I am also having this issue on a brand new laptop (Ryzen 5 4500), however the dead mouse pointer is there from a fresh reboot. It is left over from the login screen and remains there once the system has logged in. If I logout, the 'dead' mouse becomes the only one on the login screen, yet loging back in causes it to freeze while a second pointer becomes active.
Very strange behaviour! -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1875528 Title: Extra frozen / stuck mouse cursor after auto screen lock / sleep Status in Mutter: Unknown Status in mutter package in Ubuntu: Confirmed Bug description: Expected: After my computer had gone to sleep and I log in I should see only a single active mouse cursor. What happened instead: After my computer had gone to sleep and I logged in I noticed a second frozen/stuck mouse cursor was on screen and was rendered in one place over any active application windows. ==== I recently upgraded to 20.04 from 19.10 but the same issue was occurring in 19.10 as well. Logging out completely then logging back in again removed the extra frozen cursor. ==== lsb_release -rd Description: Ubuntu 20.04 LTS Release: 20.04 apt-cache policy mutter mutter: Installed: 3.36.1-3ubuntu3 Candidate: 3.36.1-3ubuntu3 Version table: *** 3.36.1-3ubuntu3 500 500 http://archive.ubuntu.com/ubuntu focal/main amd64 Packages 100 /var/lib/dpkg/status ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: mutter 3.36.1-3ubuntu3 ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30 Uname: Linux 5.4.0-26-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Mon Apr 27 19:53:03 2020 InstallationDate: Installed on 2019-03-09 (415 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: mutter UpgradeStatus: Upgraded to focal on 2020-04-28 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1875528/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp