Public bug reported:
I am not getting audio output on my two surround speakers; I do get it
on the two front speakers. When Ubuntu starts up, I hear the startup
sound on all four speakers. However, once Ubuntu starts, I hear no
sound on either of the surround speakers. The only exception is when I
ran "ubuntu-bug audio" - that was the only time I could hear sound from
the surround speakers after startup.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: alsa-base 1.0.24+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic x86_64
AlsaVersion:
Advanced Linux Sound Architecture Driver Version 1.0.24.
Compiled on Aug 25 2011 for kernel 2.6.38-11-generic (SMP).
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: eh 1241 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xefebc000 irq 42'
Mixer name : 'SigmaTel STAC9221 A1'
Components : 'HDA:83847680,102801ab,00103201'
Controls : 21
Simple ctrls : 14
Date: Sun Oct 2 12:17:45 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
PackageArchitecture: all
ProcEnviron:
LANGUAGE=en_US:en
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel successful
Symptom_Card: Internal Audio - HDA Intel
Symptom_DevicesInUse:
1241/dev/snd/controlC0: eh F.... pulseaudio
AND
Symptom_Jack: Black Speaker, Rear
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: No sound at all
Title: [Dell DM051, SigmaTel STAC9221 A1, Black Speaker, Rear] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/15/2005
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A00
dmi.board.name: 0RD203
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA00:bd08/15/2005:svnDellInc.:pnDellDM051:pvr:rvnDellInc.:rn0RD203:rvr:cvnDellInc.:ct6:cvr:
dmi.product.name: Dell DM051
dmi.sys.vendor: Dell Inc.
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug natty running-unity
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https://bugs.launchpad.net/bugs/864712
Title:
[Dell DM051, SigmaTel STAC9221 A1, Black Speaker, Rear] No sound at
all
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