kernel-packages team mailing list archive

[Andrew Sorensen <1268365@xxxxxxxxxxxxxxxxxx>]

While I'm not running Ubuntu, I can confirm that I had saw the same
issues with my T440s and it was a matter of the touchpad cable becoming
disconnected/connected when the "one button touchpad" is pressed. If you
only see the errors when you press the touchpad button, it's fair to say
we have the same issue.

You'll need to have the touchpad cable adjusted so that it always stays connected to the touchpad. In the interest of being able to provide further updates on how to fix this issue, please see this Ask Ubuntu answer:
http://askubuntu.com/questions/401072/touchpad-sometimes-not-working-after-click-on-thinkpad-t440s/417135?stw=2#417135

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https://bugs.launchpad.net/bugs/1268365

Title:
  [Lenovo Thinkpad t440s] Touchpad periodically stops working

Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  Every 15 minutes or so, the cursor stops reacting to input from the touchpad or trackpoint. Unfortunately this machine has a "clickpad" instead of separate buttons and so it is impossible to use the machine without the touchpad, which means that Ubuntu is virtually unusable. In Windows on the same machine there is no problem. In syslog you see:
  Jan 12 19:08:43 mv8 kernel: [ 8460.304134] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
  Jan 12 19:08:43 mv8 kernel: [ 8460.305321] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
  Jan 12 19:08:43 mv8 kernel: [ 8460.306606] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
  Jan 12 19:08:43 mv8 kernel: [ 8460.307792] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1
  Jan 12 19:08:43 mv8 kernel: [ 8460.309002] psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1

  WORKAROUND: sudo rmmod psmouse
  sudo modprobe psmouse

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-15-generic 3.11.0-15.23
  ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10
  Uname: Linux 3.11.0-15-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  jon        2119 F.... pulseaudio
   /dev/snd/controlC0:  jon        2119 F.... pulseaudio
  Date: Sun Jan 12 19:42:27 2014
  HibernationDevice: RESUME=UUID=b5d52deb-2d98-4e2e-bdd1-c34a0bd2d9f6
  InstallationDate: Installed on 2013-12-04 (38 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: LENOVO 20AQCTO1WW
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic.efi.signed root=UUID=c0877b82-2224-438f-be5b-11b343943067 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-15-generic N/A
   linux-backports-modules-3.11.0-15-generic  N/A
   linux-firmware                             1.116
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/12/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GJET64WW (2.14 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20AQCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: 0B98401 PRO
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrGJET64WW(2.14):bd11/12/2013:svnLENOVO:pn20AQCTO1WW:pvrThinkPadT440s:rvnLENOVO:rn20AQCTO1WW:rvr0B98401PRO:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 20AQCTO1WW
  dmi.product.version: ThinkPad T440s
  dmi.sys.vendor: LENOVO

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