Compatibility Report

• Name of the game with compatibility issues: Kingdom Come: Deliverance II
• Steam AppID of the game: 1771300

System Information

• GPU: Nvidia RTX 5070 Ti
• Video driver version: 580.95.05 (also tested 580.82.09)
• Kernel version: Linux 6.17.3-arch2-1
• Link to full system information report as Gist: System Info Runtime Report
• Proton version: Proton Experimental, (also Proton Hotfix, Proton 9.0 - 4, Proton-GE 10-21)

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

When exiting the game at Maleshov, it is supposed to play a cutscene, fade to black, and fade into a new cutscene. I get the first cutscene, a fade to black (followed by a ~2 second freeze of any video on my pc, e.g. a youtube video playing on my second monitor), and then just that same black screen for the entirety of the session. At this point there is nothing to do and I have to close the game. Skipping the cutscene before it has finished works and just bring you right back in the game. Seems like it just breaks on the cutscene transition.

Reproduction

Just exit the gate at Maleshov after clearing the guards and signalling Capon to come down. Do not skip the cutscene

Troubleshooting attempted

• Verified game files
• Switched Proton versions (Experimental, Hotfix, 9.0, GE 10-21)
• Cleared shadercache + rebuilt prefix
• Tried both driver versions 580.95 ↔ 580.82.09
• Disabled NVAPI (DXVK_ENABLE_NVAPI=0)
• Enabled PROTON_MEDIA_USE_GST=1

One exception that kind of fixed it (but made the game unplayable), is forcing DX11 with PROTON_USE_DXVK=1 DXVK_ASYNC=1 %command% -dx11. This gave me a black screen, but by blindly clicking and moving to the gate, I managed to start the cutscene and by the audio of the clips I heard that the second clip started playing, so it must be something with DX12