[USB-Audio - USB AUDIO , playback] No sound at all

[logan_fre]

Logitech USB Speakers do not produce sound. Buttons on speakers correctly control volume in "Sound Preferences", and speaker light is on indicating power. Everything seems to be working, but no sound is produced.

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
NonfreeKernelModules: fglrx
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: freijo 1288 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xfe7f0000 irq 16'
   Mixer name : 'Realtek ALC888'
   Components : 'HDA:10ec0888,1565821b,00100001'
   Controls : 33
   Simple ctrls : 19
Card1.Amixer.info:
 Card hw:1 'default'/'USB AUDIO at usb-0000:00:12.0-3, full speed'
   Mixer name : 'USB Mixer'
   Components : 'USB1130:1620'
   Controls : 2
   Simple ctrls : 1
Card2.Amixer.info:
 Card hw:2 'HDMI'/'HDA ATI HDMI at 0xfe9e8000 irq 19'
   Mixer name : 'ATI RS690/780 HDMI'
   Components : 'HDA:1002791a,00791a00,00100000'
   Controls : 4
   Simple ctrls : 1
Card2.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Wed Jun 15 18:37:25 2011
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:default failed
Symptom_Card: RS880 Audio Device [Radeon HD 4200] - HDA ATI HDMI
Symptom_DevicesInUse: 1288 1288/dev/snd/pcmC0D0c: freijo 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: 07/08/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080015
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: TA785G3 HD
dmi.board.vendor: BIOSTAR Group
dmi.chassis.asset.tag: None
dmi.chassis.type: 3
dmi.chassis.vendor: BIOSTAR Group
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080015:bd07/08/2010:svnBIOSTARGroup:pnTA785G3HD:pvr:rvnBIOSTARGroup:rnTA785G3HD:rvr:cvnBIOSTARGroup:ct3:cvr:
dmi.product.name: TA785G3 HD
dmi.sys.vendor: BIOSTAR Group

[Launchpad Janitor (janitor)]

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

[Raymond (superquad-vortex2)]

Simple mixer control 'PCM',0
  Capabilities: pvolume pswitch pswitch-joined penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 17152
  Mono:
  Front Left: Playback 17152 [100%] [67.00dB] [off]
  Front Right: Playback 17152 [100%] [67.00dB] [off

https://launchpadlibrarian.net/109347208/mute_master_donot_mute_pcm_for_ac97.patch

[Raymond (superquad-vortex2)]

please provide pulseaudio verbose log

https://wiki.ubuntu.com/PulseAudio/Log

[logan_fre (logan-fre)]

A desktop without sound is not very useful to most people. Needless to say, I moved on from Ubuntu desktop over a year ago.

[Raymond (superquad-vortex2)]

you have to un mute the playback switch of usb speaker

 67 dB is extremely high for playback volume

post the output of alsa-info.sh

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "keep pcm playback switch unmute" of this bug report has been identified as being a patch. The ubuntu-reviewers team has been subscribed to the bug report so that they can review the patch. In the event that this is in fact not a patch you can resolve this situation by removing the tag 'patch' from the bug report and editing the attachment so that it is not flagged as a patch. Additionally, if you are member of the ubuntu-reviewers team please also unsubscribe the team from this bug report.

[This is an automated message performed by a Launchpad user owned by Brian Murray. Please contact him regarding any issues with the action taken in this bug report.]

[David Henningsson (diwic)]

Hi Raymond,

Your patch only affects the state of PCM when PulseAudio is muted, so it is unlikely to fix this particular problem.
On other systems it might prevent proper muting or powersaving, so I believe it should not be applied.

[Raymond (superquad-vortex2)]

this is just a workaround

the bug is pulseaudio mute the "PCM playack switch" but never unmute

no audio for most ac97 2.1 codeces and those early hda codecs (compatible with ac97 mixer) with pcm playback switch

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 11.04 (natty) reached end-of-life on October 28, 2012.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test.

[Launchpad Janitor (janitor)]

[Expired for pulseaudio (Ubuntu) because there has been no activity for 60 days.]