This bug was fixed in the package xserver-xorg-video-intel - 2:2.99.917-1~exp1ubuntu2
--------------- xserver-xorg-video-intel (2:2.99.917-1~exp1ubuntu2) vivid; urgency=medium
* Fix rotating external display with optimus results in corruption. - fix-sna-external-slave-rotation.patch (LP: #1410238) -- Maarten Lankhorst <email address hidden> Tue, 13 Jan 2015 15:16:03 +0100
This bug was fixed in the package xserver- xorg-video- intel - 2:2.99. 917-1~exp1ubunt u2
--------------- xorg-video- intel (2:2.99. 917-1~exp1ubunt u2) vivid; urgency=medium
xserver-
* Fix rotating external display with optimus results in corruption. external- slave-rotation. patch (LP: #1410238)
- fix-sna-
-- Maarten Lankhorst <email address hidden> Tue, 13 Jan 2015 15:16:03 +0100