To address the two other commenters who mentioned fractional scaling - that's definitely the cause of the extra mouse cursor in my case. If I set the display scaling back to 100%, the extra cursor goes away and stays away between reboots and logout/login cycles. Upon setting it back to 125%, the second cursor initially remains gone, but returns when I reboot the machine or log out and then back in.
I'm also on 20.04, on a Thinkpad A485, Ryzen 7 Pro 2700U w/ Radeon Vega gfx. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1875528 Title: Extra frozen / stuck mouse cursor after auto screen lock / sleep To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1875528/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs