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[Launchpad Bug Tracker <990938@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

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

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https://bugs.launchpad.net/bugs/990938

Title:
  Ubuntu 12.04 AMD64: [Lenovo Thinkpad Edge E220s] Hitting the
  Brightness Keys Causes the System to Hang

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  There is a fair bit unexpected behavior related with this bug so it's
  a bit hard to tie down, but it most certainly does not seem fixed.
  It's also not 100% deterministic, sometimes it goes bad on the first
  press, sometimes the 5th. It's also worse on 64bit installs. On a 32
  bit install you actuate the button more then a few times before it
  hangs. Also Ubuntu seems to detect the ACPI buttons as ASUS buttons. I
  have no idea who the ODM is, but I was fairly certain that Lenovo was
  in house, so perhaps this is a misdetect?

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-24-generic 3.2.0-24.37
  ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
  Uname: Linux 3.2.0-24-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu7
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  sos        1482 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xd1600000 irq 47'
     Mixer name	: 'Intel CougarPoint HDMI'
     Components	: 'HDA:14f1506e,17aa21e4,00100000 HDA:80862805,17aa21e4,00100000'
     Controls      : 14
     Simple ctrls  : 6
  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: Sun Apr 29 00:07:45 2012
  HibernationDevice: RESUME=UUID=e728a1d3-4a79-4651-919d-b6c52013e3ba
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 003: ID 064e:c219 Suyin Corp.
  MachineType: LENOVO 50382NU
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=4cba4098-4fba-444a-969b-b58463cbd168 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-24-generic N/A
   linux-backports-modules-3.2.0-24-generic  N/A
   linux-firmware                            1.79
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/15/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8JET41WW (1.35 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 50382NU
  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:bvr8JET41WW(1.35):bd02/15/2012:svnLENOVO:pn50382NU:pvrThinkPadEdgeE220s:rvnLENOVO:rn50382NU:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 50382NU
  dmi.product.version: ThinkPad Edge E220s
  dmi.sys.vendor: LENOVO

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