CPU and iGPU maxed out

Plex Players Desktop Players
,
1

Server Version#: 1.19.4.2902
Player Version#: 1.11.0.1215-1d8c460c

Dear All,

I’m coming to you because I have a bit of an issue with a new setup I have made.
I was using Plex for Windows on a old NUC i3 5th GEN (2 cores) without any issue with a 1080p TV linked to it. Everything was fine…

Then I decided to upgrade my setup, as of now I’m using a NIC i3 10th GEN (2 cores - 4 Threads) with a 4K TV (scaling 300% in Windows configuration).

Since I upgraded my setup, Plex experience is almost unsuable. UI of Plex for Windows and video playback lag.

I want to say that I have a Plex server installed on a Synology NAS and configured to avoid any sort of encoding and all my files are 1080p/720p H.264.

Wierdly if I set Windows to 1080p, everything is smooth. This is where I don’t understand, since I have no video encoding setup anywhere, Plex should only stream my 1080p file without touching it but my CPU is over 95% while using Plex for Windows in 4K (20% for 1080p) and this is on the playback system not on the server.

I have done few tests and it seems that the stuttering is coming from my CPU/iGPU to be maxed out during full screen video playback using the Plex for Windows…

Untitled52
Untitled52777×644 86.3 KB

I find it very wierd that it takes so much ressources to playback a 1080p video… This is not the server …

Am I missing something in Plex server (or Plex for Windows) configuration ? I don’t think this is an hardware limitation tbh…

Note: I have tried with PMP in TV mode and everything is smooth as well even in 4K… I have as well other systems using 1080p screen and they don’t have any issue with Plex for Windows.

Apologies if this was already asked 100 times but I could not find anything specificaly related to this kind of issue (and I’m a noob as well :slight_smile: ).

Thanks !

PS: nothing else was running on the system at that time, only Plex for Windows

2

you might see if this @ Stuttering on Plex for Windows helps (not sure its the same problem, so it may do nothing).

if you look at the process or details tab and sort by cpu, what processes are using the most cpu/gpu ?

otherwise it’s difficult to help, there isn’t enough information provided, could you try to attach some client logs?

3

Hi,

Thanks for the reply, yes I have already tried the fix Stuttering on Plex for Windows - #47 by JamesKrauseIII

Here are a bit more info:

Processes with Plex for Windows running fullscreen:

Untitled2
Untitled2753×664 85.4 KB

Processes without Plex for Windows running:

Untitled3
Untitled3750×667 73.4 KB

And the logs of my latest test Plex.log (202.5 KB)

Let me know if something more could be needed :slight_smile:

4

thanks, I did not see any obvious errors in the logs, but unfortunately I’m no expert on the desktop player apps.

hopefully someone more familiar with the app can check the logs for something that might help resolve.

it definitely seems like a strange issue, it could be windows itself…

have you tried setting the scaling back to 100% ?

5

That was actually not a bad idea to test but unfortunately, it has the same result => CPU/iGPU 100%.

Thank you already for the help !

6

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.