Does your system has an actual root user account? Note that ubuntu does not have one by default, and relies to "sudo" to execute privileged commands. See https://help.ubuntu.com/community/RootSudo
** Changed in: lightdm (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/991921 Title: Login as root using gnome 2 shell (fallback) hangs when loggin in, but other users login just fine in Ubuntu 12.04 Status in “lightdm” package in Ubuntu: Incomplete Bug description: When I come to the login screen, with its list of users, I select "other" and type "root" and then give the password, nothing happens. All the other users accounts I can log into without any problem. I am using Gnome 2 (gnome 2 fallback session) with ubuntu 12.04 precise. I can use su root ok though, in another users desktop from a terminal. And why does Appearances not give me the faciltiy to download and install new Gnome Art themes any more? Are the two problems connected? Any help would be appreciated. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/991921/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp