Public bug reported:

No Sound from speaker or headphone.
i tried all applications and sound tests, none worked

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: alsa-base 1.0.23+dfsg-1ubuntu4
ProcVersionSignature: Ubuntu 2.6.35-22.34-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', 
'/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', 
'/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1c', '/dev/snd/pcmC0D1p', 
'/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Card0.Amixer.info:
 Error: command ['amixer', '-c', '0', 'info'] failed with exit code 1: amixer: 
Mixer load hw:0 error: Invalid argument
 Card hw:0 'NVidia'/'HDA NVidia at 0xfe024000 irq 22'
   Mixer name   : 'Realtek ALC887'
   Components   : 'HDA:10ec0887,1458a002,00100302'
   Controls      : 38
Card0.Amixer.values: Error: command ['amixer', '-c', '0'] failed with exit code 
1: amixer: Mixer hw:0 load error: Invalid argument
Date: Sun Dec 19 09:59:12 2010
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SelectedCard: 0 NVidia HDA-Intel - HDA NVidia
SourcePackage: alsa-driver
Symptom: audio
Title: [Realtek ALC887] ALSA test tone not correctly played back
amixerStderr: a m i x e r :   M i x e r   h w : 0   l o a d   e r r o r :   I n 
v a l i d   a r g u m e n t
dmi.bios.date: 06/14/2010
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: FB
dmi.board.name: M68M-S2P
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: 
dmi:bvnAwardSoftwareInternational,Inc.:bvrFB:bd06/14/2010:svnGigabyteTechnologyCo.,Ltd.:pnM68M-S2P:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnM68M-S2P:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: M68M-S2P
dmi.sys.vendor: Gigabyte Technology Co., Ltd.

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


** Tags: amd64 apport-bug maverick

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https://bugs.launchpad.net/bugs/692116

Title:
  [Realtek ALC887] ALSA test tone not correctly played back

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