protonscr

Mortal Shell II

protonopen appid 2584270Game compatibility - Unofficial
ValveSoftware/Proton#10121 · opened 2026-09-05 by neon-grim · updated 2026-09-06 · 2 comments · github · game page · search this game
Nneon-grim 2026-09-05 github

Compatibility Report

  • Name of the game with compatibility issues: Mortal Shell 2
  • Steam AppID of the game: 2584270

System Information

  • GPU: RX 7900 XTX
  • Video driver version: Mesa 26.2.1
  • Kernel version: 7.2.2
  • Link to full system information report as Gist: Gist
  • Proton version: Experimental, GE-Proton 11-5 & 11-6

I confirm:

  • [x] that I haven't found an existing compatibility report for this game.
  • [x] that I have checked whether there are updates for my system available.

steam-2584270.log
Crash_Mortal_Shell_2_Logs.txt

Symptoms

Game crashes, taking DE / Compositor after 10-30min of play time. Streaming through discord seems to speed up the process. Crash is caused by a amdgpu ring gfx_0.0.0 time out. I've tested with and without overdrive active.

I've been doing a bit of testing and the issue seems to come from the FSR4 upgrade. It does not matter if its done through ge proton or optiscaler, the game crashes after a certain period of time has passed.

The game still appears to crash without the fsr4 upgrade, it just takes a lot longer now. I crashed only after several hours of gaming.

Reproduction

  1. Boot up the game
  2. Play for 10-30 min
  3. Game should crash after a while
Kkisak-valve maintainer 2026-09-05 github

Hello @neon-grim, try setting the game's launch options to RADV_DEBUG=single_queue %command as a workaround (from https://gitlab.freedesktop.org/mesa/mesa/-/work_items/16158).

Nneon-grim 2026-09-05 github

Reply to https://github.com/ValveSoftware/Proton/issues/10121#issuecomment-5551891962

Is this specifically for FSR4 or just the game? I'll give it a try and see what the results are.

Edit: Still leads to crashes after a certain while. Though it takes much longer than before.

Edit2: Seems that running RADV_DEBUG=nocompute VKD3D_CONFIG=single_queue solved the crashing for now.

Launch options