[Pkg-pulseaudio-devel] Bug#545083: [Pkg-alsa-devel] Bug#545083: alsa-base: Audio output lags on Intel HD Audio with AD1984 chipset

[Bailin Deng]

2009/9/6 Elimar Riesebieter <riesebie at lxtec.de>:
> * Bailin Deng [090906 08:33 +0200]
>> I upgraded to kernel  2.6.30, but the problem remained.
>
> I see you don't have much experience in emailing, because you're
> always topposting, which makes reading your answers somewhat
> terrible.
> http://www.google.de/search?hl=de&source=hp&ie=ISO-8859-1&q=topposting&btnG=Google-Suche&meta=
Thank you for the pointer. Hopefully I can now make it more readable:)

>
>> I think this is a bug of alsa instead of pulseaudio.
>
> Increasing the watermark is responsible for laaging your sound
> output. Please notice, that alsa-sink.c is a file of the pulseaudio
> source package. Please point me to the possible reason if I am
> wrong.
>
>> All my applications that directly use alsa as output have such
>> problem. The problem has appeared __BEFORE__ I installed
>> pulseaudio on my system.  So it should be something related to
>> alsa.
>
> Hmm, but not that lagging. As said before on my AD1984 chipset all
> sounds well. Maybe you customized your pulseaudio setting in a wrong
> way? For testing you should purge all pulseaudio packages, check
> lagging and syslog and come back with the error infos to this
> bugreport. Don't forget to backup your pulseaudio settings before.

Actually the lagging problem came BEFORE I installed pulseaudio. I
just installed pulseaudio in order to use skype. Surprisingly, after I
purge the pulseaudio packages, the problem is gone.  It is really
strange.  I also remember that BEFORE I installed pulseaudio, for
several times I checked the /var/log/syslog file, hoping to find out
the reason for the lagging problem. And I always found a lot of error
messages about  wireless network, like "ath5k phy0: noise floor
calibration timeout (2412MHz)". And now there is no such error message
from ath5k, and the audio is also working fine. I am not sure whether
there is any connection between the ath5k error and the audio lagging.
But anyway, I am glad that the audio finally works now.

>
> This is a way of sensefull debugging.
>
>
>> 2009/9/6 Elimar Riesebieter <riesebie at lxtec.de>:
>> > severity 545083 normal
>> > reassign 545083 pulseaudio
>> > merge 545083 534801
>> > thanks
>> >
>> > * Bailin Deng [090905 22:29 +0200]
>> >> I got this problem with mplayer, vlc, audacious, skype, and adobe
>> >> flash player plugin (basically any application that use alsa as audio
>> >> output).  I also have pulseaudio in my system(because skype requires
>> >> that). But the problem already existed before I stalled pulseaudio.
>> >> Besides, I am using 2.6.26. Does the current alsa package require a
>> >> high kernel version?
>> >
>> > Yes. According to
>> > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=534801
>> > you should either fix it by changing the hal module in
>> > /etc/pulse/default.pa to:
>> > ad-module module-hal-detect tsched=0
>
> Did you tried that as well?
>
>> > or upgrade your kernel to at least 2.6.30.
>
> Elimar
>
> --
>  Experience is something you don't get until
>  just after you need it!
>
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