Comment 0 for bug 839800

After fresh installation even stereo configuration is set. From the menu can be selected 4.0 configuration making the rear left and right speakers work, however, front center and LFE (subwoofer) do not emit any sound in any application. They can be only tested (and they are working within this command) by `speaker-test -D default -c6 -twav`.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: linux-image-3.0.0-9-generic 3.0.0-9.15
ProcVersionSignature: Ubuntu 3.0.0-9.15-generic 3.0.3
Uname: Linux 3.0.0-9-generic x86_64
NonfreeKernelModules: fglrx
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC670 Analog [ALC670 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: lukaschmela 1568 F.... pulseaudio
                      lukaschmela 3169 F.... npviewer.bin
 /dev/snd/pcmC0D0p: lukaschmela 3169 f...m npviewer.bin
 /dev/snd/timer: lukaschmela 3169 F.... npviewer.bin
CRDA: Error: [Errno 2] Adresář nebo soubor neexistuje
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf8600000 irq 43'
   Mixer name : 'Realtek ALC670'
   Components : 'HDA:10ec0670,1025038b,00100002'
   Controls : 26
   Simple ctrls : 15
Card1.Amixer.info:
 Card hw:1 'Generic'/'HD-Audio Generic at 0xf8120000 irq 44'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,00aa0100,00100200'
   Controls : 4
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Fri Sep 2 20:13:29 2011
HibernationDevice: RESUME=UUID=943a0f17-f0f5-4dc8-8690-910e4a5157ff
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110901)
MachineType: Acer Aspire 8943G
ProcEnviron:
 PATH=(custom, no user)
 LANG=cs_CZ.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-9-generic root=UUID=5a6c1031-1093-4c45-9e38-abbd07085899 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.0.0-9-generic N/A
 linux-backports-modules-3.0.0-9-generic N/A
 linux-firmware 1.60
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/11/2010
dmi.bios.vendor: Phoenix
dmi.bios.version: V1.06
dmi.board.name: SM83-CP
dmi.board.vendor: Acer
dmi.board.version: Not Applicable
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenix:bvrV1.06:bd08/11/2010:svnAcer:pnAspire8943G:pvrNotApplicable:rvnAcer:rnSM83-CP:rvrNotApplicable:cvnAcer:ct10:cvrN/A:
dmi.product.name: Aspire 8943G
dmi.product.version: Not Applicable
dmi.sys.vendor: Acer