Similar bug (and patch ppa) could be found here https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel-lts-utopic/+bug/1443345
Similar bug (and patch ppa) could be found here /bugs.launchpad .net/ubuntu/ +source/ xserver- xorg-video- intel-lts- utopic/ +bug/1443345
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