AI: The Somnium Files (948740)

Compatibility Report

• Name of the game with compatibility issues: AI: The Somnium Files
• Steam AppID of the game: 948740

System Information

• GPU: AMD Radeon RX Vega 56/64
• Driver/LLVM version: X.Org AMD VEGA10 (DRM 3.35.0, 5.4.0-60-generic, LLVM 11.0.0)
• Kernel version: 5.4.0-60-generic
• Link to full system information report as Gist: here (The laptop is an Acer Predator Helios 500 with AMD hardware.)
• Proton version: Proton Experimental (as of January 15, 2021)

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

On UI-selectable versions of Proton earlier than Proton Experimental (such as 5.13-5), the game hangs on a black screen at launch.

On Proton Experimental (as of the posting of this report), the game runs as expected, except certain areas of the game display something that looks like a TV test screen (see attached screenshots). These areas appear to correspond to places in the game where video files should play.

Reproduction

This issue reproduces consistently on my end; the earliest observable instances are the launch animation and the game's main menu.

steam-948740.log

Start by reviewing the attached steam-948740.log and the compatibility report for AI: The Somnium Files on Proton Experimental. Reproduce the black launch screen on Proton 5.13-5 and the TV test screens where videos should play; done means the game launches and those video areas render correctly.