Advanced Linux Sound Architecture

Hi,

* Steve <wilton@...> [2003-02-15 14:52:57]:
> Use alsa OSS emulation.
> 
> modprobe snd-pcm-oss

I already did this from the start.

> set mixer levels on IEC958 and go

How should those be set? I have played around with them, but they seem
to have no effect. I can disable SPDIF output in alsa apps when playing
around with it, but in OSS apps I have yet to experience SPDIF output.

  - Morten.

Hi Steve,

* Steve <wilton@...> [2003-02-15 20:22:21]:
> Morten Brix Pedersen wrote:
> >How should those be set? I have played around with them, but they seem
> >to have no effect. I can disable SPDIF output in alsa apps when playing
> >around with it, but in OSS apps I have yet to experience SPDIF output.
> >
> Unmute the IEC958 playback switch and set the output level to 0.

Where do you do this?

> P.S. I had good luck using the alsa-0.9.0rc5 from 
> http://www.realtek.com.tw/products/products1-2.aspx?modelid=30

I'm using the alsa-0.9.0rc7 source, hopefully should work as good as it
does for you.

  - Morten.

At Fri, 14 Feb 2003 15:07:52 +0100,
Morten Brix Pedersen wrote:
> 
> Hi,
> 
> I'm trying to make SPDIF/OUT work on my onboard Realtek ALC650 (my
> motherboard is Asus P4T533-C).
> 
> I can make it work in xmms using the alsa plugin, however for non-alsa
> supported applications, I can only get normal analog output.
> 
> How do I enable spdif digital out for OSS?

- turn on "IEC958 Playback Switch" and change "IEC958 AC97-SPSA" to 1
  via alsamixer.
- play via /dev/adsp


Takashi

At Mon, 17 Feb 2003 12:16:14 +0100,
I wrote:
> 
> At Fri, 14 Feb 2003 15:07:52 +0100,
> Morten Brix Pedersen wrote:
> > 
> > Hi,
> > 
> > I'm trying to make SPDIF/OUT work on my onboard Realtek ALC650 (my
> > motherboard is Asus P4T533-C).
> > 
> > I can make it work in xmms using the alsa plugin, however for non-alsa
> > supported applications, I can only get normal analog output.
> > 
> > How do I enable spdif digital out for OSS?
> 

sorry, correction:

> - turn on "IEC958 Playback Switch" and change "IEC958 AC97-SPSA" to 1
                                                                      ^
                                                                      0
>   via alsamixer.


Takashi

* Takashi Iwai <tiwai@...> [2003-02-17 12:35:42]:
> At Fri, 14 Feb 2003 15:07:52 +0100, Morten Brix Pedersen wrote:
> > How do I enable spdif digital out for OSS?
> 
> - turn on "IEC958 Playback Switch" and change "IEC958 AC97-SPSA" to 1
>   via alsamixer.
> - play via /dev/adsp

OK, would it be safe to symlink /dev/dsp to /dev/adsp?

  - Morten.

At Mon, 17 Feb 2003 17:57:44 +0100,
Morten Brix Pedersen wrote:
> 
> * Takashi Iwai <tiwai@...> [2003-02-17 12:35:42]:
> > At Fri, 14 Feb 2003 15:07:52 +0100, Morten Brix Pedersen wrote:
> > > How do I enable spdif digital out for OSS?
> > 
> > - turn on "IEC958 Playback Switch" and change "IEC958 AC97-SPSA" to 1
> >   via alsamixer.
> > - play via /dev/adsp
> 
> OK, would it be safe to symlink /dev/dsp to /dev/adsp?

well, i forgot to ask which driver and chip version.
via82xx behaves differently depending on the chip version.

i guess you are using via8233 (not via8233A) or via8235.
if yes, /dev/adsp will work as you wish, but then you'll lose the
capability for multi-playback.
with /dev/dsp, you can play up to 4 streams at the same time.


Takashi

Hi Takashi,

* Takashi Iwai <tiwai@...> [2003-02-17 18:32:44]:
> At Mon, 17 Feb 2003 17:57:44 +0100,
> Morten Brix Pedersen wrote:
> > 
> > * Takashi Iwai <tiwai@...> [2003-02-17 12:35:42]:
> > > At Fri, 14 Feb 2003 15:07:52 +0100, Morten Brix Pedersen wrote:
> > > > How do I enable spdif digital out for OSS?
> > > 
> > > - turn on "IEC958 Playback Switch" and change "IEC958 AC97-SPSA" to 1
> > >   via alsamixer.
> > > - play via /dev/adsp
> > 
> > OK, would it be safe to symlink /dev/dsp to /dev/adsp?
> 
> well, i forgot to ask which driver and chip version.
> via82xx behaves differently depending on the chip version.
> 
> i guess you are using via8233 (not via8233A) or via8235.
> if yes, /dev/adsp will work as you wish, but then you'll lose the
> capability for multi-playback.
> with /dev/dsp, you can play up to 4 streams at the same time.

Oh, no! I'm using the snd-intel8x0 module. This is the Intel 850E
chipset on the Asus P4T533-C. Not VIA.

  - Morten.