Greeter bug, probably related: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1100989
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1070449 Title: "Login without password" option effectively locks super user out! Status in “gnome-control-center” package in Ubuntu: Confirmed Bug description: I installed Ubuntu 12.10 with the option to log my main user with a password. Then I added two other users and changed all three accounts to log in without a password. This nulled my main user's password and stopped the ability to sudo and make any system wide changes! Also the password can not be set back on, as there is no valid password to authorize any actions! In effect, you are completely left without a super user for your computer and cannot install updates or programs or do a whole lot of anything. There is a remedy to this and it is to go to the terminal and typing passwd, after which you can re-set your password. However this is not clear to many users, and that's why the Users panel simply should not be able to null your password even if you prefer to login without one. Very critical to get fixed asap! To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1070449/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

