Public bug reported:

When I try to listen to videos niether my speakers or headphones produce
sound at all.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: alsa-base 1.0.24+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC665 Analog [ALC665 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  mustafa    1499 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0900000 irq 50'
   Mixer name   : 'Intel IbexPeak HDMI'
   Components   : 'HDA:10ec0665,1028046c,00100003 
HDA:80862804,80860101,00100000'
   Controls      : 26
   Simple ctrls  : 12
Card1.Amixer.info:
 Card hw:1 'NVidia'/'HDA NVidia at 0xabefc000 irq 17'
   Mixer name   : 'Nvidia GPU 11 HDMI/DP'
   Components   : 'HDA:10de0011,10de0101,00100100'
   Controls      : 16
   Simple ctrls  : 4
Date: Thu May  5 23:22:31 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:NVidia failed
Symptom_Card: GF106 High Definition Audio Controller - HDA NVidia
Symptom_DevicesInUse: 1499
Symptom_Type: No sound at all
Title: [HDA-Intel - HDA NVidia, playback] No sound at all
UpgradeStatus: Upgraded to natty on 2011-04-29 (6 days ago)
dmi.bios.date: 11/18/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 0V2WG4
dmi.board.vendor: Dell Inc.
dmi.board.version: A05
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A05
dmi.modalias: 
dmi:bvnDellInc.:bvrA05:bd11/18/2010:svnDellInc.:pnXPSL701X:pvrA05:rvnDellInc.:rn0V2WG4:rvrA05:cvnDellInc.:ct8:cvrA05:
dmi.product.name: XPS L701X
dmi.product.version: A05
dmi.sys.vendor: Dell Inc.

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


** Tags: amd64 apport-bug natty running-unity

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https://bugs.launchpad.net/bugs/778260

Title:
  [HDA-Intel - HDA NVidia, playback] No sound at all

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