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I have installed kde-desktop on my Ubuntu 22.04.

When I login to the KDE session and hit ctrl+L to lock the screen, the kscreenlocker app doesn't allow me to unlock it back.

I can see that the password is correct (there is a preview password button), but it says "Unlocking failed". So I have to click on "switch user", and login using GDM. After that it unlocks my session.

How can I figure out what is wrong?

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1 Answer 1

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My wife's machine was set to autologin, and ran into this problem. I solved it by updating her password from root.

In her case, Alt+Ctrl+F3 got me a terminal, where I logged into root. I ran the password utility and updated her password to the same one she already had and rebooted.

passwd herusername and problem solved.

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