https://bugzilla.kernel.org/show_bug.cgi?id=60639
--- Comment #9 from douglas_peale@yahoo.com --- I will note that the system is currently set up with two monitors, one dual-link DVI (the one I am using to enter this message) the other Display port that was working up to grub, then it shut itself off after the grub screen. The stuff in xrandr.output about nothing being connected to the display port is incorrect.