Compatibility Report

• Name of the game with compatibility issues: SIGNALIS
• Steam AppID of the game: 1262350

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:

• [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.

Symptoms

I'm running it on the Steam Deck.

Most of the game works perfectly except for the 3D cinematic sequences (which are interactive for some reason). Some textures are blinking in black in many places, I think it's the typical shader issue.

Reproduction

Play the game until you reach the second 3D cinematic sequence (I think the first one in the snow does not have that issue because of the heavy fog but all the others have it).