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[christian c <1429933@xxxxxxxxxxxxxxxxxx>]

same problem since lubuntu 14.10.
still existing after upgrade to 15.04.

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https://bugs.launchpad.net/bugs/1429933

Title:
  [Acer Aspire V3-371] Sometimes, cursor jumps around if touchpad is in
  use

Status in linux package in Ubuntu:
  Triaged

Bug description:
  If using the touchpad, the cursor jumps around on the screen. It seems
  to me that there are also some events (like clicks) that get fired.

  This issue can be worked around by disabling and enabling the touchpad
  (pressing Fn+F7 twice) but it will reappear after a certain amount of
  time.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-31-generic 3.16.0-31.41
  ProcVersionSignature: Ubuntu 3.16.0-31.41-generic 3.16.7-ckt5
  Uname: Linux 3.16.0-31-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  tobbe      2027 F.... pulseaudio
   /dev/snd/controlC0:  tobbe      2027 F.... pulseaudio
  CurrentDesktop: LXDE
  Date: Mon Mar  9 18:36:06 2015
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-01-14 (53 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: Acer Aspire V3-371
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-31-generic.efi.signed root=UUID=65b5fce9-8d44-4a6c-923f-4eff3e0a9d1c ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-31-generic N/A
   linux-backports-modules-3.16.0-31-generic  N/A
   linux-firmware                             1.138.1
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/19/2014
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V1.15
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Aspire V3-371
  dmi.board.vendor: Acer
  dmi.board.version: V1.15
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.15
  dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.15:bd11/19/2014:svnAcer:pnAspireV3-371:pvrV1.15:rvnAcer:rnAspireV3-371:rvrV1.15:cvnAcer:ct10:cvrV1.15:
  dmi.product.name: Aspire V3-371
  dmi.product.version: V1.15
  dmi.sys.vendor: Acer

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