Comment 23 for bug 1568573

I am using a T460s with an external DVI monitor connected via a docking station, and experience the same issue. People here https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1522922 report it is fixed in mainline kernel http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.9-xenial/. I will give it a try, and report back. I also propose to mark the other bug as duplicate.