Wait, do you have a fully featured zynthian? 'cause I have it and in that hardware everything works. With same march 11th image and updated via webconf. Instead, on cloned RPI 4 without encoders, hifiberry and other proprietary hardware I have zynaddsubfx issue…
It’s not an official kit, but it does use official hardware:
*Raspi 4 (4GB)
*HiFiBerry DAC+
*OzzMaker PiScreen
*All-In-One PCB with encoders
Hi @Jtunes,
ZynAddSubFX is the first and most tested engine. It should work like a charm in the hardware you have. Please, could you send the logs?
Also, you could try the most recent image from today, that should not have the webconf problem:
https://os.zynthian.org/2020-05-12-zynthianos-buster-lite-1.0.0.zip
Regards,
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Hi @jofemodo!
I never thought that my hardware was faulty. I always thought it was a software issue. That being said, thanks for pointing me to the right image. I’ll let you all know when I get around to it.
Hi… I tried the new image (on another card) and webconf issue is gone, but Ui doesn’t come up. Stops at splash screen. If I stop service and restart with zynthian.sh, says “no screens found”. Anyway system is up and probably working… would try to rebuild as soon as possible , but meantime I ask if there is someone else with same issue
ok, solved reflashing card. UI doesn’t have issues. But Before doing anything i opened zynaddsubfx and… same error: endless animated logo, no sound.
But perhaps i found the bug:
INFO:zynthian_engine: Starting Engine ZynAddSubFX
DEBUG:zynthian_engine: Command: /usr/local/bin/zynaddsubfx -r 44100 -b 256 -O jack-multi -I jack -P 6693 -a -U
ERROR:zynthian_engine: Can't start engine ZynAddSubFX => End Of File (EOF). Exception style platform.
<pexpect.pty_spawn.spawn object at 0xae034430>
command: /usr/local/bin/zynaddsubfx
args: ['/usr/local/bin/zynaddsubfx', '-r', '44100', '-b', '256', '-O', 'jack-multi', '-I', 'jack', '-P', '6693', '-a', '-U']
buffer (last 100 chars): b''
before (last 100 chars): b'[INFO] Nio::start()\r\nStarting Audio: JACK-MULTI\r\nzynaddsubfx: jack must have the same sample rate!\r\n'
after: <class 'pexpect.exceptions.EOF'>
Zynaddsubfx starts with 44100 khz
Behringer uca222 setup is configured with 48000.
As reported by debugger, jack and synth must have same sample rate.
Scaled down Berhinger to 44100 kHz on webconf and now it works! 
@Jtunes, can you reproduce this?
If yes, then muted zynaddsubfx issue could be just this.
[edit]
@jofemodo, zynaddsubfx seems to be way too louder than other engines, resulting quite distorted output. I know i can lower volume… but it’s like a high gain signal before reaching master volume…
is more noticeable on arpeggio preset (really fat filters and resonances)
any idea?
regards 
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OK, folks…
I flashed the 2020-05-12 image, then I plugged my Zynthian in without connecting to a router first. I got the ERROR screen. 
Now I have it connected to a router, and I can SSH just fine, but I can’t get past the login screen. 
I’ll keep trying…
[Update]
…and failing…
@jofemodo Should I reflash the image?
I reflashed. But honestly downloaded again too… After that, webconf login worked
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Which image did you download? Was it 2020-05-12, or something else?
Yes the 2020-05-12. Insisted on this one
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I tried reflashing the image I already downloaded. No luck. I’ll download the image again tonight.
Are you sure your putting in the correct password?
Yes, I put the “p” in “raspberry”.
But when I hit enter, it takes me right back to the login screen. And the whole time, my Zynthian is showing the ERROR screen.
Why does this problem keep coming back to haunt us?
@Jtunes what browser are you using to connect to the Zynthian? Some are known to have issue. You could try a different web browser or forceful refresh / clear cache.
Well, wadda ya know… Microsoft Edge worked where Firefox didn’t!
And now I’m a bit frustrated, because I don’t like using Microsoft’s stuff, because they’re probably tracking me…
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Browsers, the last vestige of god only knows coding . . .
Ok, @jofemodo, after that update, I switched my kit to V2, but my encoders don’t work now. The troubles never cease…
I’ll try a software update and see if anything changes.
[UPDATE]
It worked!
Hi @ivanmonterosso, @Jtunes, and maybe others …
I think i hunted the problem that was avoiding ZynAddSubFX to run at 48000. Could you update and test?
Thanks!
2 Likes
@jofemodo It works!
Hang on, let me say that again…
IT WORKS!!!
Alternate Frequency, by Jtunes
1#ZY>Arpeggios/Arpeggio3
2#ZY>Bass/Bass 3 analog
3#LS>SFZ/Drum Machines/Roland TR606
4#ZY>Companion/Metal Tines
I 
you, Fernando, and all that you do for us! Thank you!
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yeesss! switched back audio board to 48 khz ! zynaddsubfx works
3 Likes