QNAP TS264 using almost 100% CPU with Jellyfin

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1

Hello,

I have a QNAP TS-264 with a WD Red Plus 6TB drive. QTS firmware version is 5.2.4.3079. Jellyfin version is 10.10.6-02. I am new to all of this so please bear with me.

I shut down the NAS to make sure I was starting fresh and after it fires up, the CPU sits at around 2-3% (viewing on Chrome on my laptop). If I launch Jellyfin (on my LG C3 TV) and try to watch a 2160p (4k) movie, it jumps to 99+% and the movie won’t play. It might load and play for 30 seconds or so and then buffer non-stop to the point it errors out and won’t let me play it. With 1080p, CPU usage jumps to about 40-50% and plays just fine.

Here is the kicker… if I try to do the same on my Pixel 9 Pro XL on Jellyfin (using VLC to do the actual watching), the CPU usage doesn’t jump past 10% and I am able to watch anything and everything just fine.

Are there any settings I can mess around with to make this work? Should I ditch Jellyfin and use something else? Any help is appreciated.

2

Sounds like the NAS is transcoding in software (and the tiny Celeron CPU cannot cope)

How did you install Jellyfin? (qpkg,container,etc)

3

I installed it using qpkg and I also downloaded the Jellyfin-1 docker in the container station.

4

With docker you need to use compose to pass the gpu through

Can you see your igpu in the qpkg?