Date: Fri, 22 Dec 2006 23:54:30 +0300 From: "Andrew Pantyukhin" <infofarmer@FreeBSD.org> To: "Ariff Abdullah" <ariff@freebsd.org> Cc: multimedia@freebsd.org Subject: Re: snd_hda: loud distorted sound with NVidia MCP51 Message-ID: <cb5206420612221254u6a556118i576a557ed912814@mail.gmail.com> In-Reply-To: <cb5206420612211442u6eb7231ekf887e8d43e523ab6@mail.gmail.com> References: <sa6mz612cxq.wl%tamaru@myn.rcast.u-tokyo.ac.jp> <sa6zm9umnrh.wl%tamaru@myn.rcast.u-tokyo.ac.jp> <20061212010805.3b1b3dff.ariff@FreeBSD.org> <sa6d56qjp8n.wl%tamaru@myn.rcast.u-tokyo.ac.jp> <20061212033104.051a7d0f.ariff@FreeBSD.org> <cb5206420612181050s71681a59tfc9d7a8b66d7d74a@mail.gmail.com> <sa6vek9uhvx.wl%tamaru@myn.rcast.u-tokyo.ac.jp> <cb5206420612181257q60e22da0w922b22bf2d8a074a@mail.gmail.com> <20061220011231.4ae3ca6b.ariff@FreeBSD.org> <cb5206420612211442u6eb7231ekf887e8d43e523ab6@mail.gmail.com>
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On 12/22/06, Andrew Pantyukhin <infofarmer@freebsd.org> wrote:
> 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.
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.
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