I have a ThinkPad T420 with Intel Graphics, and an external monitor through DisplayPort. I was running 12.10 with no problems, but 2 days ago, after an update, my system started to crash with no reason.
Well, I was already planning to come back to 12.04 LTS, so I did it a few hours ago. After a clean install and updates, I got the same random crashes.
This guy seems to have the same problem I'm facing. Is there anything I can do to help fixing this issue?