Deadlystrike

Is your NIC working at gigabit or 2.5 gigabit speeds. My understanding is 2.5 gigabit support is featured in the linux kernel 5.15 and the current RC2 of unraid is 5.14 From what I have been reading 5.15 and 5.16 bring a ton of enhancements and stability to intel Alderlake in both Big Little Support, Graphics and 2.5 gigabit. So the next unraid RC3 should be pretty fire for us.

Did you do any other modifications? I rolled back all my changes and started with just Intel GPU TOP plugin Blacklisted Driver /dev/dri volume With these HW Encoding still works for H.264, but not H.265/HEVC I also tried adding the force_probe and that yielded no difference

Thanks for the helpful info. Running a new Unraid Server with a 12700K. With the steps outlined here I was able to get the GPU recognized by the host and passed through to plex. HW Transcoding is working great for H264. There seems to be an issue with HEVC transcoding. Unlike H264 which normally utilizes the video encoder as expected. I see 2-3~ seconds of a 100% spike on 2 random CPU cores and the Video 3d Render usage. followed by no activity and tons of errors from plex. Is anyone else able to get HEVC transcoding working with these new chips? The end result is the video just hangs in plex and never plays.