Bug#1099987: UI freezing

[Simon McVittie]

Control: reassign -1 src:mutter 48~rc-2
Control: forcemerge 1099743 -1
Control: affects 1099743 + src:gnome-shell
Control: forwarded 1099743 https://gitlab.gnome.org/GNOME/mutter/-/issues/3959

On Sun, 09 Mar 2025 at 22:00:44 +0000, Stephan Verbücheln wrote:
>Since I installed gnome-shell 48~rc-2, the UI keeps freezing. This
>happens multiple times per hour during regular use. The whole display
>including cursor and clock are frozen.
...
>After suspend (closing and opening the lid), the freeze is gone.

If it's the same thing I'm seeing (seems likely), VT switching
(Ctrl+Alt+F6 Ctrl+Alt+F2) also seems to be a workaround.

I'm also wondering whether this is related to an issue my partner has 
been seeing occasionally on bookworm, where the UI sometimes freezes 
(but much more rarely than we're seeing in unstable) and, again, can be 
unstuck by VT switching. If it's the same thing, then having it happen 
more often in unstable is actually a good thing, because it means the 
harder-to-reproduce version in bookworm might finally get resolved in 
trixie.

On Sun, 09 Mar 2025 at 22:08:18 +0000, Stephan Verbücheln wrote:
>It appears to be the same bug as 1099743. Sorry for duplicate.

Please try the version of libmutter-16-0 (and other packages from 
src:mutter) from experimental? It includes an upstream merge request 
(not reviewed by upstream yet) which I'm hoping will resolve the issue.

It's difficult to say for sure "this is fixed" when it's an intermittent 
issue that can happen after a few minutes or a few hours, so feedback is 
useful here (especially since the possible solution is a change that has
not yet been reviewed or merged upstream).

     smcv