SOLVED: Can't get hardware transcoding to work

SOLVED: Can't get hardware transcoding to work - Printable Version

+- Jellyfin Forum (https://forum.jellyfin.org)
+-- Forum: Support (https://forum.jellyfin.org/f-support)
+--- Forum: Troubleshooting (https://forum.jellyfin.org/f-troubleshooting)
+--- Thread: SOLVED: Can't get hardware transcoding to work (/t-solved-can-t-get-hardware-transcoding-to-work)

Can't get hardware transcoding to work - Fardenco - 2025-05-14

Hi,
I'm trying to get hardware transcoding to work on my server but I don't know why it won't work.
My Jellyfin server is running in a docker container.
Jellyfin Server version is 10.10.7
The CPU is an Intel Pentium Gold 8505
I added the user to the "render" group, and added the group number and render devices in my docker.compose, following the documentation.
But I have a feeling that the issue is still related to user group or at least to user.
I'm using Portainer. If I open a container console with user "root", running the "/usr/lib/jellyfin-ffmpeg/vainfo" command, returns a list of profile.
But if I do the same thing whith a console with user "1000", then the command returns an error.
Because of this, I guess that the issue is not with the transcoding settings but maybe with the container settings ?

When trying to play a movie with transcoding, the error shown in the logs is

Code:
Failed to set value 'vaapi=va:,vendor_id=0x8086,driver=iHD' for option 'init_hw_device': Generic error in an external library

Error parsing global options: Generic error in an external library

Here is my docker.compose :

Code:
services:

  jellyfin:

    image: jellyfin/jellyfin:latest

    container_name: Jellyfin-HT

    user: 1000:10

    group_add:

      - '105'

    environment:

      TZ: Europe/Paris

    volumes:

      - /volume1/docker/jellyfinht/config:/config:rw

      - /volume1/docker/jellyfinht/cache:/cache:rw

      - /volume1/docker/jellyfinht/logs:/logs:rw

      - type: bind

        source: /volume1/Jellyfin/Films

        target: /movies

      - type: bind

        source: /volume1/Jellyfin/Séries

        target: /tvshows

      - type: bind

        source: /volume1/Jellyfin/Musique

        target: /music

    devices:

      - /dev/dri/renderD128:/dev/dri/renderD128

      - /dev/dri/card0:/dev/dri/card0

    restart: on-failure:5

    network_mode: host

Thank you for your help

RE: Can't get hardware transcoding to work - bitmap - 2025-05-15

Double check you followed the steps in the HWA guide. There's more than just passing the device into the docker container.

https://jellyfin.org/docs/general/post-install/transcoding/hardware-acceleration/intel

The verification steps can help you identify any issues. It might be a driver problem based on that error message.

RE: Can't get hardware transcoding to work - Fardenco - 2025-05-15

I believe I followed all the steps for Intel GPU on Linux with virtualization
I found what the issue was
My changes to the docker compose file were not used, because I was recreating the container from Portainer without previously updating the stack, it seems that the changes to the compose file are only taken into account after updating the stack.
Because of that, the "add_group" option in my compose file was not used, I saw this when I used the "id" command in the container console and the render group was not present.
Everything is working great now, thank you for your help