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neutrinolabs
Increased CPU usage in Ubuntu 24.04 Desktop LTS on Raspberry Pi 5
xrdp version
0.9.24-4
Detailed xrdp version, build options
No response
Operating system & version
Ubuntu 24.04 Desktop LTS for raspberry PI
Installation method
dnf / apt / zypper / pkg / etc
Which backend do you use?
Xorg
What desktop environment do you use?
No response
Environment xrdp running on
Win 11
What's your client?
No response
Area(s) with issue?
No response
Steps to reproduce
So I used xrdp on my rpi 5 on Ubuntu 23.10 with no problem where the cpu idle usage was about 25-30% on all cores when i used remote desktop from Windows, but when i switched to Ubuntu 24.04 the cpu usage is now 60-80%, which is far too much from just idling at the desktop. The cpu usage came from gnome shell related processes. However, if i minimized the remote desktop on my windows pc, the cpu usage fell to 1% again, before spiking to 60-80% when i actively used xrdp.
✔️ Expected Behavior
That xrdp max uses about 25-30% just as it did in Ubuntu 23.10
❌ Actual Behavior
That it uses 60-80% of cpu on all cores
Anything else?
No response
We're having some issues with GNOME on 24.04 at the moment. See #3053
I suggest you try the configuration in there, as at least it's been tested by the Ubuntu team.
Other than that, there's not much we can do from this end I'm afraid. This version of GNOME isn't getting much testing on X11 so I'm not surprised there are some regressions.
You can also get some mileage out of investigating why you're seeing CPU usage that high on either platform. I'm running on a Haswell VM with two cores. The CPU is a decade old. If I run top in an xrdp session I'm seeing idle times >90% most of the time on 24.04.
In any case, please try the config and report back.
