Comment 1 for bug 806909

Hi, thanks for your bug report, this doesn't look good. Disper always sets the origin to the most left screen as to avoid negative coordinates. I remember that there were problems with this (though I can't remember exactly what they were). This is where I think the Xinerama info order should help (see `xdpyinfo -ext XINERAMA`). It might just be that Unity doesn't handle multi-head well. Or it's related to bug #782087. You could try the patch attached there.