https://bugs.launchpad.net/ubuntu/+bug/783582

do you mean the bug is not fixed ?

https://bugs.launchpad.net/ubuntu/+bug/783582/comments/116

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https://bugs.launchpad.net/bugs/1052878

Title:
  [Aspire 4830TG, Conexant CX20588, Black Headphone Out, Right] No sound
  at all

Status in “alsa-driver” package in Ubuntu:
  New

Bug description:
  Sometimes HDMI OUt will work but intel onchip audio device would not
  work , be it headphone or speaker.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu1
  ProcVersionSignature: Ubuntu 3.2.0-30.48-generic 3.2.27
  Uname: Linux 3.2.0-30-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu13
  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:  dex        1723 F.... pulseaudio
   /dev/snd/pcmC0D3p:   dex        1723 F...m pulseaudio
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xd1c00000 irq 51'
     Mixer name : 'Intel CougarPoint HDMI'
     Components : 'HDA:14f1506c,1025054f,00100002 
HDA:80862805,80860101,00100000'
     Controls      : 29
     Simple ctrls  : 13
  Date: Wed Sep 19 08:58:06 2012
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Daemon 
not responding.
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
  Symptom_Card: Built-in Audio - HDA Intel PCH
  Symptom_DevicesInUse:
   1723  1723  dex       F.... pulseaudio
   /dev/snd/pcmC0D3p:   dex       F...m pulseaudio
  Symptom_Jack: Black Headphone Out, Right
  Symptom_Type: No sound at all
  Title: [Aspire 4830TG, Conexant CX20588, Black Headphone Out, Right] No sound 
at all
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/25/2011
  dmi.bios.vendor: Acer
  dmi.bios.version: V1.07
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: JM40_HR
  dmi.board.vendor: Acer
  dmi.board.version: Base Board Version
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.07
  dmi.modalias: 
dmi:bvnAcer:bvrV1.07:bd10/25/2011:svnAcer:pnAspire4830TG:pvrV1.07:rvnAcer:rnJM40_HR:rvrBaseBoardVersion:cvnAcer:ct10:cvrV1.07:
  dmi.product.name: Aspire 4830TG
  dmi.product.version: V1.07
  dmi.sys.vendor: Acer

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