[SATELLITE P850, Realtek ID 280, Speaker, Internal] No sound at all

[Styrmand]

Description: Ubuntu 12.04 LTS
Release: 12.04

Dual-boot installation.
Sound works fine under Windows 7 (64)
Under Ubuntu 12.04 (64bit) there is, and has never been a sound. It is a brand new computer, so i have no experiences with previous versions of Ubuntu.

When i look in my sound settings, there is only one device for output. My PC has two devices, one for HDMI and one for analog output. It shows the analog output (Built-in Audio)
I have googled and tried to find a solution - with no luck so far

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-27.43-generic 3.2.21
Uname: Linux 3.2.0-27-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu11
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: HDA Generic [HDA Generic]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ole 1726 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xf7f10000 irq 46'
   Mixer name : 'Intel PantherPoint HDMI'
   Components : 'HDA:10ec0280,1179fb04,00100003 HDA:80862806,1179fb30,00100000'
   Controls : 11
   Simple ctrls : 5
Date: Thu Aug 2 16:49:42 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=da_DK.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_DevicesInUse:
 1726 ole F.... pulseaudio
     PID ACCESS COMMAND
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [SATELLITE P850, Realtek ID 280, Speaker, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/27/2012
dmi.bios.vendor: TOSHIBA
dmi.bios.version: 1.20
dmi.board.asset.tag: *
dmi.board.name: QFKAA
dmi.board.vendor: TOSHIBA
dmi.board.version: 1.00
dmi.chassis.asset.tag: *
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: *
dmi.modalias: dmi:bvnTOSHIBA:bvr1.20:bd03/27/2012:svnTOSHIBA:pnSATELLITEP850:pvrPSPKAE-00E001N5:rvnTOSHIBA:rnQFKAA:rvr1.00:cvnTOSHIBA:ct10:cvr*:
dmi.product.name: SATELLITE P850
dmi.product.version: PSPKAE-00E001N5
dmi.sys.vendor: TOSHIBA
mtime.conffile..etc.modprobe.d.alsa.base.conf: 2012-08-02T12:29:05.091529

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.