Segmentation fault

[AdisonCavani]

I have installed fastfetch from AUR on WSL2 (ArchLinux) and I'm getting "segmentation fault".
Image

[LinusDierheimer]

Its hard to tell where the problem is just from the image, as fastfetch is multi threaded and any of those threads may segfault. Use fastfetch --multithreading false and tell me where it does stop now.

[AdisonCavani]

error: XDG_RUNTIME_DIR not set in the environment.
[1] 4258 segmentation fault fastfetch --multithreading false

[LinusDierheimer]

This is more complicated as it looks, as i never use XDG_RUNTIME_DIR. The question where it stops remains.

[LinusDierheimer]

This seems to be something specific with your setup, XDG_RUNTIME_DIR= fastfetch executes totally normal on my system, as it should. I don't have Windows installed so i can't test in WSL2. Without more information from you i can't do anything.

[AdisonCavani]

This is how it looks on my WSL2

[AdisonCavani]

After adding:

export XDG_RUNTIME_DIR=/some/directory/you/specify 
export RUNLEVEL=3

to .zshrc,
XDG_RUNTIME_DIR not set in the environment is no longer visible, but I'm getting another error:

[LinusDierheimer]

Resolution seems to be the problem. Fastfetch first tries to use on of the libraries in specified order:

• libwayland-client.so
• libXrandr.so
• libX11.so

Most probably you have one of the X11 libraries installed as a dependency, but no X Server running. This isn't a problem on linux, as i have implemented and tested this scenario, but maybe WSL2 behaves different. Can you look which of those libraries are present?

If resolution detection fails for all three, fastfetch falls back to scanning /sys/class/drm/*/modes itself. But this surely doesn't need XDG_RUNTIME_DIR, so the error is most probably in some X Configuration.

[AdisonCavani]

I've got this three libraries installed, but I don't have got /sys/class/drm/*modes:

[LinusDierheimer]

I assume you are compiling for yourself, so this shouldn't be much of a problem:

Go to the bottom of src/modules/resolution.c. You'll find the following function there:

void ffPrintResolution(FFinstance* instance)
{
    if(
        printResolutionWaylandBackend(instance) ||
        printResolutionXrandrBackend(instance) ||
        printResolutionX11Backend(instance)
    ) return;

    printResolutionDRMBackend(instance);
}

Each printResolution* line calls a resolution implementation. Use comments (start the line with //) to disable them one by one. This way you can find out which implementation fails. Sorry for the extra work.

[AdisonCavani]

After commenting out first printResolution* should I uncomment first, and comment second or should I comment first, comment second and comment third at the end?

[LinusDierheimer]

Keep the previous line commented, so it surely starts with the implementation to test.

[AdisonCavani]

First commented:

Second commented:

Removed if statement:

[AdisonCavani]

Previously I was using a AUR package, not compiling myself

[LinusDierheimer]

Hot guess, but replace the DRM line with a puts("Would use DRM");, leaving the if as is.

[AdisonCavani]