*** 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.
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https://bugs.launchpad.net/bugs/1920121
Title:
Unable to do anything after pressing the Super key
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