https://github.com/blakeblackshear/frigate/discussions/5773


root@pveX:~# lspci -nnv | grep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller])
root@pveX:~# ls -l /dev/dri
total 0
drw-rw---- 2 root root         80 Feb 21 16:45 by-path
crw-rw---- 1 root video  226,   0 Feb 21 16:45 card0
crw-rw---- 1 root render 226, 128 Feb 11 12:00 renderD128





lxc.cgroup2.devices.allow: c 226:0 rwm
lxc.cgroup2.devices.allow: c 226:128 rwm
lxc.mount.entry: /dev/dri/renderD128 dev/dri/renderD128 none bind,optional,create=file 0, 0
lxc.mount.entry: /dev/dri dev/dri none bind,optional,create=dir