Removing /var/lib/gdm fixed the crash. So it looks like to problem comes form invalid/obsolete configuration coming from Hardy.
I'm attaching the directory that triggered the crash, it could help finding the precise source of the issue. ** Attachment added: "buggy /var/lib/gdm" http://launchpadlibrarian.net/47010012/var-lib-gdm.tgz -- gdm-simple-greeter always crashes on start https://bugs.launchpad.net/bugs/573099 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