I am having Ubuntu 13.04 and 13.10. I have no problem with 13.04
In 13.10 I found that, when I tried to drag my window up across my standard dual-screen setup, it gets jammed/stopped when it goes as high as the top menu bar and won't go higher into my other screen that's configured from system-settings->displays to be right above the current one.
In another word, My external monitor is positioned as above my internal laptop's screen, and I'm trying to drag my window up from my laptop screen into my external monitor screen. Dragging a window in reverse direction, e.g. down from external screen to my laptop screen is totaly fine.
I disabled maximizing at top screen edge (from CCSM) but still window won't drag up through the lower screen's top edge. I thought this might be related to some kind of snapping but I don't see any options for this in
could this be about unity's menu bar? Or anything else?