Public bug reported:
Binary package hint: pulseaudio
When using my notebook computer, a Compaq Presario C712nr, I have
experienced an issue in the Karmic Koala 9.10 beta where signals from
the motherboard of the computer are being sent to the speakers of the
notebook when audio is not actively being transmitted. Also, when audio
is not playing or when sound settings are changed (such as muting and
un-muting the system), there is audible popping coming from the speakers
that occurs periodically whenever the system is muted. Also, when sound
is eventually used, the first audio as it reinitializes lags for .50 to
1.0 seconds into the transmission.
I am uncertain if this is indeed an issue related with Pulseaudio, but
it seemed the most likely culprit I could discern having previously
encountered this issue with another computer several releases back.
ProblemType: Bug
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: matthew 1421 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0x52400000 irq 22'
Mixer name : 'Conexant CX20549 (Venice)'
Components : 'HDA:14f15045,103c30d9,00100100'
Controls : 18
Simple ctrls : 8
Date: Mon Oct 12 13:47:12 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: wl
Package: pulseaudio 1:0.9.19-0ubuntu1
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-13.44-generic
SourcePackage: pulseaudio
Uname: Linux 2.6.31-13-generic x86_64
** Affects: pulseaudio (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug audio pulseaudio uncertain-nature
--
PulseAudio channeling motherboard signal transmissions, popping audio, lagging
audio
https://bugs.launchpad.net/bugs/449723
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