[BUG] Hardware Transcoding failure on AMD Radeon 780M (RDNA 3) - missing amdgpu.ids / fallback to CPU

[PicSte]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

Hardware transcoding starts for about 1 second on the GPU then immediately falls back to the CPU (losing the (hw) badge) when using Plex native apps (TV, Console, Desktop App...). Interestingly, it works fine when transcoding via a Web Browser.

Expected Behavior

Stable Hardware Transcoding using VA-API on the Radeon 780M.

Steps To Reproduce

1. Host: Unraid 7.2.2 (Kernel 6.12.54)
2. Hardware: AMD Ryzen 7 PRO 8845HS with Radeon 780M Graphics.
3. Pass /dev/dri/renderD128 to the container.
4. Trigger a transcode from a Plex native app (e.g., HEVC 1080p to H264).

Environment

OS: Unraid 7.2.2 (Kernel 6.12.54)
Hardware: AMD Ryzen 7 PRO 8845HS (780M iGPU)
Docker image version: 1.43.1.10611-1e34174b1-ls301

CPU architecture

x86-64

Docker creation

docker run
  -d
  --name='plex'
  --net='host'
  --pids-limit 2048
  -e TZ="Europe/Paris"
  -e HOST_OS="Unraid"
  -e HOST_HOSTNAME="XXX"
  -e HOST_CONTAINERNAME="plex"
  -e 'VERSION'='docker'
  -e 'PLEX_CLAIM'='claim-XXX'
  -e 'DEVICE'='/dev/dri/renderD128'
  -e 'PUID'='1000'
  -e 'PGID'='1000'
  -e 'UMASK'='022'
  -l net.unraid.docker.managed=dockerman
  -l net.unraid.docker.webui='http://[IP]:[PORT:32400]/web/index.html'
  -l net.unraid.docker.icon='https://raw.githubusercontent.com/linuxserver/docker-templates/master/linuxserver.io/img/plex-logo.png'
  -v '/config':'/config':'rw'
  --device='/dev/dri:/dev/dri' 'lscr.io/linuxserver/plex'

Container logs

[migrations] started
[migrations] no migrations found
───────────────────────────────────────

      ██╗     ███████╗██╗ ██████╗
      ██║     ██╔════╝██║██╔═══██╗
      ██║     ███████╗██║██║   ██║
      ██║     ╚════██║██║██║   ██║
      ███████╗███████║██║╚██████╔╝
      ╚══════╝╚══════╝╚═╝ ╚═════╝

   Brought to you by linuxserver.io
───────────────────────────────────────

To support LSIO projects visit:
https://www.linuxserver.io/donate/

───────────────────────────────────────
GID/UID
───────────────────────────────────────

User UID:    1000
User GID:    1000
───────────────────────────────────────
Linuxserver.io version: 1.43.1.10611-1e34174b1-ls301
Build-date: 2026-04-10T13:53:29+00:00
───────────────────────────────────────
    
**** creating group group10ho with id 18 ****
**** adding /dev/dri/renderD128 to group group10ho with id 18 ****
**** permissions for /dev/dri/card0 are good ****
Setting permissions on /config/tmp
**** Server already claimed ****
Docker is used for versioning skip update check
[custom-init] No custom files found, skipping...
Starting Plex Media Server. . . (you can ignore the libusb_init error)
[ls.io-init] done.
Critical: libusb_init failed
/home/runner/_work/plex-conan/plex-conan/.conan/data/libdrm/2.4.120-6/plex/main/build/678777ee2ca8706ca90cf805e0dd88235f6d7f05/meson-install/share/libdrm/amdgpu.ids: No such file or directory
/home/runner/_work/plex-conan/plex-conan/.conan/data/libdrm/2.4.120-6/plex/main/build/678777ee2ca8706ca90cf805e0dd88235f6d7f05/meson-install/share/libdrm/amdgpu.ids: No such file or directory

[github-actions]

Thanks for opening your first issue here! Be sure to follow the relevant issue templates, or risk having this issue marked as invalid.

[j0nnymoe]

If it's working via the web client, I suspect you need to report this upstream to Plex, if it didn't work on any client, I would be more inclined to say it's an issue with the container.

Assuming you have plexpass, you could try moving up a version of plex by switching -e 'VERSION'='docker' to latest and see if that improves things. It will bump the database likely though so unable to roll back.