# Hardware transcoding not working in docker **URL:** \ **Category:** Plex Media Server\ **Tags:** server-linux, server-docker\ **Created:** [January 5, 2023, 5:28pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638 "2023-01-05T17:28:59Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Tortuga](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/tortuga/32/275785_2.png) [@Tortuga](https://forums.plex.tv/u/Tortuga)\ **Post date:** [January 5, 2023, 5:28pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/1 "2023-01-05T17:28:59Z")
Server Version#: 1.30.1.6497-5fc2e0894 Player Version#: Web Client I am trying to set up Plex running in docker on my friend’s NUC. I am using `lscr.io/linuxserver/plex:latest` image and I am passing through the `/dev/dri` device. He had Plex installed on his Asustor NAS and I moved it to his NUC. Everything is working except hardware transcoding. He is a Plex Pass subscriber and he has hardware transcoding and hardware acceleration turned on. I followed the steps listed [here](https://www.reddit.com/r/PleX/comments/s34rva/comment/i1avplr/?utm_source=share&utm_medium=web2x&context=3). Here are the logs ```auto ERROR - Unknown metadata type: DEBUG - [Req#d3/Transcode] Codecs: hardware transcoding: testing API vaapi DEBUG - [Req#d3/Transcode] Codecs: hardware transcoding: testing API vaapi DEBUG - [Req#d3/Transcode] Codecs: hardware transcoding: testing API vaapi DEBUG - [Req#d3/Transcode] Codecs: hardware transcoding: testing API vaapi DEBUG - [Req#d3/Transcode] Codecs: hardware transcoding: testing API vaapi DEBUG - [Req#dc/Transcode] TPU: hardware transcoding: using hardware decode accelerator vaapi DEBUG - [Req#dc/Transcode] TPU: hardware transcoding: zero-copy support present DEBUG - [Req#dc/Transcode] TPU: hardware transcoding: using zero-copy transcoding DEBUG - [Req#dc/Transcode] Codecs: hardware transcoding: testing API vaapi DEBUG - [Req#dc/Transcode] TPU: hardware transcoding: final decoder: vaapi, final encoder: vaapi ERROR - [Req#e4/Transcode/vxdzy32g58a4lf36uo9b3xbv/fd354b7b-9729-4c1c-9d24-d5529f655bf1] [h264 @ 0x7f45611a35c0] missing picture in access unit with size 10 ERROR - [Req#e5/Transcode/vxdzy32g58a4lf36uo9b3xbv/fd354b7b-9729-4c1c-9d24-d5529f655bf1] [h264 @ 0x7f45611a35c0] no frame! ERROR - [Req#ea/Transcode/vxdzy32g58a4lf36uo9b3xbv/fd354b7b-9729-4c1c-9d24-d5529f655bf1] [h264 @ 0x7f455f0024c0] no frame! ERROR - [Req#f2/Transcode/vxdzy32g58a4lf36uo9b3xbv/fd354b7b-9729-4c1c-9d24-d5529f655bf1] Error while decoding stream #0:0: Invalid data found when processing input ERROR - [Req#f4/Transcode/vxdzy32g58a4lf36uo9b3xbv/fd354b7b-9729-4c1c-9d24-d5529f655bf1] [h264_vaapi @ 0x7f455f0fb600] Driver does not support any RC mode compatible with selected options (supported modes: CQP). ERROR - [Req#f5/Transcode/vxdzy32g58a4lf36uo9b3xbv/fd354b7b-9729-4c1c-9d24-d5529f655bf1] Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height DEBUG - Streaming Resource: Changing client to use software decoding DEBUG - TPU: hardware transcoding: enabled, but no hardware decode accelerator found DEBUG - Codecs: hardware transcoding: testing API vaapi DEBUG - TPU: hardware transcoding: final decoder: , final encoder: ERROR - [Req#10d/Transcode/vxdzy32g58a4lf36uo9b3xbv/fd354b7b-9729-4c1c-9d24-d5529f655bf1] [h264 @ 0x7f5effd105c0] missing picture in access unit with size 10 ERROR - [Req#10e/Transcode/vxdzy32g58a4lf36uo9b3xbv/fd354b7b-9729-4c1c-9d24-d5529f655bf1] [h264 @ 0x7f5effd105c0] no frame! ERROR - [Req#115/Transcode/vxdzy32g58a4lf36uo9b3xbv/fd354b7b-9729-4c1c-9d24-d5529f655bf1] [h264 @ 0x7f5efdb744c0] no frame! ERROR - [Req#116/Transcode/vxdzy32g58a4lf36uo9b3xbv/fd354b7b-9729-4c1c-9d24-d5529f655bf1] Error while decoding stream #0:0: Invalid data found when processing input DEBUG - [Req#117/Transcode/vxdzy32g58a4lf36uo9b3xbv/fd354b7b-9729-4c1c-9d24-d5529f655bf1] Transcoder: session vxdzy32g58a4lf36uo9b3xbv indicated fallback to software decoding ERROR - Unknown metadata type: ``` Please help! ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [January 5, 2023, 5:42pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/2 "2023-01-05T17:42:48Z")
Which NUC? Specifically, which CPU and distro + version is this running on ? You don’t need to hack stuff to make it work anymore. PMS brings all the runtime libraries with it now. ---
**Author:** ![Tortuga](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/tortuga/32/275785_2.png) [@Tortuga](https://forums.plex.tv/u/Tortuga)\ **Post date:** [January 5, 2023, 6:33pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/3 "2023-01-05T18:33:18Z")
Sorry @ChuckPa that info would be helpful wouldn’t it. Intel(R) Celeron(R) N5095 Ubuntu 22.04.1 LTS ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [January 5, 2023, 7:08pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/4 "2023-01-05T19:08:04Z")
@Tortuga Did you install Intel-Compute-Runtime on the host? what does `dpkg -l | grep gmmlib` return? Asking because we work perfectly with N5095 NAS CPUs ---
**Author:** ![Tortuga](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/tortuga/32/275785_2.png) [@Tortuga](https://forums.plex.tv/u/Tortuga)\ **Post date:** [January 5, 2023, 7:20pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/5 "2023-01-05T19:20:03Z")
Nothing on my friend’s NUC On my NUC where hardware transcoding works I see ```auto intel-gmmlib 21.3.3 amd64 Intel(R) Graphics Memory Management Library Package ``` ---
**Author:** ![Tortuga](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/tortuga/32/275785_2.png) [@Tortuga](https://forums.plex.tv/u/Tortuga)\ **Post date:** [January 5, 2023, 7:23pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/6 "2023-01-05T19:23:51Z")
I installed all 7 packages here… > **[Releases · intel/compute-runtime](https://github.com/intel/compute-runtime/releases)** > > Intel® Graphics Compute Runtime for oneAPI Level Zero and OpenCL™ Driver - intel/compute-runtime ---
**Author:** ![Tortuga](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/tortuga/32/275785_2.png) [@Tortuga](https://forums.plex.tv/u/Tortuga)\ **Post date:** [January 5, 2023, 7:52pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/7 "2023-01-05T19:52:06Z")
@ChuckPa I tried doing ` apt-get install intel-gmmlib` but got `Unable to locate package intel-gmmlib` Sorry for the multiple posts ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [January 5, 2023, 8:06pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/8 "2023-01-05T20:06:08Z")
> [@Tortuga](#): > > I installed all 7 packages here… Uninstall all 7 packages please 🤣 Then restart the host to complete unloading memory PMS brings everything with it. If you install those, they get injected ahead of PMS resulting in a loss of sync between what PMS knows and what the system has for support library versions. ---
**Author:** ![Tortuga](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/tortuga/32/275785_2.png) [@Tortuga](https://forums.plex.tv/u/Tortuga)\ **Post date:** [January 5, 2023, 8:24pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/9 "2023-01-05T20:24:22Z")
Ok I uninstalled all 7 packages, reboot, played a video and saw this in the logs ```auto DEBUG - [Req#132/Transcode] TPU: hardware transcoding: enabled, but no hardware decode accelerator found DEBUG - [Req#132/Transcode] TPU: hardware transcoding: final decoder: , final encoder: ERROR - [Req#13b/Transcode/rezo9f6g6p74ftkspabnljg4/8937a83d-cfc7-49cf-9952-401cd1da6357] [h264 @ 0x7f91d7e1c580] missing picture in access unit with size 10 ERROR - [Req#13c/Transcode/rezo9f6g6p74ftkspabnljg4/8937a83d-cfc7-49cf-9952-401cd1da6357] [h264 @ 0x7f91d7e1c580] no frame! ``` @ChuckPa ---
**Author:** ![Tortuga](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/tortuga/32/275785_2.png) [@Tortuga](https://forums.plex.tv/u/Tortuga)\ **Post date:** [January 5, 2023, 8:32pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/10 "2023-01-05T20:32:56Z")
Sorry, I forgot to force transcoding. When I force transcoding I get this… ```auto DEBUG - [Req#ec6/Transcode] TPU: hardware transcoding: enabled, but no hardware decode accelerator found DEBUG - [Req#ec6/Transcode] TPU: hardware transcoding: final decoder: , final encoder: ERROR - [Req#ece/Transcode/k7negxhn78fmzga93q7te1cf/0d326e6e-e796-4ca8-bd0a-953831d8ad5a] [h264 @ 0x7fd5d2c1a580] missing picture in access unit with size 10 ERROR - [Req#ecf/Transcode/k7negxhn78fmzga93q7te1cf/0d326e6e-e796-4ca8-bd0a-953831d8ad5a] [h264 @ 0x7fd5d2c1a580] no frame! DEBUG - [Req#fa6/Transcode] Codecs: hardware transcoding: testing API vaapi DEBUG - [Req#fa6/Transcode] Codecs: hardware transcoding: testing API vaapi DEBUG - [Req#fa6/Transcode] Codecs: hardware transcoding: testing API vaapi DEBUG - [Req#fa6/Transcode] Codecs: hardware transcoding: testing API vaapi DEBUG - [Req#fa6/Transcode] Codecs: hardware transcoding: testing API vaapi DEBUG - [Req#fa6/Transcode] Codecs: hardware transcoding: testing API vaapi DEBUG - [Req#fbb/Transcode] TPU: hardware transcoding: using hardware decode accelerator vaapi DEBUG - [Req#fbb/Transcode] TPU: hardware transcoding: zero-copy support present DEBUG - [Req#fbb/Transcode] TPU: hardware transcoding: using zero-copy transcoding DEBUG - [Req#fbb/Transcode] Codecs: hardware transcoding: testing API vaapi DEBUG - [Req#fbb/Transcode] TPU: hardware transcoding: final decoder: vaapi, final encoder: vaapi ERROR - [Req#fc7/Transcode/grjcf6649ekjnx68wild1nk8/3d116c95-a611-4bf8-abf8-4304a8316141] [h264 @ 0x7f2b5a5265c0] missing picture in access unit with size 10 ERROR - [Req#fc8/Transcode/grjcf6649ekjnx68wild1nk8/3d116c95-a611-4bf8-abf8-4304a8316141] [h264 @ 0x7f2b5a5265c0] no frame! ERROR - [Req#fce/Transcode/grjcf6649ekjnx68wild1nk8/3d116c95-a611-4bf8-abf8-4304a8316141] [h264 @ 0x7f2b583854c0] no frame! ERROR - [Req#fdb/Transcode/grjcf6649ekjnx68wild1nk8/3d116c95-a611-4bf8-abf8-4304a8316141] Error while decoding stream #0:0: Invalid data found when processing input ERROR - [Req#fdd/Transcode/grjcf6649ekjnx68wild1nk8/3d116c95-a611-4bf8-abf8-4304a8316141] [h264_vaapi @ 0x7f2b5847e600] Driver does not support any RC mode compatible with selected options (supported modes: CQP). ERROR - [Req#fde/Transcode/grjcf6649ekjnx68wild1nk8/3d116c95-a611-4bf8-abf8-4304a8316141] Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height DEBUG - Streaming Resource: Changing client to use software decoding DEBUG - TPU: hardware transcoding: enabled, but no hardware decode accelerator found DEBUG - Codecs: hardware transcoding: testing API vaapi DEBUG - TPU: hardware transcoding: final decoder: , final encoder: ERROR - [Req#1002/Transcode/grjcf6649ekjnx68wild1nk8/3d116c95-a611-4bf8-abf8-4304a8316141] [h264 @ 0x7ff0e6c8e5c0] missing picture in access unit with size 10 ERROR - [Req#1003/Transcode/grjcf6649ekjnx68wild1nk8/3d116c95-a611-4bf8-abf8-4304a8316141] [h264 @ 0x7ff0e6c8e5c0] no frame! ERROR - [Req#1009/Transcode/grjcf6649ekjnx68wild1nk8/3d116c95-a611-4bf8-abf8-4304a8316141] [h264 @ 0x7ff0e4af24c0] no frame! ERROR - [Req#100a/Transcode/grjcf6649ekjnx68wild1nk8/3d116c95-a611-4bf8-abf8-4304a8316141] Error while decoding stream #0:0: Invalid data found when processing input DEBUG - [Req#100b/Transcode/grjcf6649ekjnx68wild1nk8/3d116c95-a611-4bf8-abf8-4304a8316141] Transcoder: session grjcf6649ekjnx68wild1nk8 indicated fallback to software decoding ``` ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [January 5, 2023, 8:36pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/11 "2023-01-05T20:36:28Z")
OK… getting there. From inside the container, look at /dev/dri Specifically look at the GID which owns the files. Is the UID:GID combo you’re using a member of the ‘group’ which owns /dev/dri/card0 & /dev/dri/renderD128 ? ---
**Author:** ![Tortuga](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/tortuga/32/275785_2.png) [@Tortuga](https://forums.plex.tv/u/Tortuga)\ **Post date:** [January 5, 2023, 8:42pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/12 "2023-01-05T20:42:00Z")
On the host ```auto crw-rw----+ 1 root video 226, 0 Jan 5 15:20 card0 crw-rw----+ 1 root render 226, 128 Jan 5 15:20 renderD128 ``` In the container ```auto crw-rw---- 1 root video 226, 0 Jan 5 20:21 card0 crw-rw---- 1 root videob2o2 226, 128 Jan 5 20:21 renderD128 ``` But AFAIK the linuxserver docker image is supposed to set that up correctly. Logs from docker compose ```auto plex | ****permissions for /dev/dri/renderD128 are good**** plex | ****permissions for /dev/dri/card0 are good**** ``` I have a `media:media` user/group with PID/GID of `1003:1001` but oddly all of the files are owned by `911:911` PS. My NUC that works is set up the same way regarding permissions ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [January 5, 2023, 8:51pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/13 "2023-01-05T20:51:56Z")
When you’re using the native package, I go meddle with /etc/groups during installation . I add ‘plex’ to ‘render’ (or whichever group) owns /dev/dri The same needs to happen so the container can piggyback the udev group permissions. This part is usually manual. It’s a `usermod -a -G` operation. ---
**Author:** ![Tortuga](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/tortuga/32/275785_2.png) [@Tortuga](https://forums.plex.tv/u/Tortuga)\ **Post date:** [January 5, 2023, 9:00pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/14 "2023-01-05T21:00:29Z")
I get what you are saying but I am not sure how to do that. I set `PUID` and `GUID` in the docker compose file to my `media` user but for some odd reason everything on my plex folder is owned by `911:911`. All of my other linuxserver docker containers are set up the same way but `media:media` owns all of the files. There is no user or group with id of 911 on my host. So I am not sure how to add a nonexistent user to the `video` or `render` groups. And what’s also puzzling is that this works fine on my NUC and I see the same 911 user and the access is set up the same. ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [January 5, 2023, 9:02pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/15 "2023-01-05T21:02:18Z")
Here’s how we get truth from the host. ```auto [chuck@lizum ~.2002]$ ls -lan /dev/dri total 0 drwxr-xr-x 3 0 0 140 Dec 23 02:07 ./ drwxr-xr-x 21 0 0 5180 Jan 4 16:39 ../ drwxr-xr-x 2 0 0 120 Dec 23 02:07 by-path/ crw-rw----+ 1 0 109 226, 0 Jan 1 18:36 card0 crw-rw----+ 1 0 109 226, 1 Jan 5 08:57 card1 crw-rw----+ 1 0 109 226, 128 Jan 1 18:36 renderD128 crw-rw----+ 1 0 109 226, 129 Jan 1 18:36 renderD129 [chuck@lizum ~.2003]$ ls -la /dev/dri total 0 drwxr-xr-x 3 root root 140 Dec 23 02:07 ./ drwxr-xr-x 21 root root 5180 Jan 4 16:39 ../ drwxr-xr-x 2 root root 120 Dec 23 02:07 by-path/ crw-rw----+ 1 root render 226, 0 Jan 1 18:36 card0 crw-rw----+ 1 root render 226, 1 Jan 5 08:57 card1 crw-rw----+ 1 root render 226, 128 Jan 1 18:36 renderD128 crw-rw----+ 1 root render 226, 129 Jan 1 18:36 renderD129 [chuck@lizum ~.2004]$ ``` 1. PMS runs as it’s PID 2. The GID assigned to the container is a member of (in this case) group 109 (render) /etc/group will show you. EDIT: What is this group? Manually assigned?? It’s clearly non-standard. ```auto crw-rw---- 1 root videob2o2 226, 128 Jan 5 20:21 renderD128 ``` ---
**Author:** ![Tortuga](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/tortuga/32/275785_2.png) [@Tortuga](https://forums.plex.tv/u/Tortuga)\ **Post date:** [January 6, 2023, 3:41pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/16 "2023-01-06T15:41:25Z")
Take a look at: [docker-plex/run at master · linuxserver/docker-plex · GitHub](https://github.com/linuxserver/docker-plex/blob/master/root/etc/s6-overlay/s6-rc.d/init-plex-gid-video/run) Looking at this script it appears that permissions are good. And this is how mine is set up and it works. When I run `ls -lan /dev/dri` I get ```auto drwxr-xr-x 3 0 0 100 Jan 5 15:20 . drwxr-xr-x 20 0 0 4760 Jan 5 15:20 .. drwxr-xr-x 2 0 0 80 Jan 5 15:20 by-path crw-rw----+ 1 0 44 226, 0 Jan 5 15:20 card0 crw-rw----+ 1 0 109 226, 128 Jan 5 15:20 renderD128 ``` And `ls -la /dev/dri` gives me: ```auto drwxr-xr-x 3 root root 100 Jan 5 15:20 . drwxr-xr-x 20 root root 4760 Jan 5 15:20 .. drwxr-xr-x 2 root root 80 Jan 5 15:20 by-path crw-rw----+ 1 root video 226, 0 Jan 5 15:20 card0 crw-rw----+ 1 root render 226, 128 Jan 5 15:20 renderD128 ``` If I do `ll /opt/appdata/plex/Library/Application\ Support/Plex\ Media\ Server/ ` I get: ```auto drwxrwxr-x 13 911 911 4096 Jan 5 15:22 ./ drwxrwxr-x 3 911 911 4096 Jan 3 16:04 ../ drwxrwxr-x 8 911 911 4096 Jan 6 10:31 Cache/ drwxrwxr-x 5 911 911 4096 Jan 4 10:55 Codecs/ drwxrwxr-x 35 911 911 4096 Jan 5 15:21 'Crash Reports'/ drwxrwxr-x 2 911 911 4096 Jul 2 2020 Diagnostics/ drwxrwxr-x 3 911 911 4096 Dec 30 00:00 Drivers/ -rw------- 1 911 911 42 Jan 5 15:21 .LocalAdminToken drwxrwxr-x 3 911 911 4096 Jan 6 04:43 Logs/ drwxrwxr-x 3 911 911 4096 Jun 30 2020 Media/ drwxrwxr-x 6 911 911 4096 Jan 4 11:03 Metadata/ -rw-r--r-- 1 911 911 3 Jan 5 15:21 plexmediaserver.pid drwxrwxr-x 3 911 911 4096 Jun 29 2020 Plug-ins/ drwxrwxr-x 7 911 911 4096 Jun 29 2020 'Plug-in Support'/ -rw------- 1 root root 1233 Jan 3 18:09 Preferences.bak -rw------- 1 911 911 1155 Jan 3 18:21 Preferences.bak2 -rw------- 1 911 911 987 Jan 5 15:22 Preferences.xml -rw------- 1 911 911 12330 Jan 5 15:21 'Setup Plex.html' drwxrwxr-x 2 911 911 4096 Dec 30 00:00 Updates/ ``` So if it’s a permissions issue on the card and render devices, then how do I add UID 911 to the video or render group as there is no user on my system with id of 911? Could I chmod the `/dev/dri` to 777 to rule out a permissions issue? Edit: See [GitHub - linuxserver/docker-plex](https://github.com/linuxserver/docker-plex#intel) @ChuckPa ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [January 6, 2023, 6:44pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/17 "2023-01-06T18:44:58Z")
1. You can chmod the permissions of /dev/dri as a test. They will reset at restart 2. How did you get UID/GID 911 in the first place ??? Did you copy from someone else without (perhaps) realizing the impact downstream ? Do you have PMS installed natively on the host ? The functional difference (HDR tonemapping) is no longer a factor. (Built into PMS) ---
**Author:** ![Tortuga](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/tortuga/32/275785_2.png) [@Tortuga](https://forums.plex.tv/u/Tortuga)\ **Post date:** [January 6, 2023, 8:00pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/18 "2023-01-06T20:00:04Z")
I switched from the `linuxserver` image to `plexinc/pms-docker:latest`. I updated the docker compose to ensure the user/groups are correct. On host ```auto groups media media : media video render ``` In container ```auto ls -l /dev/dri total 0 crw-rw---- 1 root video 226, 0 Jan 6 14:51 card0 crw-rw---- 1 root video1 226, 128 Jan 6 14:51 renderD128 ``` Still the same errors. Then I chmod in the container to get this ```auto ls -l /dev/dri total 0 crwxrwxrwx 1 root video 226, 0 Jan 6 14:51 card0 crwxrwxrwx 1 root video1 226, 128 Jan 6 14:51 renderD128 ``` And it still reverts to software transcoding. Here are my docker compose logs… ```auto plex | [s6-init] making user provided files available at /var/run/s6/etc...exited 0. plex | [s6-init] ensuring user provided files have correct perms...exited 0. plex | [fix-attrs.d] applying ownership & permissions fixes... plex | [fix-attrs.d] done. plex | [cont-init.d] executing container initialization scripts... plex |[cont-init.d] 40-plex-first-run: executing... plex | Plex Media Server first run setup complete plex | [cont-init.d] 40-plex-first-run: exited 0. plex |[cont-init.d] 45-plex-hw-transcode-and-connected-tuner: executing... plex | [cont-init.d] 45-plex-hw-transcode-and-connected-tuner: exited 0. plex |[cont-init.d] 50-plex-update: executing... plex | [cont-init.d] 50-plex-update: exited 0. plex | [cont-init.d] done. plex | [services.d] starting services plex | Starting Plex Media Server. plex | [services.d] done. plex | Critical: libusb_init failed ``` ---
**Author:** ![Tortuga](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/tortuga/32/275785_2.png) [@Tortuga](https://forums.plex.tv/u/Tortuga)\ **Post date:** [January 6, 2023, 8:01pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/19 "2023-01-06T20:01:59Z")
I do not have PMS installed on the host. And the 911 user/groups were because I had the wrong environment variables for the linuxserver image. I have resolved that. @ChuckPa ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [January 6, 2023, 9:05pm UTC](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638/20 "2023-01-06T21:05:35Z")
I don’t worry about lsbinit failing. We’re not using a USB tuner here. Which version PMS do you have natively on the host? Version 1.29.2 has every capability the docker image (natively) without the current TrueHD / EAE issues. I’ll provide you with the DEB file if you need it for 1.29.2 Looking at my test logs and comparison data. N5105 and N5095 are both JasperLake N5105 has 8 more EUs [Next page](https://forums.plex.tv/t/hardware-transcoding-not-working-in-docker/825638.md?page=2)