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After upgrading to 12.04, I can't lock my screen anymore, has anyone encountered this and found a solution? Basically the keyboard shortcut does nothing and even if I select the lock option from the menu it still doesn't do anything at all. At the moment I have to keep logging out everytime I leave my workstation.

Thanks in advanced.


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Apperently this is caused by gnome-screensavers not installed by default in my system during upgrade. After installing the package locking works just fine – Arvy Budiarto May 8 '12 at 4:19

Sometimes, after upgrading to Ubuntu 12.04, the Lock Screen functionality stops working. The likely problem is that gnome-screensaver has been uninstalled. Just do on the terminal

sudo apt-get install gnome-screensaver

If you want to read more, can look on this link

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The above suggested solution did not work for me. I ended up solving my lock screen troubles using this article, may be you'll find this useful

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