Public bug reported:
Updated from 10.10 to 11.04. Never had a problem with sound before.
When no app plays sound, there's a faint high pich humming.
When an app is playing a sound, it is distorted, the distorsion doesn't change
when I move the volume sliders. (the sound is higher/lower but with the same
proportion of distorsion)
When playing a mp3 using deadbeef the music seems normal even with the
distorsion, on the other hand playing a sid music the sounds is really odd in
addition to the distorsion.
Flash video on chromium has the issue.
KDE sound notifications too.
Amarok as well.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: alsa-base 1.0.24+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-9.43-generic 2.6.38.4
Uname: Linux 2.6.38-9-generic i686
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: david 2358 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0x92220000 irq 48'
Mixer name : 'SigmaTel STAC9227'
Components : 'HDA:83847618,80862008,00100201'
Controls : 32
Simple ctrls : 23
Date: Mon May 9 00:26:40 2011
InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release Candidate i386
(20091020.2)
PackageArchitecture: all
ProcEnviron:
LANGUAGE=fr_FR
PATH=(custom, no user)
LANG=fr_FR.utf8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Audio interne - HDA Intel
Symptom_Jack: Pink Mic, Rear
Symptom_Type: Volume slider, or mixer problems
Title: [, SigmaTel STAC9227, Pink Mic, Rear] volume slider problem
UpgradeStatus: Upgraded to natty on 2011-05-02 (6 days ago)
dmi.bios.date: 11/02/2006
dmi.bios.vendor: Intel Corp.
dmi.bios.version: CO96510J.86A.5493.2006.1102.1728
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: DQ965GF
dmi.board.vendor: Intel Corporation
dmi.board.version: AAD41676-305
dmi.chassis.type: 2
dmi.modalias:
dmi:bvnIntelCorp.:bvrCO96510J.86A.5493.2006.1102.1728:bd11/02/2006:svn:pn:pvr:rvnIntelCorporation:rnDQ965GF:rvrAAD41676-305:cvn:ct2:cvr:
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 natty
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https://bugs.launchpad.net/bugs/779655
Title:
[, SigmaTel STAC9227, Green out, Rear] high pich humming when no sound
is played, distorted sound when sound is played
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