*** This bug is a duplicate of bug 353356 *** https://bugs.launchpad.net/bugs/353356
I had this issue and can confirm it was resolved by: chown root:shadow /sbin/unix_chkpwd chmod 2755 /sbin/unix_chkpwd chown root:shadow /etc/shadow sudo chmod g+r /etc/shadow Ubuntu version: 13.10 gnome-screensaver version: 3.6.1 Not sure if it makes a difference, but my /home/ is encrypted. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/299717 Title: Lock screen password incorrect To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/299717/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs