Public bug reported:

In the past I have seen similar issues with this laptop when not turning
off the option to disable touchpad while typing, however with 12.04 this
still occurs even when that option is turned off. Essentially what
happens is the mouse (touchpad) will be working fine and then suddenly
just stop responding. Keyboard input still responds correctly. Logging
in/out does not fix the issue, a full restart seems to be required.

Please let me know if there is any additional information I can provide
to get this fixed. As you can imagine it is very frustrating/annoying
and sometimes even leads to lost data.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xorg 1:7.6+12ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-26.41-generic 3.2.19
Uname: Linux 3.2.0-26-generic x86_64
NonfreeKernelModules: fglrx
.tmp.unity.support.test.0:
 
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
CompizPlugins: 
[core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: compiz
Date: Mon Jul  2 11:17:33 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus: fglrx, 8.960, 3.2.0-26-generic, x86_64: installed
DpkgLog:
 
ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
GraphicsCard:
 Advanced Micro Devices [AMD] nee ATI RV730 XT [Mobility Radeon HD 4670] 
[1002:9488] (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:0272]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 
(20120425)
JockeyStatus:
 xorg:fglrx_updates - ATI/AMD proprietary FGLRX graphics driver (post-release 
updates) (Proprietary, Disabled, Not in use)
 xorg:fglrx - ATI/AMD proprietary FGLRX graphics driver (Proprietary, Enabled, 
In use)
MachineType: Dell Inc. Studio XPS 1640
ProcEnviron:
 LANGUAGE=en_CA:en
 PATH=(custom, no user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-26-generic 
root=UUID=353230a3-7509-4077-9542-735a33dfae3b ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
XorgLogOld:
 
dmi.bios.date: 07/23/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A10
dmi.board.name: 0Y536R
dmi.board.vendor: Dell Inc.
dmi.board.version: A10
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A10
dmi.modalias: 
dmi:bvnDellInc.:bvrA10:bd07/23/2009:svnDellInc.:pnStudioXPS1640:pvrA103:rvnDellInc.:rn0Y536R:rvrA10:cvnDellInc.:ct8:cvrA10:
dmi.product.name: Studio XPS 1640
dmi.product.version: A103
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.7.8-0ubuntu1
version.fglrx-installer: fglrx-installer N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3.1
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2
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

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


** Tags: amd64 apport-bug compiz-0.9 precise regression-update ubuntu

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which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1020143

Title:
  After installing Ubuntu 12.04 my laptop touchpad randomly stops
  responding

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https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1020143/+subscriptions

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