This bug is independent from 791133 (https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/791133). Bug 791133 is a bug in mesa (opengl) and unity-2d uses the "raster" graphics system.
This bug is independent from 791133 (https:/ /bugs.launchpad .net/ubuntu/ +source/ qt4-x11/ +bug/791133).
Bug 791133 is a bug in mesa (opengl) and unity-2d uses the "raster" graphics system.