WSL2 with /dev/dri passthrough to Docker container not working

[sikhness]

Windows Version

Microsoft Windows [Version 10.0.22631.3880]

WSL Version

2.2.4.0

Are you using WSL 1 or WSL 2?

• WSL 2
• WSL 1

Kernel Version

5.15.153.1-2

Distro Version

Ubuntu 22.04

Other Software

No response

Repro Steps

1. Verify VA-API is working within WSL2 by performing vainfo --display drm and all supported profiles for the video card should be published
2. Create a Ubuntu Docker container and pass through /dev/dri using sudo docker run -it --privileged --name ubuntu --device /dev/dri:/dev/dri:rwm ubuntu:22.04 bash
3. Inside the Ubuntu Docker container install vainfo and set the environment variables for d3d12 using the following commmands: apt update; apt install vainfo -y and export LIBVA_DRIVER_NAME=d3d12
4. Run vainfo --display drm within the Docker container

Expected Behavior

I expected vainfo within the container to output the same information as the WSL2 host which is the following:

libva info: VA-API version 1.14.0
libva info: User environment variable requested driver 'd3d12'
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/d3d12_drv_video.so
libva info: Found init function __vaDriverInit_1_14
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.14 (libva 2.12.0)
vainfo: Driver version: Mesa Gallium driver 23.2.1-1ubuntu3.1~22.04.2 for D3D12 (NVIDIA Quadro P1000)
vainfo: Supported profile and entrypoints
      VAProfileH264ConstrainedBaseline: VAEntrypointVLD
      VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
      VAProfileH264Main               : VAEntrypointVLD
      VAProfileH264Main               : VAEntrypointEncSlice
      VAProfileH264High               : VAEntrypointVLD
      VAProfileH264High               : VAEntrypointEncSlice
      VAProfileHEVCMain               : VAEntrypointVLD
      VAProfileHEVCMain               : VAEntrypointEncSlice
      VAProfileHEVCMain10             : VAEntrypointVLD
      VAProfileHEVCMain10             : VAEntrypointEncSlice
      VAProfileVP9Profile0            : VAEntrypointVLD
      VAProfileVP9Profile2            : VAEntrypointVLD
      VAProfileNone                   : VAEntrypointVideoProc

Actual Behavior

Instead what I got was a resource allocation failed error and I'm unable to use the /dev/dri device as shown below in the container output of vainfo --display drm:

libva info: VA-API version 1.14.0
libva info: User environment variable requested driver 'd3d12'
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/d3d12_drv_video.so
libva info: Found init function __vaDriverInit_1_14
libva error: /usr/lib/x86_64-linux-gnu/dri/d3d12_drv_video.so init failed
libva info: va_openDriver() returns 2
vaInitialize failed with error code 2 (resource allocation failed),exit

Diagnostic Logs

No response

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View similar issues

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one and thumbs upping the other issue to help us prioritize it!

Open similar issues:

• VA-API does not work in Ubuntu 24.04 (#11838), similarity score: 0.76
• WSL2 + Docker + OpenGL + NVIDIA not working (uses llvmpipe) (#7507), similarity score: 0.76
• Building new WSL2 Linux Kernel 6.6 disables /dev/dri (and VA-API) (#11837), similarity score: 0.73

Closed similar issues:

• KMS: DRM_IOCTL_MODE_CREATE_DUMB failed: Permission denied (#9662), similarity score: 0.75
• In WSL2's docker container : GPU access blocked by the operating system (#9962), similarity score: 0.74

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[sikhness]

WslLogs-2024-07-26_16-38-55.zip

[github-actions]

Diagnostic information

.wslconfig found
Detected appx version: 2.2.4.0

[onomatopellan]

I think passing through /dev/dri is not enough. Look at the official guide to get VA-API inside the container:

https://github.com/microsoft/wslg/blob/main/samples/container/Containers.md#containerized-applications-access-to-vgpu-accelerated-video

[sikhness]

@onomatopellan thank you so much, that was it!

I felt like I scoured the entire internet but wasn't able to find that, wished all this was documented on Microsoft's website instead of having to scrape through various Github issues/commits & blog posts.