Comment 5 for bug 1421575

The bug has been reported on https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1421575

"Thinkpad X220 running vivid up to date.

Usually sits in docking station with external monitor.

Today I ran the laptop outside the docking station, and plugged it into the dock while running (which worked fine forever on utopic) but today it now freaks out.

I deleted ~/.config/monitors.xml to reset my display config

I restarted and logged in with both monitors active.

As soon as I change the display config doing the display corrupts, flickers and becomes unusable.

Here's a photo:- http://imgur.com/80LcmgV

GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:21da]
"

xorg log, https://launchpadlibrarian.net/197510967/XorgLog.txt