It seems that somehow my user got added to the nopasswordlogin group. Removing my user from this group would solve the problem so I solved this by going into the terminal and typing in the command line: sudo gedit /etc/group and deleting my user name from the nopasswdlogin group in the text file and then saving the file again. Now I can lock the screen and the system requests a password on the ubuntu login screen. The screen wouldn't lock before because there was no password with which to lock the screen. The system didn't request a password because the user was in the nopasswordlogin group. Thanks.
Kind Regards Jorge ** Changed in: unity (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1380878 Title: lock screen doesnt work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1380878/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs