Shut down the LXC

Shell into the host and edit the LXC config

nano /etc/pve/lxc/112.conf

Add lines below

lxc.cgroup2.devices.allow: c 195:0 rw lxc.cgroup2.devices.allow: c 195:1 rw lxc.cgroup2.devices.allow: c 195:255 rw lxc.cgroup2.devices.allow: c 510:0 rw lxc.cgroup2.devices.allow: c 510:1 rw lxc.cgroup2.devices.allow: c 10:122 rw lxc.cgroup2.devices.allow: c 10:144 rw

lxc.mount.entry: /dev/nvidia0 dev/nvidia0 none bind,optional,create=file lxc.mount.entry: /dev/nvidia1 dev/nvidia1 none bind,optional,create=file lxc.mount.entry: /dev/nvidiactl dev/nvidiactl none bind,optional,create=file lxc.mount.entry: /dev/nvidia-modeset dev/nvidia-modeset none bind,optional,create=file lxc.mount.entry: /dev/nvidia-uvm dev/nvidia-uvm none bind,optional,create=file lxc.mount.entry: /dev/nvidia-uvm-tools dev/nvidia-uvm-tools none bind,optional,create=file lxc.mount.entry: /dev/nvram dev/nvram none bind,optional,create=file

Save file and boot up LXC

Console into LXC and download driver

wget https://us.download.nvidia.com/XFree86/Linux-x86_64/550.76/NVIDIA-Linux-x86_64-550.76.run

Set execute permissions

chmod +x ./NVIDIA-Linux-x86_64-550.76.run

Install w/o kernel

./NVIDIA-Linux-x86_64-550.76.run --no-kernel-module

reboot