Arch Linux

noahbald

Member

Registered: 2024-08-17

Posts: 4

[SOLVED] Unable to start gdm after changing some NVIDIA configuration

Hello all, in a little trouble after trying to setup some multi-monitor stuff on my laptop.
I was running through the NVIDIA page on the wiki and tried running `nvidia-settings` and maybe edited some xorg stuff as well.

When I boot at the moment into Arch is my bios splash appears thrice before untimately freezing - without the splash ever going away.
If I launch via tty instead, I'm able to use my terminal, and it seems that when I run `systemctl start gdm` the system freezes on a blank screen with a single "_".

I've tried the following so far without too much luck.
- Removing the generated file at ~/.nvidia-settings-rc
- Renaming /etc/X11/xorg.conf.d/ to /etc/X11/xorg.conf.d.bak/ as to remove any possible config issues there
- Running `journalctl -u gdm` seems to show an error from gdm as "Gdm: on_display_added: assertion 'GDM_IS_REMOVE_DISPLAY (display)' failed"
- Try reinstalling gtm with `sudo pacman -Rns gdm; sudo pacman -S gdm; systemctl start gdm`

Hope someone can help

Last edited by noahbald (2024-08-18 08:30:35)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,828

Re: [SOLVED] Unable to start gdm after changing some NVIDIA configuration

Please post your complete system journal for the boot:

sudo journalctl -b | curl -F 'file=@-' 0x0.st

Please post your Xorg log, https://wiki.archlinux.org/title/Xorg#General

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How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

noahbald

Member

Registered: 2024-08-17

Posts: 4

Re: [SOLVED] Unable to start gdm after changing some NVIDIA configuration

That command output gave me http://0x0.st/X4dl.txt

Similarly, uploading Xorg.0.log is http://0x0.st/X4d0.txt

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Edit:

Sorry, I realise now that I may have to do this from a failing boot - those logs are without launching gdm.
Here’s some recent logs launching booting normally and switching to tty via ctrl-altf6

- Journal: http://0x0.st/X45Q.txt
- Xorg.0.log: http://0x0.st/X451.txt

Last edited by noahbald (2024-08-18 05:50:35)

noahbald

Member

Registered: 2024-08-17

Posts: 4

Re: [SOLVED] Unable to start gdm after changing some NVIDIA configuration

Fixed by removing the config generated by nvidia-settings as /etc/X11/xorg.conf

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,828

Re: [SOLVED] Unable to start gdm after changing some NVIDIA configuration

\o/
Please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.

Generally avoid creating static sterver confings regardless how and only augment the autodetection process if you actually want to adjust it.

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How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

noahbald

Member

Registered: 2024-08-17

Posts: 4

Re: [SOLVED] Unable to start gdm after changing some NVIDIA configuration

Thanks, I didn’t even realise nvidia-settings would do this, but glad I know to check xorg.conf in future.