I have the following issue with CPU on Ubuntu 21.04.
It was not the case for me on version 20.10 and previous ones.
When the mouse is moved frequently on my PC I have huge CPU spikes. temp is above 60 C.
gnome-shellprocess loads the CPU.
- CPU -
AMD Ryzen 9 5950X- frequency boost is enabled by default - GPU -
NVIDIA GP102 [GeForce GTX 1080 Ti]-ZOTAC GeForce® GTX 1080 Mini nvidia-driver-460 (NVIDIA Corporation: GP102[GeForce GTX 1080 Ti])- proprietarydriveris used- mouse -
Razer Basilisk Ultimate Wireless - direct rendering is enabled
$ echo $XDG_SESSION_TYPE==>x11- Xorg is used by default instead of Wayland as I have NVIDIA on a board.- Installed gnome extensions:
$ ls -al ~/.local/share/gnome-shell/extensions
total 16
drwxrwxr-x 4 user user 4096 May 24 07:32 .
drwx------ 4 user user 4096 May 25 18:10 ..
drwxrwxr-x 3 user user 4096 Oct 29 2020 apps-menu@gnome-shell-extensions.gcampax.github.com
drwxrwxr-x 4 user user 4096 Oct 29 2020 auto-move-windows@gnome-shell-extensions.gcampax.github.com
$ ls -al /usr/share/gnome-shell/extensions
total 20
drwxr-xr-x 5 root root 4096 Oct 17 2019 .
drwxr-xr-x 7 root root 4096 May 12 07:30 ..
drwxr-xr-x 2 root root 4096 May 12 07:34 desktop-icons@csoriano
drwxr-xr-x 3 root root 4096 May 12 07:34 ubuntu-appindicators@ubuntu.com
drwxr-xr-x 3 root root 4096 May 12 07:34 ubuntu-dock@ubuntu.com
I tried to reduce mouse poll according to this proposal - XORG - HIGH CPU Usage.
All cases from this answer were tried too - GNOME-SHELL HIGH CPU USAGE.
The only thing that helped was to reload gnome-shell via Alt+F2 -> r. But I need to do it 15 times per day or more in order to disable those CPU spikes.
Could you please advice if it is possible to have a permanent solution for the aforementioned issue so that it won't be necessary to do manual gnome-shell reload all the time.
