I installed plex (offical) and am unable to select my P4000. I can see it from lshw and from the truenas advanced options seen in the screen shots here.
sudo nvidia-smi
No devices were found
$ sudo lshw -C display
*-display
description: VGA compatible controller
product: GP104GL [Quadro P4000]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:04:00.0
version: a1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
configuration: driver=nvidia latency=0
resources: irq:141 memory:91000000-91ffffff memory:b0000000-bfffffff memory:c0000000-c1ffffff ioport:2000(size=128) memory:92080000-920fffff
sudo nvidia-smi
No devices were found
$ sudo lshw -C display
*-display
description: VGA compatible controller
product: GP104GL [Quadro P4000]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:04:00.0
version: a1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
configuration: driver=nvidia latency=0
resources: irq:141 memory:91000000-91ffffff memory:b0000000-bfffffff memory:c0000000-c1ffffff ioport:2000(size=128) memory:92080000-920fffff
