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Date: Fri, 22 Dec 2006 01:42:43 +0300
From: "Andrew Pantyukhin" <infofarmer@FreeBSD.org>
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Cc: multimedia@freebsd.org
Subject: Re: snd_hda: loud distorted sound with NVidia MCP51
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On 12/19/06, Ariff Abdullah <ariff@freebsd.org> wrote:
> On Mon, 18 Dec 2006 23:57:00 +0300
> "Andrew Pantyukhin" <infofarmer@FreeBSD.org> wrote:
> > On 12/18/06, Hiroharu Tamaru <tamaru@myn.rcast.u-tokyo.ac.jp> wrote:
> > > This is already commited. So look for this line
> > >               if (subvendor == 0x81cb1043) {
> > > and replace it with
> > >               if (subvendor == 0x81cb1043 || subvendor ==
> > >               0x10b81734) {
> > > and have a try.
> >
> > This actually works very well! Thank you very much!
>
> Fix committed

I confirm that -current works great. Thank you!

> > Ariff, I'll provide additional testing as needed.
> >
> > Also there's another problem, independent of the
> > patch. Sometimes the card starts playing, but
> > just as about half a second passes the output
> > stops (mpg123 exits) and kernel says this:
> >
> > pcm0:virtual:0:dsp0.v0: play interrupt timeout, channel dead
>
> 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.

Thanks!