The game is The Entropy Centre. Midnight Fight Express, which I have finished right before, doesn’t seem to be affected.
Since 2 days ago the game (not Steam) started returning the error:
"A D3D11-compatible GPU (Feature Level 11.0, Shader Model 5.0) is required to run the engine."
I am on LMDE6.
Proton Hotfix or Experimental or 9.0-4 are not working.
Proton 8.0-5 is the first one that works, but with some significant lagging, but I am positive I played the same version of the game using Experimental a few days ago with no lagging and on same Nvidia drivers (535.216.01).
An FPS counter titled VK (I guess from Vulkan) shows when running 8.0, while it didn’t in Experimental.
I have tried resetting the shader precaching in the settings, but nothing changes.
The game was also uninstalled and reinstalled, to no avail.
Seems to be a new requirement for a newer driver for experimental.
Updating the driver manually to the latest compatible from the Nvidia website did the trick.
I just tested it on my PC with Proton 10 and it works (at least on my AMD GPU). My guess is the NVIDIA driver is broken.
Seems to be a new requirement for a newer driver for experimental. Updating the driver manually to the latest compatible from the Nvidia website did the trick.