Here is the file. I've just attached this now as the issue happens each time. (If you select different users, sometimes on selecting several different ones, you cannot use the mouse, only the keyboard).
** Attachment added: "/var/log/lightdm/lightdm.log" https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/886924/+attachment/2588581/+files/lightdm.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/886924 Title: Xubuntu Greeter (LightDM GTK) very glitchy To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/886924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs