Public bug reported:
After boot, for a period of 2 minutes, sometimes, there is a random
continuous switch between Speakers / Headphone with annoying pop sound
(ta-ta-ta-ta-ta-ta-ta...).
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-33.52-generic-pae 3.2.31
Uname: Linux 3.2.0-33-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu15
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: maann 1986 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfc500000 irq 47'
Mixer name : 'SigmaTel STAC9872AK'
Components : 'HDA:83847662,104d1e00,00100201
HDA:14f12c06,104d1700,00100000'
Controls : 14
Simple ctrls : 8
Date: Thu Nov 22 09:42:48 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=it_IT.UTF-8
SHELL=/bin/bash
LC_NUMERIC=en_GB.UTF-8
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Audio interno - HDA Intel
Symptom_Jack: Black Headphone Out, Left
Symptom_Type: Volume slider, or mixer problems
Title: [VGN-SZ61XN_C, SigmaTel STAC9872AK, Black Headphone Out, Left] volume
slider problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/27/2007
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: R0091S5
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnPhoenixTechnologiesLTD:bvrR0091S5:bd08/27/2007:svnSonyCorporation:pnVGN-SZ61XN_C:pvrJ002ULGQ:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VGN-SZ61XN_C
dmi.product.version: J002ULGQ
dmi.sys.vendor: Sony Corporation
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 precise running-unity
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https://bugs.launchpad.net/bugs/1081918
Title:
[VGN-SZ61XN_C, SigmaTel STAC9872AK, Black Headphone Out, Left] volume
slider problem
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