Public bug reported:

I have Ubuntu 10.10 on a separate drive as Win7, and I boot into Win7
just fine and audio is functioning properly on using the same CA0106
Soundblaster audio card.  After a recent update I seem to have lost all
audio playback.  No application is capable of generating audio output,
and this includes system sounds.  I'm not muted, my speaker & audio
hardware is all enabled & turned on.  Please assist!

>From lsb_release -rd:
Description:    Ubuntu 10.10
Release:        10.10

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: alsa-base 1.0.23+dfsg-1ubuntu4
ProcVersionSignature: Ubuntu 2.6.35-27.48-generic 2.6.35.11
Uname: Linux 2.6.35-27-generic i686
NonfreeKernelModules: fglrx
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
Card0.Amixer.info:
 Card hw:0 'CA0106'/'Audigy SE [SB0570] at 0xe800 irq 21'
   Mixer name   : 'CA0106'
   Components   : ''
   Controls      : 35
   Simple ctrls  : 18
Card1.Amixer.info:
 Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfeaec000 irq 43'
   Mixer name   : 'ATI R6xx HDMI'
   Components   : 'HDA:1002aa01,00aa0100,00100100'
   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: Tue Mar  8 17:48:48 2011
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SelectedCard: 0 CA0106 CA0106 - CA0106
SourcePackage: alsa-driver
Symptom: audio
Title: [CA0106 - CA0106] ALSA test tone not correctly played back
dmi.bios.date: 11/12/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A10
dmi.board.name: 0F896N
dmi.board.vendor: Dell Inc.
dmi.board.version: A03
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvrA10:bd11/12/2009:svnDellInc.:pnInspiron546:pvr:rvnDellInc.:rn0F896N:rvrA03:cvnDellInc.:ct3:cvr:
dmi.product.name: Inspiron 546
dmi.sys.vendor: Dell Inc.

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


** Tags: apport-bug i386 maverick

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https://bugs.launchpad.net/bugs/731660

Title:
  [Ubuntu 10.10 0 - Soundblaster CA0106] ALSA test tone not correctly
  played back & no sound playing in any application, including system
  sounds

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