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

[Elimar Riesebieter]

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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