Wayland option missing from login, nvidia gpu

[seeji]

Hello,

I’ve been troubleshooting why Wayland is missing from the Gnome login screen. When going to the password screen, button in the lower right corner for selecting X/Wayland is missing completely, which I assume is due to Wayland not being enabled. I did check that it’s not hidden due to resolution, or that its not placed somewhere else

Currently only clue I have is following error from dmesg:

[  256.251155] [drm:drm_new_set_master] *ERROR* [nvidia-drm] [GPU ID 0x00000d00] Failed to grab modeset ownership

I have checked/tried following:

Enabling nvidia-resume, -suspend and -hibernate services. (Noticed that these are required in 61-gdm.rules)

All of these show similar info in systemctl status:

nvidia-resume.service - NVIDIA system resume actions
     Loaded: loaded (/usr/lib/systemd/system/nvidia-resume.service; enabled; preset: disabled)
     Active: inactive (dead)

Added nvidia drivers to dracut and ran reinstall-kernels:

>cat /etc/dracut.conf.d/nvidia.conf
force_drivers+=" nvidia nvidia_modeset nvidia_uvm nvidia_drm "

kernel cmdline is:

>cat /etc/kernel/cmdline
nvme_load=YES nowatchdog rw rd.luks.uuid=111498cd-6a06-45d7-bd02-88220eb3bbea root=/dev/mapper/luks-111498cd-6a06-45d7-bd02-88220eb3bbea nvidia-drm.modeset=1 amd_pstate=guided

This is fresh install of EOS (Forgive me for I have sinned - I spent last 2 weeks on Gentoo instead of EOS )
Installation was done on newest ISO with Online installation and selecting Gnome DE.

Following packages are installed

xorg-xwayland libxcb egl-wayland

I have previously had Wayland working, I just havent used it much due to problems with Nvidia. I noticed Wayland missing as I was planning to test it out if the nvidia support has changed from the last time.

Any ideas?

Inxi: https://0x0.st/H3Bs.txt
Latest dmesg: https://pastebin.com/LKdtqRJQ

[joekamprad]

ln -s /dev/null /etc/udev/rules.d/61-gdm.rules as root may be still needed.
https://wiki.archlinux.org/title/GDM

Also it says newer drivers does not need that anymore…

I have gnome Nvidia Wayland running on a NVIDIA GA106 [GeForce RTX 3060 Lite Hash Rate]

[joekamprad]

@seeji

Latest dmesg: https://pastebin.com/LKdtqRJQ

[ 256.251155] [drm:drm_new_set_master] *ERROR* [nvidia-drm] [GPU ID 0x00000d00] Failed to grab modeset ownership

I do not use the systemd services for nvidia and i do not have the modules added to initramfs image only using the drm modesetting parameter

[seeji]

Thanks!

>echo $XDG_SESSION_TYPE
wayland

That ln enabled Wayland on login screen, can also confirm Wayland to be working with this change.

I noticed that ln in docs before but was hesitant to try it due to the note newer drivers not needing it anymore and I was unsure about the possible side effects of mucking about with that file. Combined with previous dmesg error about modesetting and Wayland requiring modesetting I was set on that the problem must be somewhere else.

For future readers:
dmesg error about Nvidia failing to grab modeset ownership can possibly be a red herring. The following may still be needed:

sudo ln -s /dev/null /etc/udev/rules.d/61-gdm.rules

[joekamprad]

i remember that i was having the same issue when setting up some times ago…

[seeji]

Noted.

Before this I tried enabling Wayland without including nvidia drivers in Dracut. I added those as part of troubleshooting. Will try later with them removed. For systemd services: installing nvidia drivers had a notice that enabling nvidia-resume might be needed. Reading 61-gdm.rules seemed to test for those services, so I enabled them as part of troubleshooting.

[joekamprad]

if you need resume and others you will may need to enable these services… but you do not need them for wayland to work.