This bug was fixed in the package xserver-xorg-video-intel -
2:2.21.6-0ubuntu4
---------------
xserver-xorg-video-intel (2:2.21.6-0ubuntu4) raring-proposed; urgency=low
[Chris Arges]
* Add sna-flush-scanout-cache-after-resizing.patch: Flush the scanout
cache after resizing the display. Fixes a problem that occurs
e.g. when unplugging an external display, suspend/resume, etc. by
ensuring the scanout cache is properly sized.
(LP: #1157678)
-- Bryce Harrington <br...@ubuntu.com> Fri, 19 Apr 2013 11:12:14 -0700
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1157678
Title:
[ffe] unplugging an external monitor from laptop results in corrupted
screen. Logging out fixes it.
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