... However, the original issue comment and some people are using `PROTON_HIDE_NVIDIA_GPU=0 PROTON_ENABLE_NVAPI=1` which is the opposite.

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

Using Proton Experimental bleeding edge and PROTON_HIDE_NVIDIA_GPU=0 PROTON_ENABLE_NVAPI=1 VKD3D_CONFIG=dxr the game works just as well ...

... Add `PROTON_ENABLE_NVAPI=1 %command%` to launch options. 2. Start game 3. Game window briefly flashes before crash reporter ...

... PROTON_HIDE_NVIDIA_GPU=0 PROTON_ENABLE_NVAPI=1 gamemoderun %command%

... Forcing experimental in the game properties, PROTON_ENABLE_NVAPI does indeed work.

Even when launched with `VKD3D_CONFIG=dxr11` ? and maybe optionally `PROTON_ENABLE_NVAPI=1` on Nvidia. AMD RADV also needs `RADV_PERFTEST ...

> Even when launched with `VKD3D_CONFIG=dxr11` ? and maybe optionally `PROTON_ENABLE_NVAPI=1` on Nvidia. AMD RADV also needs `RADV_PERFTEST ...

... gamemoderun WINE_FULLSCREEN_FSR=1 WINE_FULLSCREEN_FSR_STRENGTH=3 WINEDLLOVERRIDES="dinput8=n,b" PROTON_ENABLE_NVAPI=1 DXVK_ENABLE_NVAPI=1 DXVK_ASYNC=1 MANGOHUD=1 %command%`

> Replying to https://github.com/ValveSoftware/Proton/issues/5047#issuecomment-1732594734 PROTON_ENABLE_NVAPI=1 does fix those for me ...

@giantplaceholder The vulkan beta drivers don't seem to make a difference and PROTON_ENABLE_NVAPI isn't exposing dlss ...

... PROTON_HIDE_NVIDIA_GPU=0 PROTON_ENABLE_NVAPI=1 PROTON_ENABLE_NGX_UPDATER=1 VKD3D_CONFIG=dxr VKD3D_FEATURE_LEVEL=12_2

... in the Launch Options field, put: > > PROTON_HIDE_NVIDIA_GPU=0 PROTON_ENABLE_NVAPI=1 PROTON_ENABLE_NGX_UPDATER=1 VKD3D_CONFIG=dxr VKD3D_FEATURE_LEVEL=12_2 %command% ![Screenshot_20231109_193232 ...

... reason You have to enable DLSS with an environment variable in the launch options in Steam. `PROTON_ENABLE_NVAPI=1`

... Ultra Nightmare except Texture Pool Size on High. > PROTON_ENABLE_NVAPI=1 That doesn't do anything but maybe because ...

... VKD3D_CONFIG=dxr11 PROTON_CONFIG=dxr11 VKD3D_FEATURE_LEVEL=12_1 PROTON_HIDE_NVIDIA_GPU=0 PROTON_ENABLE_NVAPI=1 __GL_THREADED_OPTIMIZATIONS=1 gamemoderun mangohud %command% -nosplash -USEALLAVAILABLECORES -NoVerifyGC ```

... fixes issues which doesn't affect my system. PROTON_ENABLE_NVAPI is always 1 as I set it at login ...

GTX 3080, using PROTON_HIDE_NVIDIA_GPU=0 PROTON_ENABLE_NVAPI=1 VKD3D_CONFIG=dxr11 %command%, it gets past the intro where it shows ...

... X11 **Launch options:** `DXVK_FILTER_DEVICE_NAME="NVIDIA GeForce RTX 3080" PROTON_ENABLE_NVAPI=1 PROTON_HIDE_NVIDIA_GPU=0 VKD3D_CONFIG=dxr11,dxr VKD3D_FEATURE_LEVEL=12_2 mangohud ...

... GE-Proton8-9 Launch options: `PROTON_SET_GAME_DRIVE=1 PROTON_ENABLE_NVAPI=1 VKD3D_CONFIG=dxr11 mangohud %command%`

If folks suspect that DLSS might be the issue, you can put PROTON_ENABLE_NVAPI=0 %command% as a launch ...

... Driver Nvidia 470.74 Proton experimental Launch option : PROTON_ENABLE_NVAPI=1 %command% [steam-1091500.log](https://github.com/ValveSoftware ...

... PROTON_LOG=1 PROTON_ENABLE_NVAPI=1 PROTON_ENABLE_NGX_UPDATER=1 VKD3D_CONFIG=dxr11 VKD3D_FEATURE_LEVEL=12_2 mangohud gamemoderun %command% - System Specs: https://gist.github ...

... you have to do is enable it with `PROTON_ENABLE_NVAPI=1` in the launch options. But dxvk-nvapi shouldn ...

... 6.12-GE-1). - Launch commands: **`PROTON_HIDE_NVIDIA_GPU=0 PROTON_ENABLE_NVAPI=1 %command% -USEALLAVAILABLECORES -cpuLoadRebalancing -vulkan -fullscreen`** DLSS appears as ...

... tested with none and PROTON_HIDE_NVIDIA_GPU=0 PROTON_ENABLE_NVAPI=1 %COMMAND% -USEALLAVAILABLECORES -ignorepipelinecache I've tried deleting the sga files ...

... This way you'll have both DLSS and Reflex. > `PROTON_ENABLE_NVAPI=1 VKD3D_CONFIG=dxr` Fyi this does pretty much ...

... I tried starting the game with `PROTON_HIDE_NVIDIA_GPU=0 PROTON_ENABLE_NVAPI=1`, both individually and jointly. This is my computer ...

In GE, Hotfix, and Expermental with args `PROTON_ENABLE_NVAPI=1 VKD3D_CONFIG=dxr %command%` Receive this: ![image](https://github.com ...

... management : ```bash export VKD3D_FEATURE_LEVEL=12_2 export VKD3D_CONFIG=dxr11,dxr export PROTON_HIDE_NVIDIA_GPU=0 export PROTON_ENABLE_NVAPI=1 export PROTON_ENABLE_NGX_UPDATER=1 ```

... I've added the following variables to my ~/.profile file: ```bash export PROTON_HIDE_NVIDIA_GPU=0 export PROTON_ENABLE_NVAPI=1 export ...

... 0cbf2b79b0be.png) I also use these options PROTON_LOG=1 PROTON_ENABLE_NVAPI=1 PROTON_HIDE_NVIDIA_GPU=0 __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia %command%

... is directly from the 2060. **Launch options:** PROTON_LOG=1 PROTON_ENABLE_NVAPI=1 PROTON_HIDE_NVIDIA_GPU=0 __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia %command%

... C __NV_PRIME_RENDER_OFFLOAD=1 PRESSURE_VESSEL_FILESYSTEMS_RW=/data:/run/media:/T5 PROTON_ENABLE_NVAPI=1 VKD3D_FILTER_DEVICE_NAME=NVIDIA VK_ICD_FILENAMES=/usr/share/vulkan/icd.d ...

... issues with launch option: `DXVK_FILTER_DEVICE_NAME="GeForce RTX 2070" PROTON_ENABLE_NVAPI=1 PROTON_HIDE_NVIDIA_GPU=0 VKD3D_CONFIG=dxr %command% -nologos` Now everything ...

... CLI Args: `PROTON_LOG=1 VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/nvidia_icd.json PROTON_HIDE_NVIDIA_GPU=0 PROTON_ENABLE_NVAPI=1 VKD3D_CONFIG=dxr11 ...

... issues with launch option: `DXVK_FILTER_DEVICE_NAME="GeForce RTX 2070" PROTON_ENABLE_NVAPI=1 PROTON_HIDE_NVIDIA_GPU=0 VKD3D_CONFIG=dxr %command% -nologos` Now everything ...

... experimental > > Proton settings: ` PROTON_USE_NTSYNC=1 PROTON_ENABLE_WAYLAND=1 %command%` > also tried other flags: `MANGOHUD=1 PROTON_ENABLE_NVAPI=1 DXVK_ASYNC=1 ...

... Please try again after doing that. > PROTON_ENABLE_NVAPI=1 PROTON_ENABLE_WAYLAND=1 DXVK_ASYNC=1 mangohud %command% @Sazzels Also, try again ...

... 1 %command%` also tried other flags: `MANGOHUD=1 PROTON_ENABLE_NVAPI=1 DXVK_ASYNC=1 PROTON_DLSS_UPGRADE=1 PROTON_NVIDIA_NVOPTIX=1 PROTON_USE_NTSYNC=1 ...

... I also tried removing `PROTON_ENABLE_NVAPI=1 PROTON_HIDE_NVIDIA_GPU=0` from my default gaming environment but it didn't change ...

... Script is: ``` export GAMEMODERUNEXEC=prime-run export PROTON_HIDE_NVIDIA_GPU=0 export PROTON_ENABLE_NVAPI=1 export VKD3D_CONFIG=dxr,dxr11 export PROTON_ENABLE_NGX_UPDATER ...

... I tried flags "/edo /autoquit /autorun", "gamemoderun %command%", "gamemoderun %command% /edo /autoquit /autorun", "PROTON_ENABLE_NVAPI=1 DXVK_ASYNC=1 PROTON_NO_ESYNCH ...

... I'm on Nvidia with the launch options `PROTON_ENABLE_NVAPI=1 VKD3D_CONFIG=dxr %command%` but even without it's ...

... I got it to work with the following commands `PROTON_ENABLE_NVAPI=1 VKD3D_CONFIG=dxr11 VKD3D_FEATURE_LEVEL=12_1 PROTON_HIDE_NVIDIA_GPU=0 VK_ICD_FILENAMES ...

... just started the game with only the parameters PROTON_ENABLE_NVAPI=1 VKD3D_CONFIG=dxr11. It was again a black screen ...

... am using `VKD3D_CONFIG=no_upload_hvv PROTON_HIDE_NVIDIA_GPU=0 PROTON_NO_ESYNC=1 PROTON_ENABLE_NVAPI=1 MANGOHUD=1 PULSE_LATENCY_MSEC=60 %command%` but it still ...

... Proton 7.0 (proton-7.0-1) Game now works OOTB with DLSS working with `PROTON_ENABLE_NVAPI=1` set ...

... Tried with these: `VKD3D_CONFIG=no_upload_hvv PROTON_HIDE_NVIDIA_GPU=0 PROTON_NO_ESYNC=1 PROTON_ENABLE_NVAPI=1 MANGOHUD=1 PULSE_LATENCY_MSEC=60 %command%` It freezes ...

... Observe issue ## Additional note * Adding or removing `PROTON_ENABLE_NVAPI=1` to get DLSS working in the game doesn't ...

... driver export PROTON_HIDE_NVIDIA_GPU=0 # Report as Nvidia export PROTON_ENABLE_NVAPI=1 # Enable NVAPI library export PROTON_ENABLE_NGX_UPDATER=1 # Enable OTA ...