Enemy Territory: QUAKE Wars Demo 2.0 (10050)

Compatibility Report

• Name of the game with compatibility issues: Enemy Territory: QUAKE Wars Demo 2.0
• Steam AppID of the game: 10050

System Information

• GPU: AMD RX 6600 XT
• Driver/LLVM version: Mesa 21.3.9/12.0.1
• Kernel version: 5.18.15
• Link to full system information report as Gist: https://gist.github.com/AsciiWolf/ef5a5fad21d4b6cfaeda0b85254a3198
• Proton version: 7.0-3

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

Setting antialiasing ingame to anything else than off results in a black window being displayed after loading the game map (connecting to any game).

Reproduction

1. Install Enemy Territory: QUAKE Wars Demo 2.0 using: steam://run/10050
2. Start the game, try running tutorial map and confirm that everything works properly.
3. Set antialiasing in the game options to anything else than the default off value.
4. Restart the game and try running tutorial map again.

Start by reproducing the tutorial-map steps with Enemy Territory: QUAKE Wars Demo 2.0 on Proton 7.0-3, then rerun with PROTON_LOG=1 %command% and inspect the generated Steam AppID 10050 log. Done means identifying enough evidence to locate the antialiasing-related failure; the report names no source files, tests, or code entry point.