Fixed in https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2823
** Changed in: gnome-shell (Ubuntu)
Status: Opinion => Fix Committed
** Tags added: fixed-in-mutter-44.1 fixed-upstream
** Package changed: gnome-shell (Ubuntu) => mutter (Ubuntu)
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https://bugs.launchpad.net/bugs/1999578
Title:
Bursts of high CPU usage after triggering overview
Status in GNOME Shell:
Fix Released
Status in mutter package in Ubuntu:
Fix Committed
Bug description:
As requested in the upstream bug report
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6137, I hereby
file the downstream issue:
I am experiencing high cpu usage of gnome-shell in situations where I
would not expect it, leading to my fans running more often and wasting
my battery on my Dell XPS 13 9310 2-in1.
The problem can be seen in action here:
https://www.youtube.com/watch?v=Y9o7a7BGPE4
See also the upstream report for syscap recordings of such situations.
I think there might be a correlation with firefox being opened on
another workspace (but no video or any other playback happening). At
least everytime I notice that my an comes on for no reason and I fire
up top to see gnome shell consuming too much cpu, when I kill all my
firefox windows gnome shell cpu usage goes down as well, but that
could be pure coincidence.
At least I can safely rule out the triple buffering downstream ubuntu
mutter patch, since I recompiled mutter without the patch and it does
not really change the problem much.
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