*** This bug is a duplicate of bug 1871262 *** https://bugs.launchpad.net/bugs/1871262
I comment here because I can reproduce the issue and want to add more specifics. The issue happened since upgrade to 21.04 dev branch with gnome-shell both on Wayland and Xorg. It appears occasionally, not every time though, when Super key was pressed or Mouse was moved onto the hot corner, calling up activity (application) previews. Then suddenly screen doesn't respond to any keyboard or mouse input, with window previews staying there. (In fact mouse movement is visible but clicking to close a window is no longer effective. I can restart the gnome-shell by inputting alt+F2 & r) How to reproduce : 1. Press 'Super', or move mouse to top-left corner. 2. Try typing into the dash box while (or even before) window previews show up. 3. There are chances the screen freezes. Applications cannot be switched or closed, and repressing Super key cannot disappear the previews. -- 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/1920121 Title: Unable to do anything after pressing the Super key Status in gnome-shell package in Ubuntu: Confirmed Bug description: I press super key, the various application windows appear on desktop but i'm unable to do anything: i can just click on the red 'X' top right of the window to close it but if i click on the window i can't get focus on it. to exit this situation i can only reboot so I was unable to open the problem while it was active. I can just attach the journal relative to it. The problem seems random, trying to reproduce it I had the problem 3 times out of 6 attempts. ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: gnome-shell 3.38.3-3ubuntu1 ProcVersionSignature: Ubuntu 5.11.0-11.12-generic 5.11.0 Uname: Linux 5.11.0-11-generic x86_64 ApportVersion: 2.20.11-0ubuntu60 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Fri Mar 19 08:49:44 2021 DisplayManager: gdm3 InstallationDate: Installed on 2021-02-28 (18 days ago) InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Alpha amd64 (20210228) RelatedPackageVersions: mutter-common 3.38.3-3ubuntu2 SourcePackage: gnome-shell 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/1920121/+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