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["Yang Kun \(YK\)" <kun.yang@xxxxxxxxxxxxx>]

** Changed in: linux (Ubuntu Precise)
     Assignee: Haitao Zhang (minipanda) => Adam Lee (adam8157)

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https://bugs.launchpad.net/bugs/992603

Title:
  [Lenovo E525, L430, 490Ms, b490, b580] Touchpad can become disabled
  after suspend/resume

Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” source package in Precise:
  Triaged
Status in “linux” source package in Quantal:
  Fix Released

Bug description:
  I've noticed that on some occasions after multiple suspend/resume
  cycles that the touchpad can become unresponsive.  When this occurrs,
  the trackpoint still functions well, but the touchpad and its buttons
  become useless.

  This seems to randomly occur.  I ran a 30 cycle test on this machine
  and didn't see the issue occur, but did after closing and opening the
  lid 3 times, allowing it to suspend between each closure and open.

  This has been seen on a couple systems only, (the other was the E320,
  IIRC) and has not been observed yet on other Lenovo machines.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-23-generic 3.2.0-23.36
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
  Uname: Linux 3.2.0-23-generic x86_64
  NonfreeKernelModules: fglrx
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu5
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 1: Generic_1 [HD-Audio Generic], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ubuntu     1592 F.... pulseaudio
   /dev/snd/controlC0:  ubuntu     1592 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Generic'/'HD-Audio Generic at 0xf0b44000 irq 47'
     Mixer name	: 'ATI R6xx HDMI'
     Components	: 'HDA:1002aa01,00aa0100,00100200'
     Controls      : 6
     Simple ctrls  : 1
  Card0.Amixer.values:
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Card1.Amixer.info:
   Card hw:1 'Generic_1'/'HD-Audio Generic at 0xf0b40000 irq 16'
     Mixer name	: 'Conexant CX20590'
     Components	: 'HDA:14f1506e,17aa21ea,00100000'
     Controls      : 8
     Simple ctrls  : 5
  Card29.Amixer.info:
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown'
     Mixer name	: 'ThinkPad EC (unknown)'
     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: Tue May  1 09:30:43 2012
  HibernationDevice: RESUME=UUID=4ab215b8-a44f-416a-b5ba-3cbac1678175
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: LENOVO 120024U
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=7be665df-e57e-4705-b25f-dc731dc08c68 ro quiet splash initcall_debug vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-23-generic N/A
   linux-backports-modules-3.2.0-23-generic  N/A
   linux-firmware                            1.79
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/14/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8IET33WW(1.06)
  dmi.board.asset.tag: Not Available
  dmi.board.name: 120024U
  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:bvr8IET33WW(1.06):bd07/14/2011:svnLENOVO:pn120024U:pvrThinkPadE525:rvnLENOVO:rn120024U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 120024U
  dmi.product.version: ThinkPad E525
  dmi.sys.vendor: LENOVO

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