N100 HW Transcoding QSV not working

[TheDreadPirate]

Can you share one of the ffmpeg logs associated with this issue.  I'm betting it is trying to transcode TO AV1, which your device does not support encoding to.  It can DECODE AV1, but not encode.

For the list of codecs, check ALL the boxes except VP8.  UNcheck "Allow encoding in AV1 format" since your N100 does not support encoding to that.  Check VPP tone mapping and tone mapping.  UNcheck both low power encoding boxes, unless you followed the documentation to set that up.  It isn't necessary, but may be worth the effort to get setup, if you have not done so already.  Documentation below.

https://jellyfin.org/docs/general/admini...e-on-linux