Public bug reported:

Ubuntu 11.04: since downloading in Update Manager the recent update of
AppArmor and a power crash today, my pc seems to have lost all audio
including Skype?

Help!

Linux Ubuntu Rocks.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: alsa-base 1.0.24+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-15.60-generic 2.6.38.8
Uname: Linux 2.6.38-15-generic i686
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  ron        1726 F.... pulseaudio
 /dev/snd/pcmC0D0p:   ron        1726 F...m pulseaudio
Card0.Amixer.info:
 Card hw:0 'ICH6'/'Intel ICH6 with AD1980 at irq 23'
   Mixer name   : 'Analog Devices AD1980'
   Components   : 'AC97a:41445370'
   Controls      : 40
   Simple ctrls  : 29
CheckboxSubmission: 7c6e847d4427bade44123661d2ad5010
CheckboxSystem: 2a6f54df59af338184485e85cbcf0d32
Date: Sat Jun 16 11:11:24 2012
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_GB:en
 LANG=en_GB.utf8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:ICH6 failed
Symptom_Card: Internal Audio - Intel ICH6
Symptom_DevicesInUse:
 1726/dev/snd/controlC0:  ron       F.... pulseaudio
 AND
Symptom_Type: No sound at all
Title: [ICH4 - Intel ICH6, playback] No sound at all
UpgradeStatus: Upgraded to natty on 2012-05-10 (37 days ago)
dmi.bios.date: 03/16/2005
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A04
dmi.board.name: 0T7787
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvrA04:bd03/16/2005:svnDellInc.:pnPrecisionWorkStation370:pvr:rvnDellInc.:rn0T7787:rvr:cvnDellInc.:ct6:cvr:
dmi.product.name: Precision WorkStation 370
dmi.sys.vendor: Dell Inc.

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


** Tags: apport-bug i386 natty

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https://bugs.launchpad.net/bugs/1014013

Title:
  [ICH4 - Intel ICH6, playback] No sound at all

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