Going in via SSH and changing gdm.conf by hand to use gdmlogin, instead
of gdmgreeter, makes GDM usable again, although obviously with the wrong
type of login module. I'm wondering whether 2.20.0-0ubuntu4 broke
something in GDM or whether it's actually caused by last-minute changes
in the Gutsy
*** This bug is a duplicate of bug 152505 ***
https://bugs.launchpad.net/bugs/152505
** This bug has been marked a duplicate of bug 152505
gdmgreeter segfaults when XRandR is not available
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2.20.0-0ubuntu4: Login program died. Trying a second time.