Super Meat Boy (40800)

Compatibility Report

• Name of the game with compatibility issues: Super Meat Boy
• Steam AppID of the game: 40800

System Information

• GPU: Steam Deck's VanGhogh
• Driver/LLVM version: Mesa 22.0.0
• Kernel version: 5.13.0
• Proton version: Proton Experimental

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-40800.zip

Symptoms

Frametimes are hugely inconsistent, going from 12 ms up to 19 ms.

Reproduction

I forced the game to run with Proton Experimental, then installed additional packages using ProtonTricks.
In the terminal: protontricks 40800 d3dcompiler_47 xact (see the MHzBurglar's comment on https://www.protondb.com/app/40800)
Then launch the game. All levels seems to be affected.
This is an intermittent issue but it occurs frequently (at least a few seconds per minute)

Start by reviewing the attached steam-40800.zip report and the reproduction command using Proton Experimental with d3dcompiler_47 and xact. Compare the reported frametimes across affected levels and use the listed system and driver versions as context. Done means identifying and resolving the intermittent frametime spikes, then confirming stable frametimes during gameplay.