I don't think this is a duplicate, anyway not one with the same cause. This started occurring after the upgrade to 15.10 beta; it wasn't an issue on 15.04.
Additionally, gdm does not even start / show the login prompt, while the original post clearly states that the user logged in first. ** This bug is no longer a duplicate of bug 1237904 Xorg crashed with SIGABRT in OsAbort() -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1502518 Title: Xorg crashed with SIGABRT in OsAbort() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1502518/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
