I just had this too with a fresh install of ubuntu-gnome, after install and update and dist-upgrade everything was fine. I then added the gnome3 and gnome3-staging and ricotz-testing ppa's and no login prompt or anything just a blue background and a x cursor. tried lightdm and gdm both the same story. then i thought hmmm graphics issue again with G-S so installed the nvidia-current and all was working again. :-)
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gdm in Ubuntu. https://bugs.launchpad.net/bugs/1162466 Title: GDM wont start on Ubuntu GNOME using Gnome3 ppa Status in “gdm” package in Ubuntu: Incomplete Bug description: I tried to upgrade to pre Gnome 3.8 by using the Gnome3 ppa, the update itself went well but when i restarted the only thing I got was the blue blinds background with a mouse courser, nothing else, no login promt. I tried hitting Ctrl-Alt-Del which brought up the log out dialog box and asked if I wanted to log out from GDM-session ? Strange... I tried pushing the power button once instead which brought up the shutdown dialog box telling me again I was logged in as GDM ? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm/+bug/1162466/+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

