Jellyfin only able to use one of two discreet GPUs in Fangtooth

Apps and Virtualization
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1

I’ve been testing out Fangtooth and I noticed Jellyfin isn’t able to use both my dGPU’s. I did not check 24.10 behavior before the upgrade.
I have three total GPU’s - the onboard AST 2500 and two Intel Pro A40’s.

ls -al /dev/dri/                      
total 0
drwxr-xr-x  3 root root        160 Mar 29 22:43 .
drwxr-xr-x 18 root root       5300 Mar 29 22:44 ..
drwxr-xr-x  2 root root        140 Mar 29 22:43 by-path
crw-rw----  1 root video  226,   0 Mar 29 22:43 card0
crw-rw----  1 root video  226,   1 Mar 29 22:43 card1
crw-rw----  1 root video  226,   2 Mar 29 22:43 card2
crw-rw----  1 root render 226, 128 Mar 29 22:43 renderD128
crw-rw----  1 root render 226, 129 Mar 29 22:43 renderD129

If I switch Jellyfin docker to use D128 and run intel_gpu_top /dev/dri/renderD128 there is no activity.
If I switch Jellyfin docker to use D129 and run intel_gpu_top /dev/dri/renderD129 then I see activity as usual.

Can someone with multiple dGPU’s try this out and see if you’re seeing the same?

Also, how can I tell if TrueNAS is using card0 “AST 2500” and not using D128 preventing Jellyfin from using it?

2

Did you ever figure this out? I have one dGPU but also one iGPU. I’m running Frigate as well as Jellyfin and having oddities with Frigate being able to access the dGPU. Everything was working fine prior to updating to Fangtooth.