Public bug reported:

Binary package hint: xorg

Without any obvious trigger, the mouse will cease working. I can still
move it, but it doesn't do anything like open tooltips or click, and
hovering over the Ubuntu button doesn't cause the launcher to appear.
Switching windows via alt+tab or super+w doesn't work either, though
otherwise the keyboard input works okay in the window which has focus,
and i can bring the launcher up by holding Super, and launch programs
using it with the keyboard shortcuts. After i minimize all windows using
Super+d, the bring them back, the mouse begins working again for a brief
time, until i try alt-tabbing again or clicking outside of the
currently-focused window, in which case it reverts to the previous
behavior. I've managed to make it go away through some non-repeatable
series of minimizing/unminimizing windows and opening the Ubuntu menu
over and over again.

The bug only happens to me in Unity in 11.04; it does not happen in the
Ubuntu Classic session, and did not happen to me in 10.10.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: xorg 1:7.6+4ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: wl
Architecture: amd64
CompizPlugins: 
[core,bailer,detection,composite,opengl,compiztoolbox,decor,mousepoll,vpswitch,gnomecompat,wall,regex,snap,imgpng,resize,place,grid,session,move,animation,unitymtgrabhandles,workarounds,expo,ezoom,staticswitcher,fade,scale,unityshell]
CompositorRunning: compiz
DRM.card0.DP.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes: 
 edid-base64:
DRM.card0.DP.2:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes: 
 edid-base64:
DRM.card0.HDMI.A.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes: 
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1366x768
 edid-base64: 
AP///////wBMo0w1AAAAAAASAQOAIxR4Cof1lFdPjCcnUFQAAAABAQEBAQEBAQEBAQEBAQEBQRxWoFAAFjAwICUAYcYQAAAZAAAADwAAAAAAAAAAAB60AnQAAAAA/gBTQU1TVU5HCiAgICAgAAAA/gAxNjBBVDAyLUgwMgogAKs=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes: 
 edid-base64:
Date: Fri Jun 10 16:09:22 2011
DistUpgraded: Log time: 2011-04-08 00:30:57.880914
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus:
 vboxhost, 4.0.8, 2.6.38-8-generic, x86_64: installed 
 bcmwl, 5.100.82.38+bdcom, 2.6.38-8-generic, x86_64: installed
GraphicsCard:
 Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller 
[8086:2a42] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:3627]
   Subsystem: Hewlett-Packard Company Device [103c:3627]
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MachineType: Hewlett-Packard HP Pavilion dv6 Notebook PC
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/usr/bin/zsh
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic 
root=UUID=0e17c6bc-aa50-479f-8299-6d3ef20a0723 ro quiet splash vt.handoff=7
Renderer: Unknown
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to natty on 2011-04-12 (59 days ago)
dmi.bios.date: 11/12/2009
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.41
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 3627
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 18.50
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: N/A
dmi.modalias: 
dmi:bvnHewlett-Packard:bvrF.41:bd11/12/2009:svnHewlett-Packard:pnHPPaviliondv6NotebookPC:pvrRev1:rvnHewlett-Packard:rn3627:rvr18.50:cvnHewlett-Packard:ct10:cvrN/A:
dmi.product.name: HP Pavilion dv6 Notebook PC
dmi.product.version: Rev 1
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2
version.ia32-libs: ia32-libs 20090808ubuntu13
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:0.0.16+git20110107+b795ca6e-0ubuntu7

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


** Tags: amd64 apport-bug compiz-0.9 natty running-unity ubuntu

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https://bugs.launchpad.net/bugs/795720

Title:
  mouse input/alt+tab stops working, restarts working (sometimes) after
  minimizing and restoring windows

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