SOLVED: Transcoding working for Admin only on Android TV app.

[TheDreadPirate]

I missed this the last post. You need to add the render group to your docker compose with the "group_add" parameter. See my compose example below.

Code:

services:
  jellyfin:
    image: jellyfin/jellyfin:unstable
    container_name: jellyfin-unstable
    user: 105:104
    group_add:
      - "993" # Intel render group
    network_mode: 'host'
    volumes:
      - ./jellyfin-data/config:/config
      - ./jellyfin-data/cache:/cache
      - /media:/media:ro
    devices:
      - /dev/dri/renderD128:/dev/dri/renderD128
    restart: 'unless-stopped'
    extra_hosts:
      - "host.docker.internal:host-gateway"

Use "getent group render" to get the group ID for render on your system.