protonscr

[BUG] Proton has shader errors unless ran with X11 once

steamclosed
ValveSoftware/steam-for-linux#11670 · opened 2025-01-18 by zezba9000 · updated 2025-01-19 · 1 comments · github
Zzezba9000 2025-01-18 github

So I've seen this issue happen on multiple systems. Where Proton has shader errors unless Steam is invoked under X11 once with xstart steam.
After doing this I never have to do it again and Steam games like "Limbo" start working with Proton without issues.

The devices I've seen this on are.

  • System76 Pangolin (AMD Ryzen 7 7735U) laptop running PopOS 22.04
  • MSI-Claw: custom Arch distro I'm making
  • Some other AMD devices using ChimeraOS

This is an incredibly odd bug. I'm guessing given Steams history with X11 its not generating some config if only ran under Wayland.

Kkisak-valve maintainer 2025-01-19 github

Upstream links