Re: Inspiron 8200 and the CS4205

[Takashi Iwai <tiwai@suse.de>]

At Thu, 12 Sep 2002 13:16:36 -0400,
Stuffed Crust wrote:
> 
> [1  <text/plain; us-ascii (quoted-printable)>]
> On Thu, Sep 12, 2002 at 06:00:21PM +0200, Takashi Iwai wrote:
> > > Here is what i've learned about all my experiences so far with the
> > > Inspiron 8200 and the CS4205:
> > 
> > which driver?  maestro3 or intel8x0?
> > and which kernel are you using?
> 
> I have similar problems with my Inspiron 4100.
> 
> It has an ICH3 (i830M -- intel8x0) and a CS4205 codec.
> 
> Basically, some apps stutter immediately on playback (kinda like the
> helicopter noise he was describing), and others start okay, but sometimes
> start and stop stuttering seemingly at random in mid-stream.
> 
> in particular, mpg321 (via libao) seems to do this fairly often, while
> ogg123 (also via libao) seems to be immune.  SDL apps (using the alsa09
> backend) are intermittent, as are a couple of my own creations that hook
> into alsa directly.
> 
> This has been fairly consitent across multiple ALSA and kernel releases,
> including alsa 0.9.0rc3 and current cvs, and kernel 2.4.20-pre5 that I'm
> running right now.
> 
> Though interestingly enough, if I switch the apps to use oss emulation
> instead of native alsa output, things seem to work fine.

i guess this is somehow different phenomenon from the original post.
perhaps this has something to do with the hardware parameters,
especially period size.  could you check
/proc/asound/card0/pcm0p/sub0/hw_status (and others) at each case to
compare which parameters are used?


Takashi


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