What's so special about Unity's multi-monitor support? I didn't realize there was such a thing. As far as I can tell, Unity sits well above the layer that cause

What's so special about Unity's multi-monitor support? I didn't realize there was such a thing. As far as I can tell, Unity sits well above the layer that causes most multi-display issues. Once you've got multiple displays, Unity/Compiz can do stuff to make working with them nicer; e.g. switch windows from one to the other and various other stuff. But if one of the connected displays flat out does not work or displays the wrong resolution, rotation, or whatever, Unity/Compiz usually are not to blame and can't really do anything to help you.