This is most probably duplicate of bug 331324. It was fixed in gtk+2.0 - 2.15.4-0ubuntu3.
Following command will help to determine gtk+2.0 version: apt-cache policy libgtk2.0-0 -- GDM fails to load after the install of last updates in jaunty 9.04 https://bugs.launchpad.net/bugs/331674 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs