SOLVED: Intel HEVC Transcoding

[TheDreadPirate]

For the record, you are using the LinuxServer jellyfin image, which is not official.

But that shouldn't be a problem.

Which Core Ultra model is in your NUC? I'm only seeing search results for Meteor Lake equipped NUCs. Which is what I assume your system has since renderD128 is visible. But confirm which model number it is.

And I don't think you need the entire group_add section for the LinuxServer image, so try removing it. IIRC, the container runs as root while Jellyfin inside runs as your user. Which means you don't need to do the group_add step.