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+--- Thread: SOLVED: Fatal Playback Error (/t-solved-fatal-playback-error--13746)
Fatal Playback Error - Smuggles - 2025-09-18
Hello,
First I'd like to apologize if I'm asking this question in the wrong place.
I recently got a UGreen NAS which doubles as a media server. When I have hardware transcoding turned on, any media in the .mkv format completely fails to play. I can get around this issue by turning hardware transcoding off, but that puts more load on the CPU, which I'd prefer to avoid.
As far as I can tell, the solution for this would be to install/upgrade the version of FFMPEG that Jellyfin uses, but I have no idea how to do that on the NAS through UGOS and Docker.
Attached is a log file created when I attempted to play some .mkv media.
If anyone can help me out that would be much appreciated, thank you.
RE: Fatal Playback Error - IndianaLarry - 2025-09-20
Perhaps I am interpreting this wrong, but it looks like it is trying to access the GPU or something, but failing (possibly because the NAS is not equipped with a hardware-accelerating GPU).
RE: Fatal Playback Error - Smuggles - 2025-09-21
That is entirely possible. I was under the impression the the NAS (having an Intel N100 CPU) would support using Intel Quicksync for hardware transcoding.
I should also mention that when I'm streaming media with hardware transcoding turned on, the CPU usage is significantly lower than when hardware transcoding is turned off (~5% compared to ~99% utilization) which is the main thing I'm trying to avoid as I don't really want to have the CPU working that hard for a prolonged period when I just want to enjoy my shows and movies.
RE: Fatal Playback Error - Smuggles - 2025-09-21
UPDATE:
Turns out I hadn't enabled 'Graphics card perfomance' when creating the Jellyfin container in Docker. Going back through the settings and checking that box seems to have fixed my issue.