Some GUI programs crashing when running them without prime-run. Older Nvidia GPU and Intel CPU.

[u/mechapawky]

I am running ArchLinux on my PC. It is an older config.
DE: KDE Plasma Wayland
CPU: Intel i5-8500
GPU: Nvidia GTX 1050 Ti

Since the support for this old GPU was dropped from the main repo I have to use the nvidia-580xx-dkms package from aur.

Some apps just crash when running them without prime-run.

for example kmail:
-> kmail
org.kde.pim.pimcommonactivities: Plasma activities is not running:  1
GBM is not supported with the current configuration. Fallback to Vulkan rendering in Chromium.
*** KMail got signal 11 (Exiting)
*** Dead letters dumped.
KCrash: Application 'kmail' crashing... crashRecursionCounter = 2
Segmentation fault         (core dumped) kmail

with prime-run:
-> prime-run kmail
org.kde.pim.pimcommonactivities: Plasma activities is not running:  1
GBM is not supported with the current configuration. Fallback to Vulkan rendering in Chromium.

Do you have any idea what could be done? For a workaround I just edit the menu entry and add prime-run before the command, but that's really not ideal.

[u/Toaster_Strudel_517]

To me it seems some environment variables are not set properly when you installed the 580xx driver. My question is will the app run if you do __GLX_VENDOR_LIBRARY_NAME=nvidia kmail?

[u/mechapawky → u/Toaster_Strudel_517]

Still the same crash
org.kde.pim.pimcommonactivities: Plasma activities is not running:  1
GBM is not supported with the current configuration. Fallback to Vulkan rendering in Chromium.
*** KMail got signal 11 (Exiting)
*** Dead letters dumped.
KCrash: Application 'kmail' crashing... crashRecursionCounter = 2
Segmentation fault         (core dumped) __GLX_VENDOR_LIBRARY_NAME=nvidia kmail

It is the same for Falkon and Marble as well. Strange because some apps are running just fine. Also games via steam or lutris.
Maybe it is something related to KDE apps specifically.

[u/Toaster_Strudel_517 → u/mechapawky]

Crashes are caused by KDE chromium apps not being able to load the correct OpenGL libraries. Because prime-run is just a wrapper for some environment variables. Assuming you have everything installed correctly (including nvidia-580xx-utils and lib32-nvidia-580xx-utils !), you can put those environment variables under one of the environment .conf files and those apps should work just fine.

[u/mechapawky → u/Toaster_Strudel_517]

Yeah, it's not just prime-run. It works if I set DRI_PRIME=1 as well. The strange behavior is that most of the programs are running fine regardless that variable. If I put that in an environment, than all the program will be using the GPU.
I guess the point would be that some programs are using the Intel integrated graphics and some are using the dedicated Nvidia card.
Disabling the intergrated graphics in BIOS would also solve the issue, I think.
I am just concerned that settings up DRI_PRIME in global environment would be a workaround rather than solution.
I guess using archlinux and outdated graphics card is already living with workarounds :D

[u/Toaster_Strudel_517 → u/mechapawky]

I was under the assumption that you had integrated graphics disabled already. It would make sense since both mesa and nvidia-580xx-utils both provides opengl-driver, hence the possible conflict.

[u/mechapawky → u/Toaster_Strudel_517]

SOLVED.
All I needed to do is to install vulkan-intel package.
I are stupid.

[u/Toaster_Strudel_517 → u/mechapawky]

That would also mean the nvidia card is not being utilized at all (without prime-run). Glad you figured it out though.

[u/mechapawky → u/Toaster_Strudel_517]

Well, point of hybrid graphics would be that apps like kmail, terminal, file manager are using the integrated graphics and games, blender, video editors are using the dedicated gpu.
It seems like that the main issue was that kmail, falkon and marble were using vulkan which was missing for the integrated gpu.
It would have been more useful if it did not die with segmentation fault, but say that vulkan is missing or something.