This bug has been fixed in -intel driver 2.8.0. Launchpad bug report: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/273306
Upstream bug report: https://bugs.freedesktop.org/show_bug.cgi?id=20463 -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org