Well, I tried out Proton-Experimental Bleeding-Edge and it worked again. Maybe the 2025-11-26 Proton Experimental wasn't installed until after I last played the game yesterday or something like that. I will report on the Proton issues.
proton experimentalx2 2025-11ge-proton10-25x1 2025-11
I don't have much confidence that this is a VKD3D-Proton problem but I want to ask.
Today, Cyberpunk suddenly stopped running, and consistently crashes inside the nvidia driver. Everything worked yesterday, and I have verified that no relevant system level packages updates took place since the last time I ran the game. This is the same nvidia driver, kernel, mesa, etc that worked yesterday.
I have tried all the following:
I am at a loss.
Software information
Cyberpunk 2077 - Patch 2.31
System information
Log files
steam-1091500.log