Arch Linux

ytelp

Member

Registered: 2024-07-10

Posts: 3

[SOLVED] Frozen screen on GDM startup

Hello,
I’ve been using arch for a while without issues, but on recent reboot Instead of a login screen I’m greeted by a blinking cursor, momentary black screen, and then a frozen cursor. FYI I’m using discrete GPU only on T480, running gnome with X backend as described by https://wiki.archlinux.org/title/NVIDIA_Optimus#GDM. I’ve tried to comment out the two .desktop entries to maybe start with integrated card at least, but the result is the same. I’ve also tried using SDDM, another fail. Downgrading to nvidia 550.90.07-4 nvidia-utils-550.90.07-3 linux-6.9.6.arch1-1 lib32-nvidia-utils-550.90.07-01 also didn’t help. I do have drm_nvidia.modeset=1 set in grub. Keep in mind I’ve had no issues with this setup for a long while. I’d appreciate a tip on how to start with just the integrated gpu too, though obviously I’d like to get the discrete gpu working. Thank you for your help.
Recent journalctl:
http://0x0.st/XMMN.txt

Last edited by ytelp (2024-07-12 08:53:26)

SuperRedstone

Member

From: Italy, Trentino - Alto Adige

Registered: 2024-07-10

Posts: 2

Re: [SOLVED] Frozen screen on GDM startup

Have you tried disabling drm_nvidia.modeset=1?

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ytelp

Member

Registered: 2024-07-10

Posts: 3

Re: [SOLVED] Frozen screen on GDM startup

No combination of nvidia_drm.modeset=1 and nvidia_drm.fbdev=1 being on or off in grub kernel parameters seems to change anything

SuperRedstone

Member

From: Italy, Trentino - Alto Adige

Registered: 2024-07-10

Posts: 2

Re: [SOLVED] Frozen screen on GDM startup

Try using the open source drivers instead (nouveau)

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seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,939

Re: [SOLVED] Frozen screen on GDM startup

You're running GDM on X11

Jul 10 12:02:29 tta /usr/lib/gdm-x-session[882]: (==) Using config file: "/etc/X11/xorg.conf"

remove  that file.

Jul 10 12:02:29 tta /usr/lib/gdm-x-session[882]: (--) PCI: (0@0:2:0) 8086:5917:17aa:225e rev 7, Mem @ 0xeb000000/16777216, 0x80000000/268435456, I/O @ 0x0000e000/64, BIOS @ 0x????????/131072
Jul 10 12:02:29 tta /usr/lib/gdm-x-session[882]: (--) PCI:*(1@0:0:0) 10de:1d10:17aa:225e rev 161, Mem @ 0xec000000/16777216, 0x90000000/268435456, 0xa0000000/33554432, I/O @ 0x0000d000/128
Jul 10 12:02:29 tta /usr/lib/gdm-x-session[882]: (II) NVIDIA(0): Setting mode "NULL"

You've a hybrid graphics system and via the static config force the server to run on the nvidia chip, but there's no output attached to that.

Have you tried disabling drm_nvidia.modeset=1?

Do you mind to explain why you think this could be an even remotely good idea?

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ytelp

Member

Registered: 2024-07-10

Posts: 3

Re: [SOLVED] Frozen screen on GDM startup

Thank you, deleting the file worked. I was able to log in, update the system and still successfully restart. Any idea how that file got generated? I’m definitely not above just doing something dumb without understanding it and then forgetting about it.

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,223

Re: [SOLVED] Frozen screen on GDM startup

Main causes for this is running nvidia-xconfig or pressing the logically equivalent "generate xorg configuration" button in nvidia-settings