Compatibility Report

• Name of the game with compatibility issues: Gabriel Knight 3: Blood of the Sacred, Blood of the Damned
• Steam AppID of the game: 497360

System Information

• GPU: AMD Radeon RX 5600 XT
• Driver/LLVM version: Mesa 21.3.9
• Kernel version: 5.18.11-100.fc35.x86_64
• Link to full system information report as Gist: https://gist.github.com/joshas/fbbe8949478e67d552888c4bacca35f0
• Proton version: 7.0-3

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-497360.zip

Symptoms

1. Game does not start without physical CD/DVD drive, stops with "Please Insert CD 1" message. As a workaround I mounted an ISO with Linux installer (any other CD image probably works too). Interesting enough, that subsequent launches after reboot when no ISO is mounted, do not require CD drive. There might be some setting set by the game after first launch, but I have not looked into it. Same issue on Windows.
2. Software and DirectDraw HAL renderers produce very dark images. Issue seems to be similar to one observed in #798 and #623 . Changing "Gamma" setting in game options makes things even worse. Some visual artifacts can be observed too, e.g. alternating black squares in bottom right corner.
   
   
   
   My workaround was to use dgVoodoo2, which renders all graphics correctly.
3. AVI videos compressed with "Microsoft RLE" codec does not play correctly, "TV test screen" is displayed instead. Intro video works correctly, as it uses different, "Cinepak video" codec.

Reproduction

Issue 1 can be reproduced right away after first launch of the game. Issue 2 appears after skipping intro and starting to play. To reproduce issue 3 you need to play for quite a while to reach point where AVI videos for fingerprints and map are used in "SIDNEY".

I've completed the game using mounted ISO method to bypass "Please Insert CD 1" error message and dgVoodoo2 to solve graphical issues. Game froze only once.