Bug#1099743: Wayland shell stops repainting the screen until monitor layout (or input devices?) change

[Simon McVittie]

On Fri, 07 Mar 2025 at 13:00:07 +0100, Nicolas Dandrimont wrote:
> Since [48~rc], I've had a baffling issue where the screen would stop repainting,
> until I unplug *or* replug my dock (which reconnects an external monitor,
> keyboard and mouse). I'm assuming what puts gnome-shell back on track is the
> change to the monitor layout, but I haven't really isolated the behavior yet

On Sat, 08 Mar 2025 at 12:56:06 -0800, Josh Triplett wrote:
> I don't know if this helps to debug it, but every time it freezes and I
> close and reopen the lid to un-freeze it, I see this in the log:
> 
> Mar 08 12:49:59 o gnome-shell[1126]: Cursor update failed: Timer disarmed
> 
> If I close and reopen the lid when it *isn't* frozen, that message
> doesn't appear.

I have a similar issue intermittently, possibly correlated with I/O load
(or maybe not, it's hard to tell), which can be worked around by switching
to another virtual console, and back to the one I was previously on
(in my case this is Ctrl+Alt+F6 Ctrl+Alt+F2).

This might be https://gitlab.gnome.org/GNOME/mutter/-/issues/3955 upstream,
for which there is a merge request proposed at
https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/4321 (or it might be
something different).

    smcv