I have tested and the same bug, but I found something interesting: I leave empty password but change it with the command "passwd", and can continue login without the password, after reboot too. (The /etc/shadow has a hash entry but gdm ingnore it).
** Package changed: ubuntu => gnome-control-center (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1020769 Title: Standard user can't change own empty password To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1020769/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs