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[vik <896922@xxxxxxxxxxxxxxxxxx>]

I'm getting the same problem in 15.10 on a Lenovo Thinkpad Yoga S1.
Strange thing is it sometimes works fine for ages, then other times it
drops out every few seconds; enough to make it unusable.

syslog shows the following during a dropout:

Mar  1 16:07:54 vikyoga kernel: [26685.609961] psmouse serio1: TouchPad at isa0060/serio1/input0 lost synchronization, throwing 3 bytes away.
Mar  1 16:07:54 vikyoga kernel: [26686.120271] psmouse serio1: resync failed, issuing reconnect request
Mar  1 16:07:55 vikyoga kernel: [26686.967293] psmouse serio1: synaptics: queried max coordinates: x [..5708], y [..4698]
Mar  1 16:07:55 vikyoga kernel: [26687.012599] psmouse serio1: synaptics: queried min coordinates: x [1232..], y [1156..]
Mar  1 16:07:55 vikyoga kernel: [26687.012605] psmouse serio1: synaptics: quirked min/max coordinates: x [1232..5710], y [1156..4696]
Mar  1 16:08:09 vikyoga kernel: [26700.751279] psmouse serio1: TouchPad at isa0060/serio1/input0 lost synchronization, throwing 3 bytes away.
Mar  1 16:08:09 vikyoga kernel: [26701.264229] psmouse serio1: resync failed, issuing reconnect request
Mar  1 16:08:10 vikyoga kernel: [26701.947059] psmouse serio1: synaptics: Unable to query device.
Mar  1 16:08:10 vikyoga kernel: [26702.077439] psmouse serio1: Failed to deactivate mouse on isa0060/serio1
Mar  1 16:08:10 vikyoga kernel: [26702.241110] psmouse serio1: Failed to enable mouse on isa0060/serio1
Mar  1 16:08:14 vikyoga kernel: [26706.283941] psmouse serio1: synaptics: queried max coordinates: x [..5708], y [..4698]
Mar  1 16:08:15 vikyoga kernel: [26706.329401] psmouse serio1: synaptics: queried min coordinates: x [1232..], y [1156..]
Mar  1 16:08:15 vikyoga kernel: [26706.329406] psmouse serio1: synaptics: quirked min/max coordinates: x [1232..5710], y [1156..4696]
Mar  1 16:08:15 vikyoga kernel: [26706.413421] psmouse serio1: synaptics: Touchpad model: 1, fw: 8.1, id: 0x1e2b1, caps: 0xd002a3/0x940300/0x12f800/0x0, board id: 2911, fw id: 2560
Mar  1 16:08:15 vikyoga kernel: [26706.413429] psmouse serio1: synaptics: serio: Synaptics pass-through port at isa0060/serio1/input0
Mar  1 16:08:15 vikyoga kernel: [26706.466911] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input72
Mar  1 16:08:21 vikyoga kernel: [26712.360511] psmouse serio7: trackpoint: IBM TrackPoint firmware: 0x0e, buttons: 3/3
Mar  1 16:08:21 vikyoga kernel: [26712.641868] input: TPPS/2 IBM TrackPoint as /devices/platform/i8042/serio1/serio7/input/input73
Mar  1 16:08:13 vikyoga com.canonical.Unity.Scope.Home[16215]: message repeated 10 times: [ (unity-scope-home:23786): unity-scope-home-WARNING **: scope.vala:235: Failed to get list of remote scopes: Request failed with error 2]
Mar  1 16:08:23 vikyoga com.canonical.Unity.Scope.File.Gdrive[16215]: Search changed to: ''

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https://bugs.launchpad.net/bugs/896922

Title:
  Lenovo L520 - "psmouse.c: touchpad at isa0060/serio4/input0 lost sync"
  and stops working for seconds

Status in Linux:
  New
Status in Xserver Xorg Input Synaptics:
  New
Status in linux package in Ubuntu:
  Triaged
Status in xserver-xorg-input-synaptics package in Ubuntu:
  Confirmed

Bug description:
  Since Maverick, when using the touchpad, it's often not working and stucks for seconds, in short, it is unusesable. This bug still happens in Ubuntu 11.10 on a Lenovo L520 with 3.0.0-13-generic. Its a Synaptics touchpad, maybe it's kernel bug. Dmesg produces the following output:
  [14861.416567] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1
  [14861.417899] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1
  [14861.419232] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1
  [14861.420563] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1
  [14861.424233] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1
  [14861.424240] psmouse.c: issuing reconnect request
  [17240.238861] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 4
  [17240.240191] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1
  [17240.258248] psmouse.c: TouchPad at isa0060/serio4/input0 - driver resynched.
  [17695.950963] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1
  [17695.955414] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1
  [17695.956743] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1
  [17695.960402] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1
  [17695.961736] psmouse.c: TouchPad at isa0060/serio4/input0 lost sync at byte 1
  [17695.961740] psmouse.c: issuing reconnect request

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: linux-image-3.0.0-13-generic 3.0.0-13.22
  ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6
  Uname: Linux 3.0.0-13-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mathias   15841 F.... pulseaudio
  CRDA: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf0900000 irq 43'
     Mixer name	: 'Intel CougarPoint HDMI'
     Components	: 'HDA:10ec0269,17aa21de,00100100 HDA:80862805,80860101,00100000'
     Controls      : 24
     Simple ctrls  : 11
  Card29.Amixer.info:
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 8GHT26WW-1.080000'
     Mixer name	: 'ThinkPad EC 8GHT26WW-1.080000'
     Components	: ''
     Controls      : 1
     Simple ctrls  : 1
  Card29.Amixer.values:
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Date: Sun Nov 27 17:58:09 2011
  EcryptfsInUse: Yes
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  MachineType: LENOVO 785954G
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-13-generic root=UUID=cf5078bd-6bdb-4d1b-a1bb-92d20c5ac60d ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-13-generic N/A
   linux-backports-modules-3.0.0-13-generic  N/A
   linux-firmware                            1.60
  SourcePackage: linux
  StagingDrivers: rts_pstor mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/06/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8GET37WW (1.14 )
  dmi.board.name: 785954G
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr8GET37WW(1.14):bd10/06/2011:svnLENOVO:pn785954G:pvrThinkPadL520:rvnLENOVO:rn785954G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 785954G
  dmi.product.version: ThinkPad L520
  dmi.sys.vendor: LENOVO

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