Hello @JoveToo, https://gist.github.com/JoveToo/6fc5de394e94b2106f01eb4e57466f97#file-gistfile1-txt-L94-L120 is the section of your runtime diagnostics to focus on. The game's trying to run on your iGPU using mesa, but is failing because mesa currently can not render to a gui session running on the NVIDIA proprietary driver. DRI_PRIME=pci-0000_13_00_0 at https://gist.github.com/JoveToo/6fc5de394e94b2106f01eb4e57466f97#file-gistfile1-txt-L1721 seems like a hint. If you completely close Steam, then run steam from a terminal, does that have an effect?
Hi @kisak-valve, thanks! If I run steam from the terminal everything works fine!
Is there a way I can configure steam to never use the iGPU? It doesn't even have a monitor attached.
That implies that it's the desktop environment listening to PrefersNonDefaultGPU=true in Steam's desktop shortcut and setting DRI_PRIME.
I had some trouble identifying the right Steam.desktop but it indeed contained PrefersNonDefaultGPU=true. Removing that and rebooting solves the issue.
Thank you for the help and Merry Christmas, @kisak-valve!
proton 10.0-3x1 2025-12proton 9.0-4x1 2025-12proton experimentalx1 2025-12PROTON_ENABLE_WAYLAND=1x1 2025-12PROTON_LOG=1x1 2025-12PROTON_USE_WINED3D=1x1 2025-12
Compatibility Report
System Information
I confirm:
Symptoms
Games fails to start. I have tried various settings from the ProtonDB but nothing works.
Reproduction
Just start the game.