Sound does not work on 12.04 (alpha); suspected regression

[Andrew]

Internal Speaker does not work (whether external speakers are plugged in or not), and External Speakers do not work either. I can't get any sound to work. I was peviously using 10.04 LTS and decided to try the 12.04 alpha. My sound was working in 10.04 even though both the internal speaker and external speaker output sound at the same time (so i unplugged the internal speaker as a easy solution). I plugged the internal speaker back in for this test since i could get no sound from the external one, but niether seem to work.

Relevant results from 'lspci':

00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)
04:00.0 Multimedia controller: Broadcom Corporation BCM70015 Video Decoder [Crystal HD]

Results from 'lsb_release -rd':
Description: Ubuntu precise (development branch)
Release: 12.04

andrew@ubuntu-desktop:~$ apt-cache policy alsa-driver
N: Unable to locate package alsa-driver
andrew@ubuntu-desktop:~$ apt-cache policy alsa
alsa:
  Installed: (none)
  Candidate: (none)
  Version table:

I tried using apport, but it also says that 'alsa' and 'alsa-driver' does not exist. Maybe thats the problem? Since there was at least some functionality in 10.04 with Gnome, i'm assuming that this is either a regression or something is not installed correctly.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.24+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-6.12-generic 3.2.0-rc6
Uname: Linux 3.2.0-6-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.90-0ubuntu1
Architecture: i386
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D3c', '/dev/snd/pcmC0D3p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfed94000 irq 45'
   Mixer name : 'Realtek ALC1200'
   Components : 'HDA:10ec0888,105b0d57,00100101'
   Controls : 21
   Simple ctrls : 10
CheckboxCommand: gst_pipeline_test -t 2 'audiotestsrc wave=sine freq=512 ! audioconvert ! audioresample ! gconfaudiosink'
CheckboxData: Internal Speaker does not work (whether external speakers are plugged in or not), and External Speakers do not work either. I can't get any sound to work.
CheckboxTest: audio/playback_auto
Date: Fri Dec 23 16:00:18 2011
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
PackageArchitecture: all
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=en_US.UTF-8
SourcePackage: alsa-driver
UpgradeStatus: Upgraded to precise on 2011-12-22 (0 days ago)
dmi.bios.date: 01/22/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080016
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: $(Model_Name)
dmi.board.vendor: FOXCONN
dmi.board.version: Ver 0.001
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080016:bd01/22/2010:svnHONHAIPRECISIONIND.CO.,LTD:pnNETBOXNT-410/510:pvrVer0.001:rvnFOXCONN:rn$(Model_Name):rvrVer0.001:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: NETBOX NT-410/510
dmi.product.version: Ver 0.001
dmi.sys.vendor: HON HAI PRECISION IND.CO.,LTD

[Launchpad Janitor (janitor)]

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