master volume has no effect

Rostislav Krasny rosti.bsd at gmail.com
Sun May 7 13:06:53 UTC 2006


On Sun, 7 May 2006 11:24:55 +0800
Ariff Abdullah <ariff at FreeBSD.org> wrote:

> On Sat, 6 May 2006 22:36:43 +0300
> Rostislav Krasny <rosti.bsd at gmail.com> wrote:
> > On Sat, 29 Apr 2006 14:24:48 +0300
> > Rostislav Krasny <rosti.bsd at gmail.com> wrote:
> > 
> > > > This is easy. Just give me the output of dmesg | grep pcm . All
> > > > I need to know is your AC97 codec.
> > > 
> > > pcm0: <Intel ICH2 (82801BA)> port 0xe800-0xe8ff,0xef00-0xef3f irq
> > > 9 at device 31.5 on pci0 pcm0: <Analog Devices AD1885 AC97 Codec>
> > 
> > Any progress? I can test a patch, if you have some.
> > 
> I lied when I said "this is easy", since at first, I thought this was
> about soft volume pcm. There are few codecs that exhibit this same
> "problem".
> 
> I can provide you with a crude workaround, but it is a _workaround_ .
> The _real_solution_ is to implement some sort of relative volume
> adjustment, which probably take some time.
> 
> Replace your sys/dev/sound/pci/ich.c with:
> 
>    http://people.freebsd.org/~ariff/test/ich.c
> 
> .. and as I said, *workaround*, not a real fix.

Thank you. It works, but with some strangenesses. I will return to the
original ich.c and wait for the real solution. When it's ready, feel
free to send me patches for testing if you need.


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