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[Pedro Côrte-Real <pedro@xxxxxxxxxxx>]

I can't reproduce it with these exact steps anymore but the bug is still
there. Here are simpler steps to reproduce it:

1) Setup four virtual desktops in a 2x2 configuration
2) On the top-left desktop setup a terminal window maximized to the left side (by dragging it to the left edge so it uses the left half of the screen)
3) Move to the top-right desktop
4) Move the mouse to the right edge and see that you can grab the left edge of the terminal

The same exact thing happens with the bottom-left and bottom-right
desktops. It's as if the desktop is wrapping around from the right edge
of the right desktop to the left edge of the left desktop.

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https://bugs.launchpad.net/bugs/1335582

Title:
  Scrolling in one desktop "touches" apps in another desktop

Status in Unity:
  Incomplete
Status in unity package in Ubuntu:
  Incomplete

Bug description:
  I've found a bug in how unity/compiz handles multiple desktops. Here
  are the steps to reproduce it.

  1) Setup four virtual desktops in a 2x2 configuration
  2) On the top-left desktop setup a terminal window maximized to the left side (by dragging it to the left edge so it uses the left half of the screen)
  3) On the top-right desktop open up firefox and maximize it
  4) Navigate to a page that needs scrolling
  5) Try to scroll by moving the scrollbar on the right of the screen

  What happens is that the mouse pointer gets grabbed by the resize
  target of the terminal window on the top-left screen.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: unity 7.2.1+14.04.20140513-0ubuntu2
  ProcVersionSignature: Ubuntu 3.13.0-30.54-generic 3.13.11.2
  Uname: Linux 3.13.0-30-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Sun Jun 29 09:52:53 2014
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:21fa]
  InstallationDate: Installed on 2014-05-03 (56 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: LENOVO 23252QG
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-30-generic root=UUID=9018e190-86bb-4fbf-a348-d47ea769640f ro quiet splash vt.handoff=7
  SourcePackage: unity
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/24/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G2ET31WW (1.11 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 23252QG
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG2ET31WW(1.11):bd05/24/2012:svnLENOVO:pn23252QG:pvrThinkPadX230:rvnLENOVO:rn23252QG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 23252QG
  dmi.product.version: ThinkPad X230
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.11+14.04.20140423-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.52-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.1
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Sat Jun 28 00:18:03 2014
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                 728 
   vendor                                     LGD
  xserver.version: 2:1.15.1-0ubuntu2

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