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[Oli <oli@xxxxxxxxxxxx>]

** Summary changed:

- Compiz moving windows against my will
+ Compiz edge detection code is moving windows against my will

** Description changed:

  My screen is Nvidia Twinview setup and I'm using Gnome Classic with
  Compiz.
  
  I have found that since updating to 12.04 windows have two detrimental
  regressions.
  
-  1. If I place a window between the first and second monitor (so it
+  1. If I place a window between the first and second monitor (so it
  overlaps both), the window is forced back over. I can understand this
  for off-screen windows but between-monitors is silly. And there should
  be an option for turning this off if there isn't one already.
  
-  2. If I place a window half-off the top of the screen, all hell breaks
- loose. Firstly it snaps back down to the bottom of the screen but after
- that, there's no way to detach it from the bottom of the screen. As soon
- as you do (and then click anywhere) it snaps back down. The same is true
- with the top (if you move a window too high up (say holding alt and
- left-click-dragging the bottom up). I've found no way to work around
- this other than to close the window and start again, or restart compiz.
+  2. If I place a window half-off the bottom of the screen, all hell
+ breaks loose. Firstly it snaps back up so it's all on the screen (makes
+ sense if you like that sort of thing), but after that, there's no way to
+ detach it from the bottom of the screen. As soon as you do (and then
+ click anywhere) it snaps back down so the bottom of the window is back
+ at the bottom of the screen.
+ 
+    The same is true with the top (if you move a window too high up (say
+ holding alt and left-click-dragging the bottom up). I've found no way to
+ work around this other than to close the window and start again, or
+ restart compiz.
  
  The first is a dual-screen issue, the second might affect everybody; but
  they definitely seem related.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: compiz 1:0.9.7.4-0ubuntu1
  ProcVersionSignature: Ubuntu 3.2.0-21.34-generic 3.2.13
  Uname: Linux 3.2.0-21-generic x86_64
  NonfreeKernelModules: nvidia
  .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
  .proc.driver.nvidia.registry: Binary: ""
  .tmp.unity.support.test.0:
-  
+ 
  ApportVersion: 2.0-0ubuntu4
  Architecture: amd64
  CompizPlugins: [core,composite,opengl,decor,move,commands,gnomecompat,mousepoll,workarounds,compiztoolbox,resize,place,resizeinfo,ezoom]
  CompositorRunning: compiz
  Date: Thu Apr  5 13:26:27 2012
  DistUpgraded: 2012-04-03 15:47:41,715 DEBUG enabling apt cron job
  DistroCodename: precise
  DistroVariant: ubuntu
  GraphicsCard: NVIDIA Corporation GF110 [GeForce GTX 580] [10de:1080] (rev a1) (prog-if 00 [VGA controller])
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  MachineType: Gigabyte Technology Co., Ltd. X58A-UD7
  PackageArchitecture: all
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-21-generic root=UUID=1b66bb9e-5b02-49f1-8cf9-bc3f649d70a6 ro nomodeset pcie_aspm=force
  SourcePackage: compiz
  UpgradeStatus: Upgraded to precise on 2012-04-03 (1 days ago)
  dmi.bios.date: 08/24/2010
  dmi.bios.vendor: Award Software International, Inc.
  dmi.bios.version: F7
  dmi.board.name: X58A-UD7
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: x.x
  dmi.chassis.type: 3
  dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
  dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF7:bd08/24/2010:svnGigabyteTechnologyCo.,Ltd.:pnX58A-UD7:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnX58A-UD7:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
  dmi.product.name: X58A-UD7
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.
  version.compiz: compiz 1:0.9.7.4-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.32-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3
  version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

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https://bugs.launchpad.net/bugs/974242

Title:
  Compiz edge detection code is moving windows against my will

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