Public bug reported:

since 12:04 64bit internal speaker doesnt work anymore headphone output
works fine

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-36.57-generic 3.2.35
Uname: Linux 3.2.0-36-generic x86_64
NonfreeKernelModules: fglrx
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  falco      1731 F.... pulseaudio
 /dev/snd/controlC0:  falco      1731 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xd0320000 irq 43'
   Mixer name   : 'Analog Devices AD1882'
   Components   : 'HDA:11d41882,17aa3037,00100100'
   Controls      : 41
   Simple ctrls  : 24
Card1.Amixer.info:
 Card hw:1 'HDMI'/'HDA ATI HDMI at 0xd0010000 irq 44'
   Mixer name   : 'ATI R6xx HDMI'
   Components   : 'HDA:1002aa01,00aa0100,00100000'
   Controls      : 6
   Simple ctrls  : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Tue Jan 29 19:07:41 2013
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 
(20120823.1)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel failed
Symptom_Card: Built-in Audio - HDA Intel
Symptom_DevicesInUse:
 1731  1731  falco     F.... pulseaudio
 /dev/snd/controlC0:  falco     F.... pulseaudio
Symptom_Jack: Black Speaker, Internal
Symptom_Type: No sound at all
Title: [9088BUG, Analog Devices AD1882, Black Speaker, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/24/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 2RKT64AUS
dmi.board.name: LENOVO
dmi.board.vendor: LENOVO
dmi.board.version: NONE
dmi.chassis.asset.tag: ������������������
dmi.chassis.type: 3
dmi.chassis.vendor: LENOVO
dmi.chassis.version: NONE
dmi.modalias: 
dmi:bvnLENOVO:bvr2RKT64AUS:bd11/24/2011:svnLENOVO:pn9088BUG:pvrThinkCentreM57p:rvnLENOVO:rnLENOVO:rvrNONE:cvnLENOVO:ct3:cvrNONE:
dmi.product.name: 9088BUG
dmi.product.version: ThinkCentre M57p
dmi.sys.vendor: LENOVO

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


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

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https://bugs.launchpad.net/bugs/1109145

Title:
  [9088BUG, Analog Devices AD1882, Black Speaker, Internal] No sound at
  all

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