2024-08-04, 03:05 PM
You need to roll back to 6.8.0-36. Starting with -38 Ubuntu's kernel inherited an upstream kernel bug that breaks transcoding almost completely for Arc GPUs. One of the Jellyfin devs and I submitted a bug report to Ubuntu asking them to back port a couple of patches to resolve the issue. But the kernel with both patches hasn't been released yet.
https://bugs.launchpad.net/ubuntu/+sourc...ug/2072755
https://bugs.launchpad.net/ubuntu/+sourc...ug/2072755