Not sure weather it's a GDM OR XDM issue, judging from other issues found it looks like it's a previous GDM bug resurfaced!
** Package changed: xdm (Ubuntu) => gdm (Ubuntu) -- 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/1421325 Title: xdmcp server ubuntu 14.04 login error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm/+bug/1421325/+subscriptions -- desktop-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
