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[bmaupin <kwakubm@xxxxxxxxx>]

Confirmed with latest 12.04 kernel (linux-image-3.2.0-54-generic) and
latest BIOS:

$ sudo dmidecode --type 0 | head -n 8
# dmidecode 2.11
SMBIOS 2.7 present.

Handle 0x000E, DMI type 0, 24 bytes
BIOS Information
 Vendor: LENOVO
 Version: H6ET90WW (2.08 )
 Release Date: 01/11/2013

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

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https://bugs.launchpad.net/bugs/1197869

Title:
  [Lenovo Thinkpad T430u] randomly locks up/freezes

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  System randomly locks up completely.  Screen is frozen, system is
  completely unresponsive.  No key combos have any effect (Ctrl-Alt-Del,
  Ctrl-Alt-Backspace, Ctrl-Alt-F1).  The only thing that works is
  holding down the power button until it turns off.

  I tried Alt + SysReq + REISUB (http://askubuntu.com/a/36717/18665)
  when it locks up, but it has no effect either.

  It normally does it about once a day, but this morning it locked up 3
  times in the past hour or so.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-48-generic 3.2.0-48.74
  ProcVersionSignature: Ubuntu 3.2.0-48.74-generic 3.2.46
  Uname: Linux 3.2.0-48-generic x86_64
  NonfreeKernelModules: wl
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu17.3
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  bryan      1922 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf1810000 irq 47'
     Mixer name	: 'Intel PantherPoint HDMI'
     Components	: 'HDA:10ec0269,17aa500c,00100203 HDA:80862806,80860101,00100000'
     Controls      : 31
     Simple ctrls  : 13
  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]
  CheckboxSubmission: 0f4e55dc6f3e211b5e23a7a40efd98d8
  CheckboxSystem: bb422ca46d02494cdbc459927a98bc2f
  Date: Thu Jul  4 10:18:48 2013
  HibernationDevice: RESUME=UUID=4afa8032-cfe5-45f4-a626-738ab33904ac
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
  MachineType: LENOVO 3351CTO
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-48-generic root=UUID=2d445ceb-b77f-4a11-b57b-9a9a7f59c222 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-48-generic N/A
   linux-backports-modules-3.2.0-48-generic  N/A
   linux-firmware                            1.79.4
  SourcePackage: linux
  StagingDrivers: rts_pstor mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/27/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: H6ET61WW (2.02 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 3351CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Win8 STD DPK TPG
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrH6ET61WW(2.02):bd08/27/2012:svnLENOVO:pn3351CTO:pvrThinkPadT430u:rvnLENOVO:rn3351CTO:rvrWin8STDDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 3351CTO
  dmi.product.version: ThinkPad T430u
  dmi.sys.vendor: LENOVO

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