u/Kaedo-

I'm having a strange issue that when I'm launching a game with any other proton versions other than the GE 10-34 I get:

An error occurred while launching this game: Compatibility tool failed

The logs are the following:

shader_cache_temp_dir_d3d12_64/fozpipelinesv6/steamapprun_pipeline_cache".

BCreateHwDeviceContext Nvidia Hardware CUDA ...

BCreateHwDeviceContext Nvidia Hardware CUDA ...

libav: cu->cuInit(0) failed

libav: cu->cuInit(0) failed

libav: -> CUDA_ERROR_NO_DEVICE: no CUDA-capable device is detected

libav: -> CUDA_ERROR_NO_DEVICE: no CUDA-capable device is detected

libav:

libav:

... failed.

BCreateHwDeviceContext AMD Hardware VAAPI ...

libav: Failed to initialise VAAPI connection: -1 (unknown libva error).

libav: Failed to initialise VAAPI connection: -1 (unknown libva error).

... failed.

libav: cu->cuInit(0) failed

libav: cu->cuInit(0) failed

libav: -> CUDA_ERROR_NO_DEVICE: no CUDA-capable device is detected

libav: -> CUDA_ERROR_NO_DEVICE: no CUDA-capable device is detected

libav:

libav:

... failed.

BCreateHwDeviceContext AMD Hardware VAAPI ...

libav: Failed to initialise VAAPI connection: -1 (unknown libva error).

libav: Failed to initialise VAAPI connection: -1 (unknown libva error).

... failed.

src/clientdll/compatmanager.cpp (1279) : Assertion Failed: Tool 4183110 "Steam Linux Runtime 4.0" unsupported version 0.

src/clientdll/compatmanager.cpp (1279) : Assertion Failed: Tool 4183110 "Steam Linux Runtime 4.0" unsupported version 0.

assert_20260505141113_37.dmp[10903]: Uploading dump (out-of-process)

/tmp/dumps/assert_20260505141113_37.dmp

src/clientdll/compatmanager.cpp (1279) : Assertion Failed: Tool 4183110 "Steam Linux Runtime 4.0" unsupported version 0.

src/clientdll/compatmanager.cpp (1279) : Assertion Failed: Tool 4183110 "Steam Linux Runtime 4.0" unsupported version 0

My system specs:

- CachyOS kernel 7.0.3-1-cachyos-bore

- Niri as the WM

- 9800X3D

- RTX 5080 on the 580.159.03 driver

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u/Kaedo- — 10 days ago