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It does not break anything, myself and others have been using it this way for months

(I cant edit the above message) Make sure you set up the Data, and Cofiguration Storage locations all as ixVolume (Dataset created automatically by the system). Also select Plex Logs Storage and Plex Transcode Storage to Temporary directory created on disk)

I was able to get it to work by uninstalling Plex and re-installing it directly from TrueNAS. The key thing is make sure you set up the Data, and Cofiguration Storage locations all as ixVolume (Dataset created automatically by the system) This should only take you 5-10 mins

I'd be happy to work with any/all commenters to help create a guide we can add to our DIRECTORY OF GUIDES - @Tamaluko Is your first post sufficient or would any additions or edits be helpful?

Honestly wish I was more help, new to this whole hexos/truenas thing... it is 100% working, plex shows HW in the dashboard when transcoding and CPU usage doesn't jump with 6 transcoded 4k streams going. As to what I did... I tried installing plex through Hexos, which made the folders and stuff for me, but transcoding didn't work despite showing the GPU, ended up uninstalling plex, and reinstalling via truenas using the default save paths that Hexos did, that also didn't work. I then uninstalled again and installed using truenas default install paths, and just adding the paths for my movie storage. Then the transcoding started working fine. I'm sure it's some permission issue in the background somewhere, but I couldn't figure it out but this worked for me. Your mileage may very lol

Hey folks. Just want to share the the HexOS team is aware of the IntelARC GPU passthrough issue and has a test system being used to try and ID and diag/resolve the issue. Thank you for your patience.

I do have an intel A380 working with Plex, I ended up having to do the plex install in Truenas instead of Hexos and fight for a bit... but was able to get HW decoding going.

In truenas go into 'system > shell' Run this midclt call app.gpu_choices | jq Take note of the output - you need the pci_slot value, this should look something like 0000:01:00.0 and you need the uuid value which should look something like GPU-ab0fdc2d-e1f7-d2fc-54e0-5b34ff44c3d9. You can copy from shell by highlighting the text and using CTRL + Insert Then run the following replacing PCI_SLOT with your pci_slot value and GRU_UUID with your uuid value sudo midclt call -job app.update plex '{"values": {"resources": {"gpus": {"use_all_gpus": false, "nvidia_gpu_selection": {"PCI_SLOT": {"use_gpu": true, "uuid": "GPU_UUID"}}}}}}'