Jackd Problems -- alsa_pcm: xrun of at least 1227061150613.504 msecs

[Paulo Cavalcanti]

On Sat, Jan 3, 2009 at 5:13 AM, Jonathan Ryshpan <jonrysh at pacbell.net>wrote:

> On Wed, 2008-11-19 at 18:49 -0200, Paulo Cavalcanti wrote:
>
> > On Wed, Nov 19, 2008 at 1:28 AM, Jonathan Ryshpan <jonrysh at pacbell.net>
> wrote:
> >         In the past I've never had any problems running jackd.  Now I'm
> getting
> >         a very large number of messages reading:
> >                **** alsa_pcm: xrun of at least 1227061150613.504 msecs
> >         I'm running F9 on an x86_64 system with all updates installed.
> >         Pulseaudio is not running.  Jackd is started via qjackctl.  No
> past
> >         problems with audio beyond the usual conflicts between pulseaudio
> and
> >         firefox.
> >
> >         Questions:
> >         (1) What exactly does this message mean?  An "xrun" is a buffer
> under-
> >         or over-run -- but what does the time interval represent?
> >
> >         (2) Whatever the time interval means, it looks rather large.
> >         1227061150613.504 msec is many days (or maybe years if msec means
> >         millisec and not microsec)  This looks like a misconfiguration of
> some
> >         kind or a missing component.  Any idea what it might be?
> >
> >
> > The solution depends on your card (I have an Intel onboard card).
> > But this material may give you an idea on what you can try:
> >
> >
> http://people.atrpms.net/~pcavalcanti/alsa-1.0.15rc2_snd-hda-intel.html#jack<http://people.atrpms.net/%7Epcavalcanti/alsa-1.0.15rc2_snd-hda-intel.html#jack>
>
> Thanks for the very useful pointer.  Now I am stuck on what ought to be
> a very simple problem:  What "option"s can be given to my own driver (or
> generally any alsa driver)?  My own driver appears to be snd_intel8x0,
> which is documented at
>        http://www.alsa-project.org/main/index.php/Matrix:Module-intel8x0
> Unfortunately the "parm:"s (supposing these the possible arguments to an
> "option" statement in modules.conf) don't seem to include all possible
> options to be applied to this module.
>
> Sorry for being so dense - jon
>
>

 modinfo snd_intel8x0


-- 
Paulo Roma Cavalcanti
LCG - UFRJ
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