I know it’s not official support, but I’ve read a few success stories and was trying to get HW transcoding to work in a docker.
Host system is Ubuntu 16.04
I have the Nvidia drivers installed on the HOST. They are working - testing by have FFMPEG encode something.
Do the drivers also need to be installed in the docker? I’ve tried, they don’t want to 
The docker workers. Can stream media just fine. When I turn on HW transcoding I get these error messages when I start streaming something:
plex | libva info: VA-API version 1.0.0
plex | libva info: va_getDriverName() returns -1
plex | libva error: va_getDriverName() failed with unknown libva error,driver_name=(null)
Here is my docker-compose.yml file contents:
version: ‘2.3’
services:
plex:
container_name: plexhwtc
image: plexinc/pms-docker
network_mode: host
restart: always
privileged: true
ports:
- 32400:32400/tcp
- 3005:3005/tcp
- 8324:8324/tcp
- 32469:32469/tcp
- 1900:1900/udp
- 32410:32410/udp
- 32412:32412/udp
- 32413:32413/udp
- 32414:32414/udp
environment:
- TZ=“America/Louisville”
- ADVERTISE_IP=http://10.10.10.18:32400/
hostname: HWPLEX
volumes:
- /Movies:/Movies:ro
devices:
- /dev/dri:/dev/dri
cpus: ‘12’
mem_limit: 8192m
storage_opt:
size: ‘5000G’
entrypoint: /bin/sh -c “chmod o+rw /dev/dri/renderD128 && usermod -aG video plex && /init”
