Myself and numerous others have a found a solution to this (at least for Intel chipsets). Check out the bug report filed at https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/314928.
Myself and numerous others have a found a solution to this (at least for Intel chipsets). Check out the bug report filed at https:/ /bugs.launchpad .net/ubuntu/ +source/ xserver- xorg-video- intel/+ bug/314928.