If the mouse cursor still moves then that means Xorg is still running and it was gnome-shell frozen. But we need to find out if it was just frozen or the result of a crash. Please use this command:
pidof gnome-shell to check the process ID before and after the freeze and tell us if it changes. Also immediately after the next freeze please run: journalctl -b0 > post-freeze.txt and attach the resulting text file here. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1885330 Title: System unresponsive to keyboard and mouse clicks when changing screen background Status in gnome-shell package in Ubuntu: Incomplete Bug description: Right click on screen background and choose settings. Then click a different background. System becomes unresponsive to keyboard input and mouse clicks. System returns to responsiveness after about 10 minutes. Description: Ubuntu 20.04 LTS Release: 20.04 CPU: 8-Core AMD Ryzen 7 1700 (-MT MCP-) speed: 2562 MHz Kernel: 5.4.0-37-generic x86_64 Up: 48m Mem: 2370.8/32114.5 MiB (7.4%) Storage: 1.82 TiB (5.5% used) Procs: 337 Shell: bash 5.0.16 inxi: 3.0.38 Expected behavior: Changing the background happens immediately and system remains responsive to input. What happened: System did not change the background immediately and became unresponsive to keyboard and mouse input for 10 minutes at which point the background changed to the selected one and responsiveness returned. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gnome-control-center 1:3.36.2-0ubuntu1 ProcVersionSignature: Ubuntu 5.4.0-37.41-generic 5.4.41 Uname: Linux 5.4.0-37-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.3 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Fri Jun 26 15:50:44 2020 ExecutablePath: /usr/bin/gnome-control-center InstallationDate: Installed on 2020-06-13 (13 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: gnome-control-center UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1885330/+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