SOLVED: Codec issues on Sony Bravia using hardware acceleration

[TheDreadPirate]

You shouldn't be creating a group. The render group should already exist and the GPU should already be a member of it.

Code:

chris@rat-trap:~$ getent group render | cut -d: -f3
993
chris@rat-trap:~$ ll /dev/dri
total 0
drwxr-xr-x  3 root root        100 Jun 26 12:51 ./
drwxr-xr-x 22 root root       4920 Jun 26 12:51 ../
drwxr-xr-x  2 root root         80 Jun 26 12:51 by-path/
crw-rw----  1 root video  226,   1 Jun 26 12:51 card1
crw-rw----  1 root render 226, 128 Jun 26 12:51 renderD128

The relevant part of my docker compose for reference.

Code:

services:
  jellyfin-testing:
    image: jellyfin/jellyfin:10.9.7
    container_name: jellyfin-stable-testing
    user: 105:104
    group_add:
      - "993" # Intel render group
    networks:
      blackmoon:
        ipv4_address: 172.16.100.2
    expose:
      - 8096
    volumes:
      - ./jellyfin-stable-data/config:/config
      - ./jellyfin-stable-data/cache:/cache
      - /media/library:/media/library:ro
      - /media/storage2:/media/storage2:ro
    devices:
      - /dev/dri/renderD128:/dev/dri/renderD128
    restart: 'unless-stopped