SOLVED: Intel ARC310 transcoding broken

[inffy]

I set up my docker install fresh yesterday and now having a problem that transcoding doesn't work.

Jellyfin is run on a Proxmox LXC (Ubuntu 22.04, unpriviledged) and the setup has worked before, although I haven't used transcoding for a while so not sure at what point it has broken.

Fresh log from ffmpeg: https://pastebin.com/BAHYg7LD

So the issue is clearly this:

[AVHWDeviceContext @ 0x5cb1015751c0] No VA display found for any default device.
Device creation failed: -22.
Failed to set value 'vaapi=va:,kernel_driver=i915,driver=iHD' for option 'init_hw_device': Invalid argument
Error parsing global options: Invalid argument

va-api should be setup correctly:

Trying display: wayland
error: XDG_RUNTIME_DIR not set in the environment.
Trying display: x11
error: can't connect to X server!
Trying display: drm
libva info: VA-API version 1.22.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_22
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.22 (libva 2.21.0)
vainfo: Driver version: Intel iHD driver for Intel® Gen Graphics - 24.2.4 ()
vainfo: Supported profile and entrypoints
      VAProfileNone                  : VAEntrypointVideoProc
      VAProfileNone                  : VAEntrypointStats
      VAProfileMPEG2Simple            : VAEntrypointVLD
      VAProfileMPEG2Main              : VAEntrypointVLD
      VAProfileH264Main              : VAEntrypointVLD
      VAProfileH264Main              : VAEntrypointEncSliceLP
      VAProfileH264High              : VAEntrypointVLD
      VAProfileH264High              : VAEntrypointEncSliceLP
      VAProfileJPEGBaseline          : VAEntrypointVLD
      VAProfileJPEGBaseline          : VAEntrypointEncPicture
      VAProfileH264ConstrainedBaseline: VAEntrypointVLD
      VAProfileH264ConstrainedBaseline: VAEntrypointEncSliceLP
      VAProfileHEVCMain              : VAEntrypointVLD
      VAProfileHEVCMain              : VAEntrypointEncSliceLP
      VAProfileHEVCMain10            : VAEntrypointVLD
      VAProfileHEVCMain10            : VAEntrypointEncSliceLP
      VAProfileVP9Profile0            : VAEntrypointVLD
      VAProfileVP9Profile0            : VAEntrypointEncSliceLP
      VAProfileVP9Profile1            : VAEntrypointVLD
      VAProfileVP9Profile1            : VAEntrypointEncSliceLP
      VAProfileVP9Profile2            : VAEntrypointVLD
      VAProfileVP9Profile2            : VAEntrypointEncSliceLP
      VAProfileVP9Profile3            : VAEntrypointVLD
      VAProfileVP9Profile3            : VAEntrypointEncSliceLP
      VAProfileHEVCMain12            : VAEntrypointVLD
      VAProfileHEVCMain422_10        : VAEntrypointVLD
      VAProfileHEVCMain422_10        : VAEntrypointEncSliceLP
      VAProfileHEVCMain422_12        : VAEntrypointVLD
      VAProfileHEVCMain444            : VAEntrypointVLD
      VAProfileHEVCMain444            : VAEntrypointEncSliceLP
      VAProfileHEVCMain444_10        : VAEntrypointVLD
      VAProfileHEVCMain444_10        : VAEntrypointEncSliceLP
      VAProfileHEVCMain444_12        : VAEntrypointVLD
      VAProfileHEVCSccMain            : VAEntrypointVLD
      VAProfileHEVCSccMain            : VAEntrypointEncSliceLP
      VAProfileHEVCSccMain10          : VAEntrypointVLD
      VAProfileHEVCSccMain10          : VAEntrypointEncSliceLP
      VAProfileHEVCSccMain444        : VAEntrypointVLD
      VAProfileHEVCSccMain444        : VAEntrypointEncSliceLP
      VAProfileAV1Profile0            : VAEntrypointVLD
      VAProfileAV1Profile0            : VAEntrypointEncSliceLP
      VAProfileHEVCSccMain444_10      : VAEntrypointVLD
      VAProfileHEVCSccMain444_10      : VAEntrypointEncSliceLP

[inffy]

Nevermind, it was my own mistake. Forgot to pass the render group ID in the docker compose file.

Seems to work now.