This bug was fixed in the package mutter - 44.1-1ubuntu1
---------------
mutter (44.1-1ubuntu1) mantic; urgency=medium
* Merge with Debian (LP: #2020225, LP: #2012100, LP: #2012717,
LP: #2013216, LP: #2019225, LP: #2006044, LP: #2015861, LP: #1999578,
LP: #2011251, LP: #2016308)
* Remaining changes:
- Add x11-Add-support-for-fractional-scaling-using-Randr.patch
- Add window-Add-ability-to-override-the-edge-constraints.patch
+ Make possible for extensions (such as Tiling Assistant) to override
window constraints. (LP: #2007710, #2011611)
mutter (44.1-1) experimental; urgency=medium
[ Jeremy Bícha ]
* New upstream release
* Drop bash patch applied in new release
* debian/libmutter-12-0.symbols: Add new symbols
[ Daniel van Vugt ]
* Update triple buffering patch for Mutter 44.1
[ Marco Trevisan (Treviño) ]
* Fix issue with Firefox opening black window in wayland sessions
- Add d/p/display-Set-compositor-selection-earlier-on-XWayland.patch
(LP: #1987976)
-- Jeremy Bícha <jbi...@ubuntu.com> Fri, 19 May 2023 16:24:49 -0400
** Changed in: mutter (Ubuntu)
Status: Fix Committed => Fix Released
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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 Released
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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