As this issue is really difficult to reproduce (I've only seen it once here), could you please attach some logs from right when/after it happens?
We'd be interested in /var/log/lightdm/lightdm.log, /var/log/lightdm/x-0-greeter.log, /var/log/lightdm/x-1-greeter.log You'll need root access to grab these logs. Please check whether there is any sensitive information in these logs that you don't want to publish before uploading them! ** Changed in: lightdm-gtk-greeter Milestone: 1.8.3 => None -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1290575 Title: lightdm-gtk-greeter does not exit cleanly when logging in To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm-gtk-greeter/+bug/1290575/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs