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[Bug 1258837] Re: [Dell Latitude E7440] ALPS touchpad keeps having state reset

 

I've disabled suspend on the laptop and continued to use the laptop so
that even the screensaver doesn't kick in. I've also removed resetafter
kernel parameter.

I booted the laptop with both kernels, ran "tail -f /var/log/kern.log"
in a terminal and left it running until I saw error messages (and when I
did, I ran "uname -a" to ensure I was running with the right kernel):

Running with Saucy's kernel:
Dec 18 23:46:52 wyvern kernel: [   12.393384] wlan0: associated
Dec 18 23:46:52 wyvern kernel: [   12.393405] IPv6: ADDRCONF(NETDEV_CHANGE)r wlan0: link becomes ready
Dec 18 23:51:35 wyvern kernel: [  295.053094] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 lost sync at byte 1
Dec 18 23:51:35 wyvern kernel: [  295.054161] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 lost sync at byte 1
Dec 18 23:51:35 wyvern kernel: [  295.055173] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 lost sync at byte 1
Dec 18 23:51:35 wyvern kernel: [  295.058165] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 - driver resynced.
^C
allanc@wyvern:~$ uname -a
Linux wyvern 3.11.0-14-generic #21-Ubuntu SMP Tue Nov 12 17:04:55 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

And running with the mainline kernel:
Dec 18 22:45:38 wyvern kernel: [  568.646133] wlan0: associated
Dec 18 23:37:13 wyvern kernel: [ 3662.160891] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 lost sync at byte 1
Dec 18 23:37:13 wyvern kernel: [ 3662.161842] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 lost sync at byte 1
Dec 18 23:37:13 wyvern kernel: [ 3662.162845] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 lost sync at byte 1
Dec 18 23:37:13 wyvern kernel: [ 3662.165944] psmouse serio1: DualPoint TouchPad at isa0060/serio1/input0 - driver resynced.
^C
allanc@wyvern:~$ uname -a
Linux wyvern 3.13.0-031300rc3-generic #201312061335 SMP Fri Dec 6 18:37:23 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

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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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