Seems this is the fix for Nvidia cards: PROTON_HIDE_NVIDIA_GPU=1 %command% VRAM leak seems fixed with this.

> Replying to https://github.com/ValveSoftware/Proton/issues/5285#issuecomment-2106341291 `mangohud gamemoderun PROTON_HIDE_NVIDIA_GPU=1 PROTON_ENABLE_NVAPI=0 %command ...

... it cannot detect the GPU driver. `PROTON_HIDE_NVIDIA_GPU=1 PROTON_ENABLE_NVAPI=0 %command%` works for me. However, the original issue ...

... hotfix launch option: `PROTON_LOG=1 PROTON_HIDE_NVIDIA_GPU=1 PROTON_ENABLE_NVAPI=0 %command%` proton_logs output at a size between 1.2 ...

... PROTON_DISABLE_NVAPI=1 PROTON_HIDE_NVIDIA_GPU=1 %command% -FastLaunch (-FastLaunch skips movies) the game works once again flawless and in VR ...

... much different. > PULSE_LATENCY_MSEC=60 PROTON_HIDE_NVIDIA_GPU=1 PROTON_NO_ESYNC=1 PROTON_NO_FSYNC=1 PROTON_LOG=1 %command% --launcher-skip I am running ...

... WINEDLLOVERRIDES="xaudio2_7=n,b" PULSE_LATENCY_MSEC=4 MANGOHUD=1 PROTON_NO_ESYNC=1 PROTON_NO_FSYNC=1 PROTON_HIDE_NVIDIA_GPU=1 gamemoderun %command% --launcher-skip ...

... WINEDLLOVERRIDES="xaudio2_7=n,b" PULSE_LATENCY_MSEC=4 MANGOHUD=1 PROTON_NO_ESYNC=1 PROTON_NO_FSYNC=1 PROTON_HIDE_NVIDIA_GPU=1 gamemoderun %command% --launcher-skip ...

Try PROTON_HIDE_NVIDIA_GPU=1 %command% The issue (in theory) is that the game cant see our gpus's since ...

... Unrelated, but I also have to launch with PROTON_HIDE_NVIDIA_GPU=1 %command%

... PROTON_ENABLE_HIDRAW=0x1209/0x4f54 SDL_JOYSTICK_HIAPI=0 PROTON_HIDE_NVIDIA_GPU=1 %command% 3. Add udev rules for controller. 4. Make registry changes ...

... drive 550 and those args `PROTON_HIDE_NVIDIA_GPU=1 VKD3D_DISABLE_EXTENSIONS=VK_NV_low_latency2 __GL_SHADER_DISK_CACHE_SKIP_CLEANUP=1 %command%` I can play in medium at ...

... My launch command: ``` PROTON_HIDE_NVIDIA_GPU=1 PROTON_ENABLE_NVAPI=1 VKD3D_DISABLE_EXTENSIONS=VK_NV_low_latency2 __GL_SHADER_DISK_CACHE_SKIP_CLEANUP=1 prime-run mangohud %command% ``` EDIT: yep, it ...

... command: > > ``` > WINEDLLOVERRIDES="dinput8.dll,dxgi.dll=n,b" DXVK_CONFIG="dxgi.hideAmdGpu=True;dxgi.customVendorId=10de" DXVK_NVAPI_GPU_ARCH=GA100 PROTON_HIDE_NVIDIA_GPU ...

... PROTON_ENABLE_NVAPI=1 VKD3D_CONFIG=dxr PROTON_HIDE_NVIDIA_GPU=1 gamemoderun mangohud %command% -nolauncher or I set this like this: PROTON_ENABLE_NVAPI=1 ...

... I used SteamDeck=1 %command% & PROTON_HIDE_NVIDIA_GPU=1 %command%. I've used them together and alone on each proton ...

... Adding this PROTON_HIDE_NVIDIA_GPU=1 SteamDeck=1 %command% makes the game playable but DLSS will not work and still ...

... and play game successfully with below flags ```bash PROTON_HIDE_NVIDIA_GPU=1 PROTON_ENABLE_NVAPI=1 PYROVEIL_CONFIG=/home/user/.local/share/pyroveil ...

... Tested with "PROTON_HIDE_NVIDIA_GPU=1 %command%" and then it won't even load the main menu.

... __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia PROTON_ENABLE_NVAPI=1 PROTON_HIDE_NVIDIA_GPU=1 %command% in steam launch options

... I added `PROTON_HIDE_NVIDIA_GPU=1 %command%` as a launch option, and this did not prevent the random FPS drop ...

> Maybe try faking AMD GPU with DXVK. @DistantThunder @Hunk4TH @PsychedelicHell Good advice, specifying `PROTON_HIDE_NVIDIA_GPU=1 %command%` within the ...

... It works with proton-cachyos-11.0-20260520-slr-x86_64 and `PROTON_VKD3D_HEAP=1 VKD3D_CONFIG=enable_experimental_features,descriptor_heap %command%`. It ...

... PROTON_DISABLE_NVAPI=1 \ DXVK_ENABLE_NVAPI=0 \ PROTON_HIDE_NVIDIA_GPU=1 \ WINE_HIDE_NVIDIA_GPU=1 \ PROTON_HIDE_APU=1 \ PROTON_LOG=1 %command% ``` This did appear to work ...

... Advanced Launch Options: `PROTON_LOG=1 DXVK_HUD=compiler PROTON_HIDE_NVIDIA_GPU=1 gamemoderun %command%` 2. Use an (official) Sony PS4 controller ...