Screaming Chicken: Ultimate Showdown (1194250)

Compatibility Report

• Name of the game with compatibility issues: Screaming Chicken: Ultimate Showdown
• Steam AppID of the game: 1194250

System Information

• GPU: AMD Custom GPU 0405 (vangogh, LLVM14.0.6, DRM 3.45, 5.13.0-valve36-1-neptune)
• Driver/LLVM version: 4.6 (Compatibility Profile) Mesa 22.2.0 (git-17e5312102)
• Kernel version: 5.13.0-valve36-1-neptune
• Link to full system information report as Gist:
• Proton version: probably Proton 8.0-2? whatever is in used for the Steam Deck stable branch

I confirm:

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

Symptoms

I'm running it on the Steam Deck.

The native resolution works perfectly but if I plug a screen in 1080p the game won't allow me to select 1080p. It proposes 1280x960 instead. This issue can be worked around by selecting the screen resolution 2048x1080 (or anything higher) in Steam's settings (game settings). The game will automatically select 1920x1080 and won't go higher. If you select 4K, it will allow 1440p but not 4K.

The setting "Global illumination" has huge impact on the performances. Even in "Low" setting. So it's best to keep it disabled.

Shadows have big impact on the performances. It's best to disabled it too.

Everything else seems to be running smoothly but I have not tested multiplayer.

Reproduction

Nothing special. Just run the game tutorial.

The report names no repository file, test, or code entry point. Start by reproducing the resolution-selection behavior on the Steam Deck with an external 1080p display, then collect the requested Proton log and compare the behavior across the reported display settings. Done would require identifying a reproducible compatibility cause and defining a verified fix or workaround.