Comment 46 for bug 1548587

I've prepared a new pre-release kernel ("kamal3") for this issue:

http://kernel.ubuntu.com/~kamal/lp1548587.3/

For reference, this is v4.2.0-30.35 plus 1261797 "drm/vmwgfx: Fix an fb unlocking bug".

This fix will be deployed in all affected official Ubuntu kernels soon.