unsnapping a snapped window causes incorrect mouse placement

[Alan Pope 🍺🐧🐱 🦄]

Open a window.
Snap it to the side of the display by dragging it to the side of the display
Unsnap it by grabbing the titlebar and pull it away from the side of the display.
Observe that the mouse cursor is not where the titlebar of the window is.

I expect that the mouse cursor should be on the titlebar.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.0.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-8.15-generic 3.2.0
Uname: Linux 3.2.0-8-generic x86_64
NonfreeKernelModules: nvidia wl
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 290.10 Wed Nov 16 17:39:29 PST 2011
 GCC version: gcc version 4.6.2 (Ubuntu/Linaro 4.6.2-10ubuntu1)
.tmp.unity.support.test.0:

ApportVersion: 1.90-0ubuntu2
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,resize,fade,unitymtgrabhandles,scale,session,unityshell]
CompositorRunning: compiz
Date: Sun Jan 15 14:44:41 2012
DistUpgraded: Log time: 2011-12-22 10:48:58.804612
DistroCodename: precise
DistroVariant: ubuntu
GraphicsCard:
 nVidia Corporation Device [10de:08a0] (rev a2) (prog-if 00 [VGA controller])
   Subsystem: Apple Computer Inc. Device [106b:00c2]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110901)
JockeyStatus:
 kmod:wl - Broadcom STA proprietary wireless driver (Proprietary, Enabled, In use) [auto-install]
 xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, In use)
MachineType: Apple Inc. MacBookPro7,1
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-8-generic root=UUID=d9fc020e-1fa2-451d-bc30-b6bcf18e3aa4 ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: Upgraded to precise on 2011-12-22 (24 days ago)
dmi.bios.date: 06/01/10
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP71.88Z.0039.B0B.1006012305
dmi.board.name: Mac-F222BEC8
dmi.board.vendor: Apple Inc.
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F222BEC8
dmi.modalias: dmi:bvnAppleInc.:bvrMBP71.88Z.0039.B0B.1006012305:bd06/01/10:svnAppleInc.:pnMacBookPro7,1:pvr1.0:rvnAppleInc.:rnMac-F222BEC8:rvr:cvnAppleInc.:ct10:cvrMac-F222BEC8:
dmi.product.name: MacBookPro7,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu8
version.ia32-libs: ia32-libs 20090808ubuntu33
version.libdrm2: libdrm2 2.4.30-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu4
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.10.4-1ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1

[Rick Spencer (rick-rickspencer3)]

I don't see this behavior when I snap to the right of the display. However, I do see somehting like it when I go full screen by dragging to the top of the display and then restoring by dragging off the top.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 886192, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.