Comment 13 for bug 123205

No, it just has a bad solution to this hard problem. You have two outputs overlapping each other (the small screen is inside the large screen's area) and it can't say "this window is on this monitor" because they're on both monitors. The most obvious answer would be "whatever monitor the top-left corner is in" but I can think of a few cases where that doesn't work. The next most obvious is "whatever one the window is most in" but then once you get it to maximize to the larger monitor the smaller one is completely filled by this window so that one falls over. I think this is how compiz works now.