Lightdm does not start

Support Graphics & Display
1

Hello,

I recently removed an old graphics card from my PC (Geforce GTX670) and installed an AMD Ryzen 5 5600G with internal GPU instead.

After uninstalling the NVIDIA driver, I installed the AMD driver. Since then, lightdm sometimes doesn’t start anymore and I have to go to the console and type sudo systemctl start lightdm.service

This is the output of

$ sudo systemctl status lightdm.service

× lightdm.service - Light Display Manager
     Loaded: loaded (/usr/lib/systemd/system/lightdm.service; enabled; vendor preset: disabled)
     Active: failed (Result: exit-code) since Mon 2022-04-04 15:12:30 CEST; 3h 35min ago
       Docs: man:lightdm(1)
    Process: 928 ExecStart=/usr/bin/lightdm (code=exited, status=1/FAILURE)
   Main PID: 928 (code=exited, status=1/FAILURE)
        CPU: 43ms

Apr 04 15:12:30 Waldorf systemd[1]: lightdm.service: Scheduled restart job, restart counter is at 5.
Apr 04 15:12:30 Waldorf systemd[1]: Stopped Light Display Manager.
Apr 04 15:12:30 Waldorf systemd[1]: lightdm.service: Start request repeated too quickly.
Apr 04 15:12:30 Waldorf systemd[1]: lightdm.service: Failed with result 'exit-code'.
Apr 04 15:12:30 Waldorf systemd[1]: Failed to start Light Display Manager.

Where else can I look for information? What can go wrong here?

Here is the config:

$ lightdm --show-config
   [Seat:*]
A  greeter-session=lightdm-slick-greeter
A  user-session=cinnamon
A  session-wrapper=/etc/lightdm/Xsession

   [LightDM]
A  run-directory=/run/lightdm

   [VNCServer]
A  user-session=cinnamon
A  session-wrapper=/etc/lightdm/Xsession

Sources:
A  /etc/lightdm/lightdm.conf
2

OK, i found this: Failed to start lightdm on boot - can't log in to system! - #4 by py-mpixel

I check this and give a response

EDIT: OK, thats it … it works!

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