with ID 'Launchkey MK4 37 IN 2'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_akai_midimix' for devices with ID 'MIDI Mix IN 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_akai_mpk_mini_mk3_moder' for devices with ID 'MPK mini 3 IN 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_sinco_smk25' for devices with ID 'SINCO IN 2'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_akai_apc_40_mk2' for devices with ID 'APC40 mkII IN 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_launchpad_pro_mk3' for devices with ID 'Launchpad Pro MK3 IN 3'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_teenageengineering_op1' for devices with ID 'OP-1 IN 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_launchkey_mini_mk4_37' for devices with ID 'Launchkey Mini MK4 37 IN 2'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_fostex_mixtab' for devices with ID '\*'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_duopiano' for devices with ID 'GENERAL IN 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_launchpad_pro_mk2' for devices with ID 'Launchpad Pro IN 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_akai_mpk_mini_mk3' for devices with ID 'MPK mini 3 IN 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_worlde_mini_moder' for devices with ID 'WORLDE MINI IN 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_launchpad_mini_mk3' for devices with ID 'Launchpad Mini MK3 IN 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_korg_nanokontrol2' for devices with ID 'nanoKONTROL2 IN 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_launchpad_mini' for devices with ID 'Launchpad Mini IN 1'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_akai_apc_key25_mk2' for devices with ID 'APC Key 25 mk2 MIDI 2'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_ctrldev_manager.update_available_drivers: Found ctrldev driver 'zynthian_ctrldev_akai_apc_key25_mk2' for devices with ID 'APC Key 25 mk2 IN 2'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_autoconnect.init: Initializing 27 slots for MIDI input devices
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_autoconnect.init: Initializing 24 slots for MIDI output devices
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_chain_manager.add_processor: Adding processor 'MR' with ID '-1'
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_autoconnect.midi_autoconnect: Connected MIDI-in device 0: system:midi_capture_1
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_autoconnect.midi_autoconnect: Connected MIDI-in device 1: ttymidi:MIDI_in
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_autoconnect.midi_autoconnect: Connected MIDI-out device 0: system:midi_playback_1
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_autoconnect.midi_autoconnect: Connected MIDI-out device 1: ttymidi:MIDI_out
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_autoconnect.midi_autoconnect: Connected MIDI-out device 2: ZynMaster:midi_in
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_autoconnect.midi_autoconnect: Connected MIDI-out device 3: ZynMidiRouter:seq_in
Apr 27 15:18:11 zynthian startx\[4323\]: WARNING:zynthian_autoconnect.cb_jack_xrun: Jack Audio XRUN! =>count: 1, delay: 31.0us
Apr 27 15:18:11 zynthian startx\[4323\]: WARNING:zynthian_autoconnect.cb_jack_xrun: Jack Audio XRUN! =>count: 2, delay: 34.0us
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:zynthian_chain_manager.add_processor: Adding processor 'AP' with ID '-3'
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:zynthian_state_manager.set_power_save_mode: Power Save Mode: OFF
Apr 27 15:18:11 zynthian startx\[4323\]: DEBUG:selector_events.\__init_\_: Using selector: EpollSelector
Apr 27 15:18:11 zynthian startx\[4323\]: INFO:multitouch.\_run: Starting multitouch on 'ILITEK ILITEK-TP'
Apr 27 15:18:12 zynthian startx\[4323\]: DEBUG:zynthian_gui_brightness_config.get_backlight_sysctrl_fpath: Can't find a display brightness control file
Apr 27 15:18:12 zynthian startx\[4323\]: INFO:zynthian_gui_brightness_config.init_ctrls: Setting LED brightness to 1.0.
Apr 27 15:18:12 zynthian startx\[4323\]: INFO:zynthian_gui.zynswitches_init: INIT 28 ZYNSWITCHES ...
Apr 27 15:18:12 zynthian startx\[4323\]: INFO:zynthian_gui.osc_init: ZYNTHIAN-UI OSC server running in port 1370
Apr 27 15:18:12 zynthian startx\[4323\]: DEBUG:zynthian_gui.prune_screen_history: SCREEN HISTORY => \[\]
Apr 27 15:18:12 zynthian startx\[4323\]: DEBUG:zynthian_gui.prune_screen_history: PRUNE 'loading' FROM SCREEN HISTORY => \[\]
Apr 27 15:18:12 zynthian startx\[4323\]: DEBUG:zynthian_gui.close_screen: CLOSE SCREEN 'loading' => Back to 'root'
Apr 27 15:18:12 zynthian startx\[4323\]: INFO:zynthian_state_manager.load_snapshot: Loading snapshot '/zynthian/zynthian-my-data/snapshots/last_state.zss' ...
Apr 27 15:18:12 zynthian startx\[4323\]: DEBUG:zynthian_gui.prune_screen_history: SCREEN HISTORY => \[\]
Apr 27 15:18:12 zynthian startx\[4323\]: DEBUG:zynthian_gui.prune_screen_history: PRUNE 'mixer' FROM SCREEN HISTORY => \[\]
Apr 27 15:18:12 zynthian startx\[4323\]: INFO:zynthian_processor.get_bank_list: Loaded 1 banks
Apr 27 15:18:12 zynthian startx\[4323\]: INFO:zynthian_processor.get_bank_list: Loaded 1 banks
Apr 27 15:18:12 zynthian startx\[4323\]: INFO:zynthian_processor.get_bank_list: Loaded 0 banks
Apr 27 15:18:12 zynthian startx\[4323\]: INFO:zynthian_processor.get_bank_list: Loaded 5 banks
Apr 27 15:18:13 zynthian startx\[4323\]: DEBUG:zynthian_state_manager.update_thread: \*\*\*\*\*\*\*\*\*\*\*\* CHECKING FOR UPDATES ... \*\*\*\*\*\*\*\*\*\*\*\*
Apr 27 15:18:29 zynthian startx\[4323\]: INFO:multitouch.\_run: Multitouch device ILITEK ILITEK-TP disconnected
**Apr 27 15:18:53 zynthian startx\[4323\]: INFO:multitouch.\_run: Starting multitouch on 'ILITEK ILITEK-TP'**
**Apr 27 15:18:53 zynthian startx\[4323\]: WARNING:multitouch.\_process_touch_events: 'Touch' object has no attribute 'x_root'**
**Apr 27 15:18:53 zynthian startx\[4323\]: WARNING:multitouch.\_process_touch_events: 'Touch' object has no attribute 'x_root'**
Apr 27 15:18:54 zynthian startx\[4323\]: DEBUG:zynthian_gui.prune_screen_history: SCREEN HISTORY => \['mixer'\]
Apr 27 15:18:54 zynthian startx\[4323\]: DEBUG:zynthian_gui.prune_screen_history: PRUNE 'main_menu' FROM SCREEN HISTORY => \['mixer'\]

```

Don’t know if something in the LOG can shed light on the mystery!

All the best 🙂

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