Ubuntu
alsa-driver package

[USB-Audio - USB PnP Sound Device, playback] Playback problem

Bug #928790 reported by Tim Fuchs
16
This bug affects 3 people
Affects Status Importance Assigned to Milestone
alsa-driver (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

Playback is fine in Totem, banshee, Rhythmbox etc.

Playback uses my internal Notbook speakers when using Firefox or Chromium, regardless whether it's flash or HTML5 native playback

I want all playback to happen through the usb interface as I have chose in sound preferences

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.24+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-14.23-generic-pae 3.2.3
Uname: Linux 3.2.0-14-generic-pae i686
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.91-0ubuntu1
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: tim 1803 F.... pulseaudio
 /dev/snd/controlC1: tim 1803 F.... pulseaudio
 /dev/snd/pcmC1D0c: tim 1803 F...m pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf6ffc000 irq 47'
   Mixer name : 'SigmaTel STAC9228'
   Components : 'HDA:83847616,10280209,00100201'
   Controls : 27
   Simple ctrls : 18
Card1.Amixer.info:
 Card hw:1 'Device'/'C-Media Electronics Inc. USB PnP Sound Device at usb-0000:00:1d.7-1.2, full spe'
   Mixer name : 'USB Mixer'
   Components : 'USB0ccd:0077'
   Controls : 7
   Simple ctrls : 3
CheckboxSubmission: 97fccc558e47f7a328efff58c421875d
CheckboxSystem: f7e8b2058e73d899cd2bf5b9df7c26dc
Date: Wed Feb 8 12:41:39 2012
EcryptfsInUse: Yes
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Device successful
Symptom_Card: Aureon Dual USB - USB PnP Sound Device
Symptom_PulsePlaybackTest: PulseAudio playback test failed
Symptom_SpeakerTestPulseStderr: A L S A l i b p c m . c : 2 2 1 7 : ( s n d _ p c m _ o p e n _ n o u p d a t e ) U n k n o w n P C M p u l s e
Symptom_Type: Only some of outputs are working
Title: [USB-Audio - USB PnP Sound Device, playback] Playback problem
UpgradeStatus: Upgraded to precise on 2011-09-28 (133 days ago)
dmi.bios.date: 11/19/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A14
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA14:bd11/19/2008:svnDellInc.:pnXPSM1330:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: XPS M1330
dmi.sys.vendor: Dell Inc.

Revision history for this message
Tim Fuchs (tim-fuchs) wrote :
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in alsa-driver (Ubuntu):
status: New → Confirmed
Revision history for this message
Mingming Ren (portis25) wrote :

I found a workaround from ubuntu-devel mailing list:

create /etc/asound.conf:

pcm.pulse {
     type pulse
}

ctl.pulse {
     type pulse
}

pcm.!default {
     type pulse
}

ctl.!default {
     type pulse
}

Then restart the browser.

Thanks Palo and Pete.

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