[Bug 62894] Strange behavior while moving maximized window (xinerama)

[Christof Krüger]

Public bug reported:

This one is not easy to describe. But let's try it.

I have a dual-head setup using xinerama.
On the right screen I open a window and maximize it.
Now I drag the window title and move it over to the left screen.

Supposed behavior is to un-maximize the window when dragged to a
position where the title bar is NOT near the upper margin of a monitor
and maximize if it actually is.

Please watch the video I uploaded on youtube:

http://www.youtube.com/watch?v=_8Uz_nja5fY

The resolution of the video is very limited so you can't actually see
the cursor. What I do is I drag the image preview window of the "fire"
photograph straight to the left. This does not work when I drag the
window purely horizontally. It starts to jump around, appears,
disappears...

It works when I first drag it downwards to "detach" it from the right
screen, then drag it over to the left screen and "reattach" it to
maximized state again.

** Affects: metacity (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

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Strange behavior while moving maximized window (xinerama)
https://launchpad.net/bugs/62894