[Latitude D620, SigmaTel STAC9200, Speaker, Internal] No sound at all

[LostInSpace]

Sound does not work after upgrade from Ubuntu 11.10 to Ubuntu 12.04

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic i686
NonfreeKernelModules: wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu7
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: john 1867 F.... pulseaudio
 /dev/snd/controlC1: john 1867 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xefebc000 irq 44'
   Mixer name : 'SigmaTel STAC9200'
   Components : 'HDA:83847690,102801c2,00102201 HDA:14f12bfa,14f100c3,00090000'
   Controls : 14
   Simple ctrls : 7
Card1.Amixer.info:
 Card hw:1 'Q9000'/'Logitech, Inc. QuickCam Pro 9000 at usb-0000:00:1d.7-8.2, high speed'
   Mixer name : 'USB Mixer'
   Components : 'USB046d:0990'
   Controls : 2
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
   Capture channels: Mono
   Limits: Capture 0 - 3072
   Mono: Capture 765 [25%] [20.98dB] [on]
Date: Fri May 4 19:43:33 2012
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
PackageArchitecture: all
ProcEnviron:
 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:
 1867 1867 1224 john F.... pulseaudio
 /dev/snd/controlC1: john F.... pulseaudio
 /dev/snd/seq: timidity F.... timidity
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [Latitude D620, SigmaTel STAC9200, Speaker, Internal] No sound at all
UpgradeStatus: Upgraded to precise on 2012-04-27 (7 days ago)
dmi.bios.date: 04/03/2007
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.name: 0TD761
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA08:bd04/03/2007:svnDellInc.:pnLatitudeD620:pvr:rvnDellInc.:rn0TD761:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude D620
dmi.sys.vendor: Dell Inc.