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

[Bailin Deng]

I upgraded to kernel  2.6.30, but the problem remained.

I think this is a bug of alsa instead of pulseaudio. 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.

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
> or upgrade your kernel to at least 2.6.30.
>
> I hereby merge your bug with 534801. And please let us know whether
> you could fix it like described above ;-)
>
>> I also checked the /var/log/syslog,  and found pulseaudio reporting
>> problems from alsa:
>>
>> Sep  5 09:06:01 dbl-pc pulseaudio[3689]: alsa-sink.c: Error opening
>> PCM device front:0: Device or resource busy
>> Sep  5 09:06:01 dbl-pc pulseaudio[3689]: alsa-sink.c: Error opening
>> PCM device front:0: Device or resource busy
>> Sep  5 11:03:31 dbl-pc pulseaudio[3689]: alsa-sink.c: Increasing
>> wakeup watermark to 30.00 ms
> [...]
>>
>> 2009/9/5 Elimar Riesebieter <riesebie at lxtec.de>:
>> > * Bailin Deng [090905 08:19 +0200]
>> >> I am using squeeze on a Thinkpad R61 with AD1984 audio chipset. After
>> >> a recent upgrade, the audio output freezes for a short time (about 0.1
>> >> sec) every a few seconds. The time intervals between each "freeze"
>> >> event varies from 10 secs to about 40 secs. When playing a video or
>> >> audio file, the playback hangs for a short time whenever such audio
>> >> freeze event happens, and becomes laggy and annoying.
>> >
>> > Which applications did you run recognizing this behaviour?
>> >
>> > I am running sid on a t61p with exactly the same chipset and no
>> > probs at all. There seems to be a problem either with your kernel or
>> > with your whatever soundserver you use. Not enough diskspace could
>> > be a reason as well. Could you please check your /var/log/syslog for
>> > reasonable errors? You can grep the file i.e. for audio or alsa.
>
> Elimar
>
> --
>  Planung:
>  Ersatz des Zufalls durch den Irrtum.
>                                -unknown-
>
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