Public bug reported:
After upgrade to 11.10, volume/sound output seemed normal, but after
adjusting the volume, the sound *almost* completely went away (I could
still barely hear it), and further (positive) volume adjustments did
nothing, nor did muting/unmuting.
After playing around with sound settings, I discovered that:
1) Adjusting balance would bring sound back immediately.
2) Adjusting sound lower would also result in the sound coming back at a
certain point, but that point would change if I adjusted the sound up (losing
the sound again), and then down again.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: alsa-base 1.0.24+dfsg-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: matt 2263 F.... pulseaudio
/dev/snd/controlC0: matt 2263 F.... pulseaudio
/dev/snd/pcmC0D0c: matt 2263 F...m pulseaudio
/dev/snd/pcmC0D0p: matt 2263 F...m pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf1c00000 irq 55'
Mixer name : 'Intel CougarPoint HDMI'
Components : 'HDA:10ec0665,1028050e,00100003
HDA:80862805,80860101,00100000'
Controls : 27
Simple ctrls : 13
Card1.Amixer.info:
Card hw:1 'Q9000'/'Logitech, Inc. QuickCam Pro 9000 at usb-0000:04:00.0-2,
high speed'
Mixer name : 'USB Mixer'
Components : 'USB046d:0990'
Controls : 2
Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'Mic',0
Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
Capture channels: Mono
Limits: Capture 0 - 3072
Mono: Capture 975 [32%] [21.80dB] [off]
Date: Mon Oct 10 09:08:19 2011
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
PackageArchitecture: all
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
UpgradeStatus: Upgraded to oneiric on 2011-10-09 (0 days ago)
dmi.bios.date: 02/15/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A01
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnDellInc.:bvrA01:bd02/15/2011:svnDellInc.:pnDellSystemXPSL502X:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr0.1:
dmi.product.name: Dell System XPS L502X
dmi.sys.vendor: Dell Inc.
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug oneiric running-unity
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https://bugs.launchpad.net/bugs/871744
Title:
Sound dies when adjusting volume or plugging headphones. Comes back
when adjusting balance in sound prefs.
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