I did a little more digging. After I run "dm-tool switch-to-greeter", Xorg keeps restarting over and over. That's what's causing the hard drive to peg (i.e writing Xorg.log). I will post my log here shortly. -- -Ali -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/lightdm/attachments/20150917/292dd797/attachment.html>