Hello, I see a constant 30% CPU usage in this particular xorg process: /usr/lib/xorg/Xorg vt2 -displayfd 3 -auth /run/user/1000/gdm/Xauthority -nolisten tcp -background none -noreset -keeptty -novtswitch -verbose 3 With some perf I have found that most of the time is spent on: - 32,91% 32,65% [v…

I have 4 monitors with mixed refresh rates running on KDE and used to have high GPU usage plus high usage on one cpu core. The settings I found that seemed to fix it were Allow Flipping in nvidia-settings, and using Option “UseNvKmsCompositionPipeline” “false” in xorg conf. Turning off Allow…

Okay i had this problem, you need to switch your rending back-end to Xrender, some things may not work properly, like video playback on your external monitor may drop some frames, and things like games may tear a little, but you wont have 1 of your cores tied up by the compositor catching one of NVI…

Same problem for me on a Lenovo P1 Gen2 (NVIDIA Corporation TU117GLM [Quadro T2000 Mobile / Max-Q] / Mesa Intel® UHD Graphics 630 (CFL GT2)) and Ubuntu 21.04. Not sure about it, but I think it doesn’t start happening until I call xrandr to set the displays.

Can confirm it doesn’t happen on prime-select nvidia and “Perform Maximum Performance”.

This is also happening to me when connected to an external display. In hybrid mode GPU usage is at 30-40% and CPU usage on xorg is ~50%. This is idle and they never drop below that. Switching to Performance Mode i.e. fully discrete GPU fixes the issue. The solution isn’t ideal, because when not conn…

relevant bug report on the Pop OS Github page: https://github.com/pop-os/pop/issues/1662

It happened to me also with a fresh ubuntu 21.10 install with 470 and 495 drivers (not with nouveau). Running on an asus strix g512 with rtx2070. Only happening on linux (not windows) and with the secondary monitor plugged into the HDMI port. After reading this thread I’ve done what @correo1 sugges…

This issue still exists and practically makes On-Demand profile useless with external monitors. Any updates?

Same problem here, guys… when the second monitor is plugged in Xorg and nv_queue goes up on CPU. changed settings on bios to discrete so I could work, but as people said above this is not a solution. Details of my machine: lsb_release -a: No LSB modules are available. Distributor ID: Ubuntu De…

High CPU usage on xorg when the external monitor is plugged in

Graphics / Linux Linux

ViceroyFaust October 22, 2021, 6:52pm 26

(post deleted by author)

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High CPU usage on xorg when the external monitor is plugged in

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