Public bug reported:
This is a vary funny bug to me. In fact I'm surprised that the sound
ever works at all. since it does not in window vista.The device is
Kensington Laptop dock with 7.1 surround sound. In between Ubuntu builds
it seems to work perfectly then not work at all. Its like 50/50 that a
new Ubuntu will run it.8 did not at first 9 ran it at first 10 on and of
functionality 11 ran it at first but as of June 2011 it does not without
a reinstall. The device shows up as 5.1 device some places on labels
when it is not. It runs as 7.1 when it works. I suspect the reson is
that the generic driver is not totally compatible with this odd sound
card labeled a s a 5.1 when it is 7.1. It would be nice if it kept
working continuously though between updates.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: alsa-base 1.0.24+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-10.44-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: ianadmin 1412 F.... pulseaudio
/dev/snd/controlC0: ianadmin 1412 F.... pulseaudio
/dev/snd/pcmC0D0c: ianadmin 1412 F...m pulseaudio
Card0.Amixer.info:
Card hw:0 'ICH7'/'Intel ICH7 with AD1981B at irq 23'
Mixer name : 'Analog Devices AD1981B'
Components : 'AC97a:41445374'
Controls : 28
Simple ctrls : 20
Card1.Amixer.info:
Card hw:1 'Audio'/'USB Audio at usb-0000:00:1d.7-1.1.4, full speed'
Mixer name : 'USB Mixer'
Components : 'USB0d8c:0006'
Controls : 12
Simple ctrls : 7
Date: Sat Jun 18 15:37:46 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (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:Audio failed
Symptom_Card: Storm HP-USB500 5.1 Headset - USB Audio
Symptom_DevicesInUse:
1412 1412 1412/dev/snd/controlC0: ianadmin F.... pulseaudio
/dev/snd/pcmC0D0c: ianadmin F...m pulseaudio
Symptom_Type: No sound at all
Title: [USB-Audio - USB Audio, playback] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/30/2006
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A11
dmi.board.name: 0PY186
dmi.board.vendor: Dell Inc.
dmi.chassis.asset.tag: DFS064109
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA11:bd11/30/2006:svnDellInc.:pnOptiPlexGX520:pvr:rvnDellInc.:rn0PY186:rvr:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex GX520
dmi.sys.vendor: Dell Inc.
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 natty running-unity
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https://bugs.launchpad.net/bugs/799236
Title:
[USB-Audio - USB Audio, playback] No sound at all On and off
functionality between updates, random mucking around, and restarts.
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