# 'Silent' boot

**URL:** <https://discourse.zynthian.org/t/silent-boot/11093>\
**Category:** Software\
**Created:** [February 20, 2025, 7:56pm UTC](https://discourse.zynthian.org/t/silent-boot/11093 "2025-02-20T19:56:10Z")\
**Posts on this page:** 12\
**Page:** 1

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**Author:** ![Rotil66](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/r/cab0a1/32.png) [@Rotil66](https://discourse.zynthian.org/u/Rotil66)\
**Post date:** [February 20, 2025, 7:56pm UTC](https://discourse.zynthian.org/t/silent-boot/11093/1 "2025-02-20T19:56:10Z")

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Hi All,

It’s not a big deal but it would be a nice to have…  
Is there a way to boot Zynthian without all these codelines flying by  
before showing the actual bootscreen…

Thanks

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**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:** [February 20, 2025, 8:26pm UTC](https://discourse.zynthian.org/t/silent-boot/11093/2 "2025-02-20T20:26:14Z")

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This is the default for V4 & V5, but boot log is enabled for “DIY” kits to help with diagnostics.  
You can change it easily.

Regards

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**Author:** ![Rotil66](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/r/cab0a1/32.png) [@Rotil66](https://discourse.zynthian.org/u/Rotil66)\
**Post date:** [February 20, 2025, 8:40pm UTC](https://discourse.zynthian.org/t/silent-boot/11093/3 "2025-02-20T20:40:19Z")

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I unterstand the use for it. But where can I change this. In the webUi?

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**Author:** ![Rotil66](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/r/cab0a1/32.png) [@Rotil66](https://discourse.zynthian.org/u/Rotil66)\
**Post date:** [February 25, 2025, 4:23pm UTC](https://discourse.zynthian.org/t/silent-boot/11093/4 "2025-02-25T16:23:58Z")

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Found IT !!!

Thanks

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<div class="post-metadata">

**Author:** ![Rotil66](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/r/cab0a1/32.png) [@Rotil66](https://discourse.zynthian.org/u/Rotil66)\
**Post date:** [February 25, 2025, 7:06pm UTC](https://discourse.zynthian.org/t/silent-boot/11093/5 "2025-02-25T19:06:32Z")

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Unfortunately the changed setting in the Cmdline.txt are overwriten to original coldboot.  
So the silent boot is not permanent. I see the same thning happening when changing the bootscreen/picture

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**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:** [February 25, 2025, 8:36pm UTC](https://discourse.zynthian.org/t/silent-boot/11093/6 "2025-02-25T20:36:30Z")

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You have to do this modifications from the webconf, @Rotil66 .

Look into the hardware-\>options submenu.

It’s commented in the wiki:

[https://wiki.zynthian.org/index.php/Web\_Configuration\_User\_Guide](https://wiki.zynthian.org/index.php/Web_Configuration_User_Guide)

=\>Section 4.5

Regards

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<div class="post-metadata">

**Author:** ![Rotil66](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/r/cab0a1/32.png) [@Rotil66](https://discourse.zynthian.org/u/Rotil66)\
**Post date:** [February 25, 2025, 8:51pm UTC](https://discourse.zynthian.org/t/silent-boot/11093/7 "2025-02-25T20:51:09Z")

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Ok thanks, will take a look

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<div class="post-metadata">

**Author:** ![Rotil66](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/r/cab0a1/32.png) [@Rotil66](https://discourse.zynthian.org/u/Rotil66)\
**Post date:** [February 25, 2025, 9:19pm UTC](https://discourse.zynthian.org/t/silent-boot/11093/8 "2025-02-25T21:19:16Z")

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Is there any info on how to use this custom config/boot option.  
Just entering the command is not working

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**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:** [February 25, 2025, 9:51pm UTC](https://discourse.zynthian.org/t/silent-boot/11093/9 "2025-02-25T21:51:54Z")

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What do you enter? What is the result in the config file?

Regards

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<div class="post-metadata">

**Author:** ![Rotil66](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/r/cab0a1/32.png) [@Rotil66](https://discourse.zynthian.org/u/Rotil66)\
**Post date:** [February 25, 2025, 10:17pm UTC](https://discourse.zynthian.org/t/silent-boot/11093/10 "2025-02-25T22:17:55Z")

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To get a silent boot I have to change  
console=tt1 to console=tt3 in the cmdline.txt

As far as I understand for the info on the web.  
This works but is not lasting after a coldboot.

Also I would like to have my own startup picture. I can change it but this is also not lasting after a coldboot.

the last thing which obviously isn’t that easy, is that i can’t get a good working display.  
At the moment I have a 5" 1024x600 screen.  
But the touchoverlay is off and probably on 800\*600.  
sorry for the many questions

Any tip on how I can do these things??

thanks!!!

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**Author:** ![fussl](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/f/d07c76/32.png) [@fussl](https://discourse.zynthian.org/u/fussl)\
**Post date:** [February 26, 2025, 6:52pm UTC](https://discourse.zynthian.org/t/silent-boot/11093/11 "2025-02-26T18:52:07Z")

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If it is an HDMI screen, then you can put into the bootloader configuration `HDMI_DELAY=8` or a different number than 8, which you may have to try out.  
This example begins the output of the HDMI video signal 8 seconds after the start/restart of the Pi, which then is realtime and not delayed.  
See documentation here [https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#HDMI\_DELAY](https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#HDMI_DELAY)  
And how to mod the eeprom bootloader config:  
[Does this "fake numa trick" work on Zynthian? - #5 by fussl](https://discourse.zynthian.org/t/does-this-fake-numa-trick-work-on-zynthian/11086/5)

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<div class="post-metadata">

**Author:** ![Rotil66](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/r/cab0a1/32.png) [@Rotil66](https://discourse.zynthian.org/u/Rotil66)\
**Post date:** [February 26, 2025, 7:10pm UTC](https://discourse.zynthian.org/t/silent-boot/11093/12 "2025-02-26T19:10:07Z")

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thanks, but it’s a DSI display  
so I assume this doesn’t apply to this screen.