You can see the solution here: https://bugs.launchpad.net/ubuntu/+bug/299717
SOLUTION: chown root:shadow /sbin/unix_chkpwd chmod 2755 /sbin/unix_chkpwd chown root:shadow /etc/shadow -- Gnome screensaver lock always reports "incorrect password" https://bugs.launchpad.net/bugs/353356 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs