Public bug reported:

  I had sound until I hit the mute button on the face of the laptop.
When I unmuted the sound did not return. I  went into console and
unmuted using alsamixer and unmuted from the audio panel icon. Even
after reboot i'm not getting sound. The only sound I heard was the first
beep sequence during the trouble-shooting scenario

I'm using Oneiric Ocelot

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: pulseaudio 1:1.0-0ubuntu3.1
ProcVersionSignature: Ubuntu 3.0.0-16.28-generic 3.0.17
Uname: Linux 3.0.0-16-generic i686
NonfreeKernelModules: wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu4
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf6ffc000 irq 47'
   Mixer name   : 'IDT 92HD73C1X5'
   Components   : 'HDA:111d7675,10280254,00100202'
   Controls      : 16
   Simple ctrls  : 10
Card1.Amixer.info:
 Card hw:1 'HDMI'/'HDA ATI HDMI at 0xf6dec000 irq 48'
   Mixer name   : 'ATI R6xx HDMI'
   Components   : 'HDA:1002aa01,00aa0100,00100000'
   Controls      : 4
   Simple ctrls  : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Wed Mar  7 01:42:48 2012
EcryptfsInUse: Yes
InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: pulseaudio
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel successful
Symptom_Card: Internal Audio - HDA Intel
Symptom_Jack: Speaker, Internal
Symptom_PulsePlaybackTest: PulseAudio playback test failed
Symptom_Type: No sound at all
Title: [Studio 1535, IDT 92HD73C1X5, Speaker, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/02/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A03
dmi.board.name: 0F700C
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvrA03:bd07/02/2008:svnDellInc.:pnStudio1535:pvr:rvnDellInc.:rn0F700C:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Studio 1535
dmi.sys.vendor: Dell Inc.

** Affects: pulseaudio (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 oneiric

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https://bugs.launchpad.net/bugs/948734

Title:
  [Studio 1535, IDT 92HD73C1X5, Speaker, Internal] No sound at all

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