Public bug reported:
Trying to run 5.1 audio and not sound was coming from rear speakers. I
did went to the Pulse device config and confirmed that 5.1 profile is
used and when I tried to test the speakers, no sound are coming from RL
and RR speakers, center, left and right and sub are working fine.
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: alsa-base 1.0.23+dfsg-1ubuntu4
Uname: Linux 2.6.38-020638rc2-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: mahmoud 1753 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'NVidia'/'HDA NVidia at 0xfeaf4000 irq 20'
Mixer name : 'Realtek ALC880'
Components : 'HDA:10ec0880,1462e603,00100800'
Controls : 40
Simple ctrls : 21
CurrentDmesg:
[ 29.454244] EXT4-fs (loop0): re-mounted. Opts: errors=remount-ro,commit=0
[ 33.487102] EXT4-fs (loop0): re-mounted. Opts: errors=remount-ro,commit=0
Date: Sun Jan 23 10:42:24 2011
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
PackageArchitecture: all
ProcEnviron:
LANG=en_US.utf8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Title: Soundcard not detected
dmi.bios.date: 10/28/2008
dmi.bios.vendor: MS-7207
dmi.bios.version: V3.8
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: MS-7207PV
dmi.board.vendor: MSI
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:bvnMS-7207:bvrV3.8:bd10/28/2008:svnMSI:pnMS-7207PV:pvr:rvnMSI:rnMS-7207PV:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: MS-7207PV
dmi.sys.vendor: MSI
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug maverick
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https://bugs.launchpad.net/bugs/706631
Title:
Rear speakers not working in 5.1
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