Public bug reported:

Sound stopped working, Volume level indicator in volume control below Port, 
Front Left Front Right is changing.
ASIDE: Why can't About tab be added to Volume Control or a title line to give 
it a proper name as Ubuntu has at least 3 different volume controls. viz Mixer 
and PulseAudio Volume Control and PAVcontrol and AlsaMixer v1.0.25

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
Uname: Linux 3.2.0-29-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu12
Architecture: i386
Card0.Amixer.info:
 Card hw:0 'I82801DBICH4'/'Intel 82801DB-ICH4 with STAC9750,51 at irq 5'
   Mixer name   : 'SigmaTel STAC9750,51'
   Components   : 'AC97a:83847650'
   Controls      : 36
   Simple ctrls  : 23
Card1.Amixer.info:
 Card hw:1 'U0x46d0x804'/'USB Device 0x46d:0x804 at usb-0000:00:1d.7-3, high 
speed'
   Mixer name   : 'USB Mixer'
   Components   : 'USB046d:0804'
   Controls      : 2
   Simple ctrls  : 1
Card1.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
   Capture channels: Mono
   Limits: Capture 0 - 6144
   Mono: Capture 6144 [100%] [30.00dB] [off]
Date: Wed Aug 22 05:56:17 2012
InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111011)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:I82801DBICH4 failed
Symptom_Card: Webcam C250 - USB Device 0x46d:0x804
Symptom_Type: No sound at all
Title: [ICH4 - Intel 82801DB-ICH4, playback] No sound at all
UpgradeStatus: Upgraded to precise on 2012-05-02 (111 days ago)
dmi.bios.date: 09/03/2004
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 0H2049
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvrA07:bd09/03/2004:svnDellInc.:pnLatitudeD505:pvr:rvnDellInc.:rn0H2049:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude D505
dmi.sys.vendor: Dell Inc.

** Affects: alsa-driver (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 precise

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https://bugs.launchpad.net/bugs/1039875

Title:
  [ICH4 - Intel 82801DB-ICH4, playback] No sound at all

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