Could you perform the following commands, and paste the results here, please?
ls -l /etc/shadow ls -l /sbin/unix_chkpwd ** Changed in: lightdm Status: New => Invalid ** Changed in: gnome-screensaver (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/880436 Title: locked screen does not recognise the user password To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/880436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs