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List:       freebsd-multimedia
Subject:    Re: snd_hda: loud distorted sound with NVidia MCP51
From:       Ariff Abdullah <ariff () freebsd ! org>
Date:       2006-12-22 21:53:35
Message-ID: 20061223055335.10cb72d9.ariff () FreeBSD ! org
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On Fri, 22 Dec 2006 23:54:30 +0300
"Andrew Pantyukhin" <infofarmer@FreeBSD.org> wrote:
> On 12/22/06, Andrew Pantyukhin <infofarmer@freebsd.org> wrote:
> > On 12/19/06, Ariff Abdullah <ariff@freebsd.org> wrote:
[....]
> > > Could you try this patch (attached). snd_hda supports polling
> > > mode instead of interrupt, so you might give it a try as well,
> > > _after_ the given patch failed to address this issue. sysctl
> > > dev.pcm.0.polling.
> >
> > I'm still trying to find a way to reproduce it. I
> > could hardly do it a couple of times since the first
> > one. When I'm sure I can cause it, I'll try the fix
> > and tell you.
> 
> So. I applied the patch and the error disappeared. But,
> it feels like some glitch is still there. In the rare
> situations when I would expect the error - when the
> laptop has just booted and I have just kldloaded
> snd_hda - instead of an error I get a 2-10 sec delay
> when I start mpg123 before I hear any output. The
> output starts from the beginning, i.e. nothing is lost,
> there's just a delay.
> 
> A delay is much better than an error, as mpg123 does
> not exit. Thanks! I'm ready to do further testing.
> 
How about polling mode? How about loading the module early through
loader.conf?


--
Ariff Abdullah
FreeBSD

... Recording in stereo is obviously too advanced
    and confusing for us idiot ***** users :P ........

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