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Troubleshooting

First Steps

The first step to troubleshooting any problem is getting the cause of the error.

  • Find KlipperScreen.log:

Important

This log file should be provided if you ask for support.

Depending on your setup the file could be accessible from the web interface alongside other logs

Mainsail Fluidd
mainsail_logs fluidd_logs

if you can't find it in the web interface, use sftp to grab the log (for example Filezilla, WinSCP) Located at ~/printer_data/logsor in /tmp/ if the former doesn't exist.

System logs

If KlipperScreen.log doesn't exist: 

systemctl status KlipperScreen
or 
journalctl -xe -u KlipperScreen

Also the Xorg log where you can find issues with the X server: 

cat /var/log/Xorg.0.log

Screen shows console instead of KlipperScreen

boot

If you see this line in the system logs:

xf86OpenConsole: Cannot open virtual console 2 (Permission denied)
Follow this steps

If you see this line in the system logs:

xinit[948]: /usr/lib/xorg/Xorg: symbol lookup error: /usr/lib/xorg/modules/drivers/fbturbo_drv.so: undefined symbol: shadowUpdatePackedWeak
Follow this steps

If you see this line in the system logs:

KlipperScreen-start.sh: (EE) no screens found(EE)
This is usually not the main cause of the error. Start by checking the screen

Drivers not installed or misconfigured can cause this too, continue looking the logs for more clues.

If you see this line in the system logs:

modprobe: FATAL: Module g2d_23 not found in directory /lib/modules/6.1.21-v8+
This error is common on RaspberryOS when using FBturbo and it's not a related issue.

Maybe it's the wrong framebuffer

If you can't fix it, try using a desktop distro as described here.

If you want to contribute a solution: Contact

Screen is always white / black or No signal

If the screen never shows the console even during startup, Then it's typically an improperly installed screen.

Follow this steps

The screen shows colors or 'No signal' when idle

In KliperScreen settings find 'Screen DPMS' and turn it off.

dpms

Your screen doesn't seem to support turning off via software.

KlipperScreen will enable an internal screensaver to make it all black, and hopefully avoid burn-in. If you find a way of turning it off and you want to share it: Contact

Touch issues

Follow this steps

Network panel doesn't list WI-FI networks

Follow this steps

OctoPrint

KlipperScreen was never intended to be used with OctoPrint, and there is no support for it.

Other issues

If you found an issue not listed here, or can't make it work, please provide all the log files a description of your hw, and a description of the issue when asking for support