Public bug reported:
Release 10.10
Only the front speakers now work in sound test. Previously (in 10.04)
all 4 speaks and the subwoofer responded correctly to a sound test.
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: alsa-base 1.0.23+dfsg-1ubuntu4
ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: mds 1553 F.... pulseaudio
/dev/snd/pcmC0D0c: mds 1553 F...m pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf7ff8000 irq 72'
Mixer name : 'Analog Devices AD1989B'
Components : 'HDA:11d4989b,10438372,00100300'
Controls : 48
Simple ctrls : 27
Card1.Amixer.info:
Card hw:1 'NVidia'/'HDA NVidia at 0xfbbfc000 irq 34'
Mixer name : 'Nvidia ID 10'
Components : 'HDA:10de0010,10de0101,00100100'
Controls : 0
Simple ctrls : 0
Card1.Amixer.values:
Date: Mon Nov 15 18:45:48 2010
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
PackageArchitecture: all
ProcEnviron:
PATH=(custom, user)
LANG=en_US.utf8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Title: Soundcard not detected
dmi.bios.date: 03/08/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1003
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P6T DELUXE V2
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr1003:bd03/08/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP6TDELUXEV2:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug maverick
--
5.1 sound no longer works after upgrade
https://bugs.launchpad.net/bugs/675813
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