bug#37135: GNOME+Wayland: mouse pointer disappears over gnome-shell elements

[Mark H Weaver]

For the last few months, I've run into a new problem in gnome-shell that
only happens when running under Wayland: the mouse pointer disappears
sporadically, but only when the pointer is hovered over GUI elements
owned by gnome-shell.  In particular, it happens when the pointer is
over the gnome-shell top bar, or anywhere on the screen when in
"overview" mode.

One trick I've found for getting the pointer back is to move the
(invisible) pointer over the search box in overview mode.  Doing so
causes the pointer image to change from an arrow to an text insertion
graphic.

Unfortunately, this trick tends to fix it for only a short time.  The
problem has become so annoying that I basically gave up on running GNOME
within Wayland for now, and have gone back to Xorg.

This problem is not specific to Guix.  Here are some relevant bug
reports:

  https://gitlab.gnome.org/GNOME/gnome-shell/issues/1165
  https://bbs.archlinux.org/viewtopic.php?id=246970

       Mark