Upgrade to Ubuntu 14.04 LTS login bug

[Jerry Sanford]

I have upgraded two Dell system to to 14.04 and I was able to login once after the upgrade. For as long as I did not log out of the GUI everything was working great. After rebooting, any attempt to login resulted in a flash and an immediate "invalid username/password" response. I have tried my admin account, guest, as well as creating a new account. All accounts worked fine via terminal (CTRL + ALT + F) login.

Any help greatly appreciated !

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: gksu 2.0.2-6ubuntu2
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic i686
ApportVersion: 2.14.1-0ubuntu3
Architecture: i386
Date: Wed Apr 30 20:26:11 2014
InstallationDate: Installed on 2013-09-07 (235 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release i386 (20130424)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gksu
UpgradeStatus: Upgraded to trusty on 2014-04-18 (12 days ago)

[Jerry Sanford (sanfordjondariver)]

Related bug report: https://bugs.launchpad.net/ubuntu/+source/gksu/+bug/1311511