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[Igor Lopez <1432413@xxxxxxxxxxxxxxxxxx>]

I have to get another disk to test with vivid so it will take a few days
but my plan is to keep the 14.02 LTS for another few years and for the
moment does the problem occur only after a few minutes with an active
program on the desktop (if all windows are minimized does the problem
not occur) so it is not difficult to recreate it for troubleshooting
purpose.

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https://bugs.launchpad.net/bugs/1432413

Title:
  Synaptic Touchpad xevents are hijacked under X

Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  Synaptic Touchpad xevents are hijacked under X11.

  I have a problem with the synaptic touch-pad on my Acer Aspire that started around a week ago.
  The problem can be described as that there is a massive amount of xevents being generated and appearing to originate from the touch-pad even though the touch-pad is not used.
  I have tested the HW which seems to work fine.
  The test performed is to start a terminal session (Ctrl + Alt + 2) before the fault occurs and check the xevents by running
   ~$ sudo evtest /dev/input/eventX
  where the X to use is found in /proc/bus/input/devices and found by running
   ~$ cat /proc/bus/input/devices |grep mouse
  No matter how much the touch-pad is used will the console show the corresponding events which indicates that HW and driver works OK as long it is not under X

  When the problem has occurred (in Desktop mode) is it easy (but inconvenient) to get back to normal by key combo Fn+F7 twice, turn off touch-pad and then turn on again.
  And more, one can get unlucky in the sense that the generated events could click somewhere one do not want to click.
  During the problem is it impossible to use the mouse since it flies around (mostly going in a bottom to top of screen direction) but one can check the generated events using evtest again.

  How can I help troubleshooting the problem?

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg 1:7.7+1ubuntu8.1
  ProcVersionSignature: Ubuntu 3.16.0-31.43~14.04.1-generic 3.16.7-ckt5
  Uname: Linux 3.16.0-31-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.14.1-0ubuntu3.7
  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 Mar 15 19:51:13 2015
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  EcryptfsInUse: Yes
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation ValleyView Gen7 [8086:0f31] (rev 0e) (prog-if 00 [VGA controller])
     Subsystem: Acer Incorporated [ALI] Device [1025:0933]
  InstallationDate: Installed on 2015-02-21 (22 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  MachineType: Acer Aspire E3-112
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-31-generic root=UUID=a97d0b51-4244-48ca-ba87-bc3a38a8b62d ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/20/2014
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V1.08
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: R2
  dmi.board.vendor: Acer
  dmi.board.version: Type2 - A01 Board Version
  dmi.chassis.type: 10
  dmi.chassis.vendor: Chassis Manufacturer
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.08:bd08/20/2014:svnAcer:pnAspireE3-112:pvrV1.08:rvnAcer:rnR2:rvrType2-A01BoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
  dmi.product.name: Aspire E3-112
  dmi.product.version: V1.08
  dmi.sys.vendor: Acer
  version.compiz: compiz 1:0.9.11.3+14.04.20150122-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.56-1~ubuntu2
  version.libgl1-mesa-dri: libgl1-mesa-dri N/A
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx N/A
  version.xserver-xorg-core: xserver-xorg-core N/A
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
  version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
  xserver.bootTime: Sun Mar 15 18:59:07 2015
  xserver.configfile: /etc/X11/xorg.conf
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                1576 
   vendor                                     BOE
  xserver.version: 2:1.16.0-1ubuntu1.2~trusty2

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