Thinkpad X220 Runtime libvulkan Error #195
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hexops/mach#195
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I tried to run the GPU example on my Thinkpad X220 laptop, but I got this error:
(I'm running Arch Linux with Sway)
I'm guessing my laptop is either unsupported (it is pretty old) or I don't understand how the OpenGL fallback is supposed to work. I'll probably just use my desktop for now.
Thanks for filing! From what I can tell Thinkpad X220 has an Intel 3000 chipset, which does not support Vulkan.
The OpenGL fallback should work, however the
gpu/sample currently has a bug where it's not using it. You can still try it out, though, in the othergpu-dawn/sample like this:I'd be curious to hear if that works for you!
This is what I get running the above commands. Looks like its still trying to use vulkan though?
@desttinghim I can't believe I messed this up, the env var is
WGPU_BACKENDnotGPU_BACKENDwhen running from thegpu-dawn/directory, sorry! The correct commands are:Let me know if that works or not
Different error code now:
OK, that part is complaining that you do not have OpenGL 4.5 I believe. I think you would get this by installing the latest mesa version on your system, but if not unfortunately we'd be out of luck here - device may just be too old.
You could check by looking at the output of
glxinfoon your system (you may need to install amesa-utilspackage)Alright, I'm pretty sure the video card is just too old at this point. Thanks for trying anyway!
I appreciate you filing the issue regardless!