prime-select not working since 20220318

English Hardware
#1

After a recent tumbleweed update (20220318, but have since updated to 20220324) my laptop failed to boot to a graphical desktop, dropping me to a console prompt. The most relevant error messages in the logs seemed to be sddm reporting:

Failed to read display number from pipe
Could not start Display server on vt 7

Web searches on this didn’t get me anywhere useful (though I once had this error due to a typo in a file in /etc/X11/xorg.conf.d).- /var/log/Xorg.0.log also repored (and still reports)

     8.590] (WW) Warning, couldn't open module intel
     8.590] (EE) Failed to load module "intel" (module does not exist, 0)

It also at that time reported “failed to initialize Nvidia kernel module”

This is a laptop with both an nvidia and intel graphics. I have nvidia-glG05 installed and I thought I had intel video drivers installed. Checking, it appears xf86-xf86-video-intel is not installed (though kernel-firmware-i915 and libvulkan_intel is…does libvulkan_intel take the place of xf86-video-intel?). I’m pretty sure that previous to this update I was able to prime-select between intel and nvidia successfully…most recently I’d switched to nvidia for a multi-monitor setup. I’m using suse-prime, not using bbswitch or bumblebee.

Running either
prime-select intel
or
prime-select nvidia
and rebooting resulted in the same failure to boot into a graphic mode.

However finally I tried
prime-select unset
and THAT got it to boot successfully into a graphical desktop (Plasma).

Since then (after the update to 20220324) I can run
prime-select intel
or
prime-select nvidia
and it still boots to a graphical desktop but it doesn’t appear to be doing anything since if I run
sudo prime-select get-current
it says

No driver configured.

and it doesn’t put a conf file for either intel or nvidia into /etc/X11/xorg.conf.d (which it did when I was stuck in text mode).
Running inxi -G -c0
produces

Graphics:  Device-1: Intel driver: i915 v: kernel
           Device-2: NVIDIA TU104GLM [Quadro RTX 5000 Mobile / Max-Q] driver: N/A
           Device-3: Luxvisions Innotech Limited HP HD Camera type: USB driver: uvcvideo
           Display: x11 server: X.Org 1.21.1.3 driver: loaded: modesetting unloaded: fbdev resolution: 1920x1080~60Hz
           OpenGL: renderer: Mesa Intel UHD Graphics P630 (CML GT2) v: 4.6 Mesa 22.0.0

and sudo lshw -c video
produces

  *-display UNCLAIMED       
       description: VGA compatible controller
       product: TU104GLM [Quadro RTX 5000 Mobile / Max-Q]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master cap_list
       configuration: latency=0
       resources: memory:e0000000-e0ffffff memory:80000000-8fffffff memory:90000000-91ffffff ioport:3000(size=128) memory:e1080000-e10fffff
  *-display
       description: VGA compatible controller
       product: Intel Corporation
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       logical name: /dev/fb0
       version: 05
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list rom fb
       configuration: depth=32 driver=i915 latency=0 resolution=1920,1080
       resources: irq:152 memory:df000000-dfffffff memory:a0000000-afffffff ioport:4000(size=64) memory:c0000-dffff

Can anyone tell me what is going on?

I think intel is in fact being used, from glxinfo

OpenGL vendor string: Intel
OpenGL renderer string: Mesa Intel(R) UHD Graphics P630 (CML GT2)

Possibly this nvidia driver does not work for my card (see another post about that), but why would prime-select not at least work for intel?

#2

Hi
See you other post, that looks like the nvidia G06 driver isn’t installed…

#3

Thanks, Malcolm.
The question of the right nvida driver aside, what about the behavior of prime-select wrt intel? With prime-select unset I understand it is letting xorg decide, and xorg is apparently choosing intel, but after running prime-select intel and rebooting prime-select get-current still reports “No driver configured.” It also puts no intel conf file into /etc/X11/xorg.conf.d as I believe it used to prior to these updates.

#4

Actually I take that back…I don’t know that it did so before. Checking the snapshot directory before the update, there is a 90-nvidia.conf
(and nvidia was the state I’d been using it in), but I’m not sure about an intel file when prime-selecting intel. From the wiki info I’d expect these files to be in /etc/prime
but there are no conf files in the directory under the old snapshot, so the lack of files being copied into /etc/X11/xorg.conf.d may not be meaningful. However I do still expect prime-select get-current to report the intel driver being used.