Public bug reported:

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.

** Affects: gnome-shell (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: kinetic

** Attachment added: "apport.gnome-shell.4sllnc5r.apport"
   
https://bugs.launchpad.net/bugs/1999578/+attachment/5635523/+files/apport.gnome-shell.4sllnc5r.apport

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https://bugs.launchpad.net/bugs/1999578

Title:
  Bursts of high CPU usage after triggering overview

Status in gnome-shell package in Ubuntu:
  New

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1999578/+subscriptions


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