GeneralKlipperScreen/docs/Troubleshooting.md

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# Troubleshooting
## First Steps
The first step to troubleshooting any problem is getting the cause of the error.
* Find KlipperScreen.log:
!!! warning "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](img/troubleshooting/logs_mainsail.png) | ![fluidd_logs](img/troubleshooting/logs_fluidd.png)
if you can't find it in the web interface, use sftp to grab the log (for example Filezilla, WinSCP)
Located at `~/printer_data/logs`or in `/tmp/` if the former doesn't exist.
## System logs
If [KlipperScreen.log](#first-steps) doesn't exist:
```sh
systemctl status KlipperScreen
```
or
```sh
journalctl -xe -u KlipperScreen
```
Also the Xorg log where you can find issues with the X server:
```sh
cat /var/log/Xorg.0.log
```
## Screen shows console instead of KlipperScreen
![boot](img/troubleshooting/boot.png)
!!! abstract "If you see this line in the [system logs](#system-logs):"
```sh
xf86OpenConsole: Cannot open virtual console 2 (Permission denied)
```
[Follow this steps](Troubleshooting/VC_ERROR.md)
!!! abstract "If you see this line in the [system logs](#system-logs):"
```sh
xinit[948]: /usr/lib/xorg/Xorg: symbol lookup error: /usr/lib/xorg/modules/drivers/fbturbo_drv.so: undefined symbol: shadowUpdatePackedWeak
```
[Follow this steps](Troubleshooting/FBturbo.md)
!!! abstract "If you see this line in the [system logs](#system-logs):"
```sh
KlipperScreen-start.sh: (EE) no screens found(EE)
```
This is usually not the main cause of the error. [Start by checking the screen](Troubleshooting/Physical_Install.md)
Drivers not installed or misconfigured can cause this too, continue looking the logs for more clues.
!!! abstract "If you see this line in the [system logs](#system-logs):"
```sh
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](Troubleshooting/Framebuffer.md)
If you can't fix it, [try using a desktop distro as described here.](Troubleshooting/Last_resort.md)
If you want to contribute a solution: [Contact](Contact.md)
## 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](Troubleshooting/Physical_Install.md)
## The screen shows colors or 'No signal' when idle
In KliperScreen settings find 'Screen DPMS' and turn it off.
![dpms](img/troubleshooting/dpms.gif)
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](Contact.md)
## Touch issues
[Follow this steps](Troubleshooting/Touch_issues.md)
## Network panel doesn't list WI-FI networks
[Follow this steps](Troubleshooting/Network.md)
## 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](Contact.md)