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[Launchpad Bug Tracker <1014289@xxxxxxxxxxxxxxxxxx>]

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Hi,
I noticed a strange behaviour of Unity when working with multiple windows on different desktops: It may happen that a window is thrown up above the top edge of the screen when clicking the launcher + moving it to another desktop.

Steps to reproduce:
1. Open an application on desktop 1 (Thunderbird or Geany are the ones where it happens often to me and can be reproduced with those).
2. Switch to another desktop (number 3 for example).
3. Open another application (Firefox, Nautilus or whatever).
4. Open a second window of that application.
5. Click once on the desktop background and once on the first window (this step may be omited, however with this step for me it happened to be 100 % reproducable, instead if omiting did not always happen).
6. Click on the launcher for the first application started (currently on Desktop 1). Desktop is switched and application is shown - fine.
7. Click on the launcher for the second application.

Effect: Nothing happens (however, small triangle left to launcher icon
is displayed filled). If you now press ALT+Space, followed by "m" then
you can move the  mouse to get the window back to viewport. It looks
like the window has been moved to current desktop but up in the air
above the top edge of the screen.

Desired effect: Switch to desktop 3 and show the last window of the
second app started.

Not sure if it is understandable therefore I made a video to show (see
attachment).

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.12-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic-pae 3.2.18
Uname: Linux 3.2.0-25-generic-pae i686
ApportVersion: 2.0.1-0ubuntu8
Architecture: i386
CompizPlugins: [core,composite,opengl,decor,gnomecompat,regex,compiztoolbox,place,widget,move,imgpng,animation,workarounds,snap,grid,expo,vpswitch,session,commands,resize,mousepoll,unitymtgrabhandles,ezoom,wall,switcher,fade,scale,unityshell]
Date: Sun Jun 17 14:55:22 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: compiz (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 precise unity
-- 
Window displayed on wrong desktop and up in the air
https://bugs.launchpad.net/bugs/1014289
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