It's definitively not gdm. Downgrading to 2.30 doesn't help, and I had my system running just fine with the new gdm until this morning's upgrades. I checked dpkg.log and sized down the possible regression candidates to about 10 packages. Bisecting now..
-- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. https://bugs.launchpad.net/bugs/654578 Title: Returned to gdm screen after logging in -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs