Is this with an AMD/Radeon GPU? If so then it would be bug 1867080.
** Package changed: wayland (Ubuntu) => mutter (Ubuntu)
** Changed in: mutter (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1866217
Title:
Mouse pointer vanished on Wayland (okay on X)
Status in mutter package in Ubuntu:
Incomplete
Bug description:
Running 20.04 with all the repos enabled (including focal-proposed)
A recent update (apt-get dist-upgrade) made the mouse point disappear.
The mouse worked on a text console... and lsusb etc showed the presence of
the mouse.
In Wayland, pressing control key showed the pointer location.
Resolution
Edited /etc/gdm3/custom.conf and uncommented "WaylandEnable=false"
Rebooted a mouse pointer is now back.
Wayland device driver problem?
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