Is there a timeframe on moving to a more recent kernel to support current gen Intel graphics? I believe 5.11.0-18 onward should have support without needing to add a boot option.
For now creating the file /etc/modprobe.d/i915.conf with contents of "options i915 force_probe=4c90" and rebooting works. Though I assume that will get cleared in an upgrade. The 4c90 is specifically the Intel UHD P750. I believe the normal UHD 750 is 4c84, but I don't have one to test with.
I can say that HW transcoding 4k to 1080 HD seems to be working great inside my plex app. Transcoding to lower than that has graphical issues for HDR content. But I believe that is a plex tonemapping issue and nothing hardware related. For anyone that tries, it seems like you can't set the GPU resource during the initial creation of the app, but you can edit and add the i915 GPU after it is created.
For now creating the file /etc/modprobe.d/i915.conf with contents of "options i915 force_probe=4c90" and rebooting works. Though I assume that will get cleared in an upgrade. The 4c90 is specifically the Intel UHD P750. I believe the normal UHD 750 is 4c84, but I don't have one to test with.
I can say that HW transcoding 4k to 1080 HD seems to be working great inside my plex app. Transcoding to lower than that has graphical issues for HDR content. But I believe that is a plex tonemapping issue and nothing hardware related. For anyone that tries, it seems like you can't set the GPU resource during the initial creation of the app, but you can edit and add the i915 GPU after it is created.