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[sillyxone <1258837@xxxxxxxxxxxxxxxxxx>]

Dell E7440, Ubuntu 14.04 with latest updates (as of 6/11). The touchpad
works fine normally, but when holding down a key (e.g. Ctrl, Shift, Alt,
A, C, ...) and keeping the finger still on the touchpad, the mouse
cursor jumping randomly up and down around its original location (within
about 100 pixels most of the time, vertically only). Had the hardware
replaced by Dell (mainboard, keyboard, and touchpad), problem is still
there but less severe (only happen after some usage time, and the cursor
jumping only within a few pixels).

Another symptom is application get closed randomly while I was just
moving the mouse cursor around using the touchpad. I always have tap-to-
click disabled, so I'm not sure how this happened. But everytime it
happens, I see these messages in dmesg:

[38200.256430] psmouse serio1: GlidePoint at isa0060/serio1/input0 lost sync at byte 1
[38200.257417] psmouse serio1: GlidePoint at isa0060/serio1/input0 lost sync at byte 1
[38200.258472] psmouse serio1: GlidePoint at isa0060/serio1/input0 lost sync at byte 1
[38200.261540] psmouse serio1: GlidePoint at isa0060/serio1/input0 - driver resynced.
[38211.751168] psmouse serio1: GlidePoint at isa0060/serio1/input0 lost sync at byte 1
[38211.752167] psmouse serio1: GlidePoint at isa0060/serio1/input0 lost sync at byte 1
[38211.755260] psmouse serio1: GlidePoint at isa0060/serio1/input0 - driver resynced.
[38211.756254] psmouse serio1: GlidePoint at isa0060/serio1/input0 lost sync at byte 1
[38211.766268] psmouse serio1: GlidePoint at isa0060/serio1/input0 - driver resynced.

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https://bugs.launchpad.net/bugs/1258837

Title:
  [Dell Latitude E7440] ALPS touchpad keeps having state reset

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  This is very similar to bug 1048258 - the mouse cursor keeps on
  jumping around, and these messages appear in the log when it hapepns:

  Dec  7 21:57:26 wyvern kernel: [  648.133841] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 lost sync at byte 1
  Dec  7 21:57:26 wyvern kernel: [  648.134868] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 lost sync at byte 1
  Dec  7 21:57:26 wyvern kernel: [  648.137921] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 - driver resynced.
  Dec  7 21:57:26 wyvern kernel: [  648.138852] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 lost sync at byte 1
  Dec  7 21:57:26 wyvern kernel: [  648.148833] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 - driver resynced.

  The touchpad is recognised as a "AlpsPS/2 ALPS DualPoint TouchPad".
  This is occurring with Ubuntu 13.10, though I have also seen this
  behaviour in the version of Linux Mint based on Ubuntu 13.04.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-14-generic 3.11.0-14.21
  ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
  Uname: Linux 3.11.0-14-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  allanc     1852 F.... pulseaudio
   /dev/snd/controlC0:  allanc     1852 F.... pulseaudio
  Date: Sat Dec  7 22:19:22 2013
  HibernationDevice: RESUME=UUID=a2a36712-35de-4e20-9d1a-df3520f401ec
  InstallationDate: Installed on 2013-12-07 (0 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: Dell Inc. Latitude E7440
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-14-generic.efi.signed root=UUID=d03a42e6-0dea-4969-a682-eb4d255abc70 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-14-generic N/A
   linux-backports-modules-3.11.0-14-generic  N/A
   linux-firmware                             1.116
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/14/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A03
  dmi.board.name: 07F3F4
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA03:bd08/14/2013:svnDellInc.:pnLatitudeE7440:pvr01:rvnDellInc.:rn07F3F4:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E7440
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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