What version of lightdm are you using? Is this happening in Yakkety?
** Changed in: lightdm (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/1630156 Title: No password needed to Log in after cancel the password and then reset again To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/1630156/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs