What version of the package (dpkg -l gdm) is installed? Maybe you could get a backtrace with libglib2.0-0-dbg installd?
-- gdm segfaults on ia64 with in ve_locale_from_utf8: address out of bounds https://launchpad.net/bugs/62356 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs