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[Launchpad Bug Tracker <974897@xxxxxxxxxxxxxxxxxx>]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: alsa-driver (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/974897

Title:
  [4284BZ4, Conexant CX20590, Speaker, Internal] No sound at all,
  headphones work

Status in alsa-driver package in Ubuntu:
  Confirmed

Bug description:
  The internal speakers worked for about a couple of weeks after
  installing Ubuntu on this machine (ThinkPad W520). Now, either after
  an update or after using the 3.5mm jack in my dock, the speakers do
  not work anymore. I have taken the laptop out of its dock, still
  nothing. Plugging headphones in works. All the volumes are up in
  alsamixer, I don't know what else to try.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: alsa-base 1.0.24+dfsg-0ubuntu2
  ProcVersionSignature: Ubuntu 3.0.0-17.30-generic 3.0.22
  Uname: Linux 3.0.0-17-generic x86_64
  NonfreeKernelModules: nvidia
  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: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  felix      1783 F.... pulseaudio
   /dev/snd/controlC0:  felix      1783 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xd8420000 irq 27'
     Mixer name	: 'Conexant CX20590'
     Components	: 'HDA:14f1506e,17aa21cf,00100002 HDA:14f12c06,17aa2122,00100000'
     Controls      : 16
     Simple ctrls  : 10
  Card1.Amixer.info:
   Card hw:1 'NVidia'/'HDA NVidia at 0xd6000000 irq 11'
     Mixer name	: 'Nvidia GPU 11 HDMI/DP'
     Components	: 'HDA:10de0011,10de0101,00100100'
     Controls      : 16
     Simple ctrls  : 4
  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: Fri Apr  6 10:28:04 2012
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
  Symptom_Card: Internal Audio - HDA Intel PCH
  Symptom_DevicesInUse:
   1783  1783  felix     F.... pulseaudio
   /dev/snd/controlC0:  felix     F.... pulseaudio
  Symptom_Jack: Speaker, Internal
  Symptom_Type: No sound at all
  Title: [4284BZ4, Conexant CX20590, Speaker, Internal] No sound at all
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/27/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8BET52WW (1.32 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4284BZ4
  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:bvr8BET52WW(1.32):bd09/27/2011:svnLENOVO:pn4284BZ4:pvrThinkPadW520:rvnLENOVO:rn4284BZ4:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4284BZ4
  dmi.product.version: ThinkPad W520
  dmi.sys.vendor: LENOVO

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