When I try to lock the screen it just freezes. It is not possible to log on again. It used to work perfectly and suddenly it does not. However, I am not aware of any recent updates or similar.

I would try to reinstall the component that is responsible for locking the screen. Which one would that be?

5

2 Answers

You can track the bug here. Dash to Dock Gnome extension is causing it.

Upgrading packages helped for me.

Also known temporary workarounds:

1. Ctrl+Alt+F1 after locking to repaint screen.
2. Win+L twice to hide screen content (the dock will still be visible, though)
3. after logging back Alt+F2, type r, enter. To reset Gnome and fix broken dock.

5

Might be related to this bug:

I've been getting a lot of screen hangs.

try opening a terminal and enter $dmesg -w

This will show you the last error... also consider getting your sys info with $inxi -Fxz

good luck!

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