I’m trying to get hardware acceleration working with my Intel 265k (Arrow Lake) iGPU. I’ve never had this work successfully before.
I thought it’s likely this preview build for Battlemage would help: Battlemage Support - #245 by chris_decker08 .
I’m running in a Docker container with an Ubuntu 25.10 host. I tried getting it to work with both with the linuxserver/plex container (with VERSION and PLEX_DOWNLOAD environment variables and plexinc/pms-docker (with manually updating the server inside the container).
It sees the iGPU just fine in /dev/dri/card0 and /dev/dri/renderD128 and the transcoder settings show it.
This is, however, the logging I consistently get (not a lot of context on why it didn’t find anything):
Feb 15, 2026 22:16:53.998 [123636774845240] INFO - Plex Media Server v1.43.1.10495-10cfae054 - Docker Docker Container x86_64 - build: linux-x86_64 debian - GMT -08:00
Feb 15, 2026 22:16:53.998 [123636774845240] INFO - Linux version: 6.17.0-14-generic, language: en-US
Feb 15, 2026 22:16:53.998 [123636774845240] INFO - Processor: 12-core Intel(R) Core(TM) Ultra 7 265K
...
Feb 15, 2026 22:16:53.998 [123636774845240] INFO - Compiler is - Clang 11.0.1 (https://plex.tv 9b997da8e5b47bdb4a9425b3a3b290be393b4b1f)
Feb 15, 2026 22:18:59.441 [123636743789368] DEBUG - [Req#924/Transcode/e75fc39b-3c87-4544-a184-508315ceb7a9] TPU: hardware transcoding: enabled, but no hardware decode accelerator found
...
Feb 15, 2026 22:18:59.441 [123636743789368] DEBUG - [Req#924/Transcode/e75fc39b-3c87-4544-a184-508315ceb7a9] TPU: hardware transcoding: final decoder: , final encoder:
As a test, I set up a parallel lscr.io/linuxserver/ffmpeg:latestcontainer with the same pass through configuration and am able to get it to use VA-API successfully.
To debug further, I installed vainfo in both the working ffmpeg container and the non-working Plex one. I then ran it on the host and in both containers.
Host:
$ sudo vainfo
Trying display: wayland
error: XDG_RUNTIME_DIR is invalid or 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 2.22.0)
vainfo: Driver version: Intel iHD driver for Intel(R) Gen Graphics - 25.4.5 ()
vainfo: Supported profile and entrypoints
VAProfileNone : VAEntrypointVideoProc
VAProfileMPEG2Simple : VAEntrypointVLD
VAProfileMPEG2Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointEncSlice
VAProfileH264High : VAEntrypointVLD
VAProfileH264High : VAEntrypointEncSlice
VAProfileJPEGBaseline : VAEntrypointVLD
VAProfileJPEGBaseline : VAEntrypointEncPicture
VAProfileH264ConstrainedBaseline: VAEntrypointVLD
VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
VAProfileVP8Version0_3 : VAEntrypointVLD
VAProfileHEVCMain : VAEntrypointVLD
VAProfileHEVCMain : VAEntrypointEncSlice
VAProfileHEVCMain10 : VAEntrypointVLD
VAProfileHEVCMain10 : VAEntrypointEncSlice
VAProfileVP9Profile0 : VAEntrypointVLD
VAProfileVP9Profile0 : VAEntrypointEncSlice
VAProfileVP9Profile1 : VAEntrypointVLD
VAProfileVP9Profile1 : VAEntrypointEncSlice
VAProfileVP9Profile2 : VAEntrypointVLD
VAProfileVP9Profile2 : VAEntrypointEncSlice
VAProfileVP9Profile3 : VAEntrypointVLD
VAProfileVP9Profile3 : VAEntrypointEncSlice
VAProfileHEVCMain12 : VAEntrypointVLD
VAProfileHEVCMain422_10 : VAEntrypointVLD
VAProfileHEVCMain422_12 : VAEntrypointVLD
VAProfileHEVCMain444 : VAEntrypointVLD
VAProfileHEVCMain444 : VAEntrypointEncSlice
VAProfileHEVCMain444_10 : VAEntrypointVLD
VAProfileHEVCMain444_10 : VAEntrypointEncSlice
VAProfileHEVCMain444_12 : VAEntrypointVLD
VAProfileHEVCSccMain : VAEntrypointVLD
VAProfileHEVCSccMain : VAEntrypointEncSlice
VAProfileHEVCSccMain10 : VAEntrypointVLD
VAProfileHEVCSccMain10 : VAEntrypointEncSlice
VAProfileHEVCSccMain444 : VAEntrypointVLD
VAProfileHEVCSccMain444 : VAEntrypointEncSlice
VAProfileAV1Profile0 : VAEntrypointVLD
VAProfileAV1Profile0 : VAEntrypointEncSlice
VAProfileHEVCSccMain444_10 : VAEntrypointVLD
VAProfileHEVCSccMain444_10 : VAEntrypointEncSlice
Plex (non-working):
# vainfo
error: XDG_RUNTIME_DIR is invalid or not set in the environment.
error: can’t connect to X server!
libva info: VA-API version 1.20.0
libva info: User environment variable requested driver ‘iHD’
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_20
libva error: /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so init failed
libva info: va_openDriver() returns 18
vaInitialize failed with error code 18 (invalid parameter),exit
ffmpeg container (working):
# vainfo
error: XDG_RUNTIME_DIR is invalid or not set in the environment.
error: can’t connect to X server!
libva info: VA-API version 1.23.0
libva info: User environment variable requested driver ‘iHD’
libva info: Trying to open /usr/local/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_23
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.23 (libva 2.12.0)
vainfo: Driver version: Intel iHD driver for Intel(R) Gen Graphics - 25.3.4 ()
vainfo: Supported profile and entrypoints
VAProfileNone : VAEntrypointVideoProc
VAProfileMPEG2Simple : VAEntrypointVLD
VAProfileMPEG2Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointEncSlice
VAProfileH264High : VAEntrypointVLD
VAProfileH264High : VAEntrypointEncSlice
VAProfileJPEGBaseline : VAEntrypointVLD
VAProfileJPEGBaseline : VAEntrypointEncPicture
VAProfileH264ConstrainedBaseline: VAEntrypointVLD
VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
VAProfileVP8Version0_3 : VAEntrypointVLD
VAProfileHEVCMain : VAEntrypointVLD
VAProfileHEVCMain : VAEntrypointEncSlice
VAProfileHEVCMain10 : VAEntrypointVLD
VAProfileHEVCMain10 : VAEntrypointEncSlice
VAProfileVP9Profile0 : VAEntrypointVLD
VAProfileVP9Profile0 : VAEntrypointEncSlice
VAProfileVP9Profile1 : VAEntrypointVLD
VAProfileVP9Profile1 : VAEntrypointEncSlice
VAProfileVP9Profile2 : VAEntrypointVLD
VAProfileVP9Profile2 : VAEntrypointEncSlice
VAProfileVP9Profile3 : VAEntrypointVLD
VAProfileVP9Profile3 : VAEntrypointEncSlice
VAProfileHEVCMain12 : VAEntrypointVLD
VAProfileHEVCMain422_10 : VAEntrypointVLD
VAProfileHEVCMain422_12 : VAEntrypointVLD
VAProfileHEVCMain444 : VAEntrypointVLD
VAProfileHEVCMain444 : VAEntrypointEncSlice
VAProfileHEVCMain444_10 : VAEntrypointVLD
VAProfileHEVCMain444_10 : VAEntrypointEncSlice
VAProfileHEVCMain444_12 : VAEntrypointVLD
VAProfileHEVCSccMain : VAEntrypointVLD
VAProfileHEVCSccMain : VAEntrypointEncSlice
VAProfileHEVCSccMain10 : VAEntrypointVLD
VAProfileHEVCSccMain10 : VAEntrypointEncSlice
VAProfileHEVCSccMain444 : VAEntrypointVLD
VAProfileHEVCSccMain444 : VAEntrypointEncSlice
VAProfileAV1Profile0 : VAEntrypointVLD
VAProfileAV1Profile0 : VAEntrypointEncSlice
VAProfileHEVCSccMain444_10 : VAEntrypointVLD
VAProfileHEVCSccMain444_10 : VAEntrypointEncSlice
Perhaps there’s some incompatibility between the host driver and 1.20 version in the container?
Perhaps I’d have better luck if I stuck with 24.04, but moving to 25.10 was part of my troubleshooting and I was able to get it working at least outside of Plex.
I know that Plex doesn’t use the OS copy of iHD_drv_video.so but retrieves its own… maybe it’s in need of an update to work in this environment. If that’s correct, is there a roadmap for that?
Thanks!
