Revo 7.1 setup ?

Revo 7.1 setup ?

[Nicolas Mailhot]

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Hi,

I'm trying to setup a revo 7.1 in digital out mode (will do 5.1 analog
whenever I receive Y cables).

After much googling the best asoundrc setting I found is :

pcm.!default {
        type plug
        slave.pcm "spdif"
}

(no it's not in the wiki nor anywhere else, I had to merge two different
suggestions in messages separated by months to get any sound on this
card).

Problem is :
1. apps complain someone blocks accesses (probably means some dmixing is
in order ?)
2. I'm hearing stuttering when I manage to kick esd from the card.
3. I don't seem able to control sound anywhere in the gnome mixer

Can anyone help me ? I've already spend hours on this, and I'm still not
able to play a CD decently with what is supposed to be a well-supported
alsa card.


-- 
Nicolas Mailhot

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Re: Revo 7.1 setup ?

[Sergei Steshenko]

Have you played with settings using 'alsamixer' ?

I have never tried digital out, so I can't be more specific.

On Sat, 03 Dec 2005 20:08:03 +0100
Nicolas Mailhot <nicolas.mailhot@laposte.net> wrote:

> Hi,
> 
> I'm trying to setup a revo 7.1 in digital out mode (will do 5.1 analog
> whenever I receive Y cables).
> 
> After much googling the best asoundrc setting I found is :
> 
> pcm.!default {
>         type plug
>         slave.pcm "spdif"
> }
> 
> (no it's not in the wiki nor anywhere else, I had to merge two different
> suggestions in messages separated by months to get any sound on this
> card).
> 
> Problem is :
> 1. apps complain someone blocks accesses (probably means some dmixing is
> in order ?)
> 2. I'm hearing stuttering when I manage to kick esd from the card.
> 3. I don't seem able to control sound anywhere in the gnome mixer
> 
> Can anyone help me ? I've already spend hours on this, and I'm still not
> able to play a CD decently with what is supposed to be a well-supported
> alsa card.
> 
> 
> -- 
> Nicolas Mailhot


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Re: Revo 7.1 setup ?

[Nicolas Mailhot]

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Le samedi 03 décembre 2005 à 21:21 +0200, Sergei Steshenko a écrit :
> Have you played with settings using 'alsamixer' ?

First thing I did.
Alsamixer seems useless in digital out with this card.

-- 
Nicolas Mailhot

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Re: [Alsa-user] Revo 7.1 setup ?

[Lee Revell]

On Sat, 2005-12-03 at 20:08 +0100, Nicolas Mailhot wrote:
> Hi,
> 
> I'm trying to setup a revo 7.1 in digital out mode (will do 5.1 analog
> whenever I receive Y cables).
> 
> After much googling the best asoundrc setting I found is :
> 
> pcm.!default {
>         type plug
>         slave.pcm "spdif"
> }

That .asoundrc does nothing that you could not do by setting the app to
use the "spdif" PCM - it's useless.

If you get no sound at all without an .asoundrc it's a bug, please file
a bug report:

https://bugtrack.alsa-project.org/alsa-bug/main_page.php

Lee



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Re: [Alsa-user] Revo 7.1 setup ?

[Sergei Steshenko]

A lot of channels have IEC958 setting, so I thought it was the thing to look for.

On Sat, 03 Dec 2005 20:26:18 +0100
Nicolas Mailhot <nicolas.mailhot@laposte.net> wrote:

> Le samedi 03 décembre 2005 à 21:21 +0200, Sergei Steshenko a écrit :
> > Have you played with settings using 'alsamixer' ?
> 
> First thing I did.
> Alsamixer seems useless in digital out with this card.
> 
> -- 
> Nicolas Mailhot


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Re: Revo 7.1 setup ?

[Nicolas Mailhot]

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Le samedi 03 décembre 2005 à 14:28 -0500, Lee Revell a écrit :
> On Sat, 2005-12-03 at 20:08 +0100, Nicolas Mailhot wrote:
> > Hi,
> > 
> > I'm trying to setup a revo 7.1 in digital out mode (will do 5.1 analog
> > whenever I receive Y cables).
> > 
> > After much googling the best asoundrc setting I found is :
> > 
> > pcm.!default {
> >         type plug
> >         slave.pcm "spdif"
> > }
> 
> That .asoundrc does nothing that you could not do by setting the app to
> use the "spdif" PCM - it's useless.

I don't want to set up apps; I want the default output to be spdif for
all the system and all apps, regardless of the sound system they use
(oss, alsa, gstreamer or whatever).

without an .asoundrc I get no sound, I suppose it's routed to the analog
outputs but since they're not cabled yet it does me no good (yes I tried
toggling IEC958 Output in alsamixer).

I created this setup after seing an old message from Takashi stating
aplay -d plug:spdif should work with this card (no idea where spdif is
defined). And then googling half an hour more on how to make a plug the
default. This after trying all the revo asoundrc examples I could find
on the net, none of which did me much good.

> If you get no sound at all without an .asoundrc it's a bug, please file
> a bug report:
> 
> https://bugtrack.alsa-project.org/alsa-bug/main_page.php

I'm more than ready to file a bug once I have a working spdif output
setup. I don't really see the point of tracking it's broken without any
more info. In my experience bugs get fixed when a solution is provided
(with developers arguing afterwards whether it's the best one or not,
but at least they have a reference to work from)

Regards,

-- 
Nicolas Mailhot

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Re: Revo 7.1 setup ?

[Nicolas Mailhot]

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Le samedi 03 décembre 2005 à 21:32 +0200, Sergei Steshenko a écrit :
> A lot of channels have IEC958 setting, so I thought it was the thing to look for.

Right. The hardware seems nice and able to do many complex things, but I
didn't find how to make it do simple things yet.

-- 
Nicolas Mailhot

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Re: [Alsa-user] Revo 7.1 setup ?

[Lee Revell]

On Sat, 2005-12-03 at 20:41 +0100, Nicolas Mailhot wrote:
> Le samedi 03 décembre 2005 à 14:28 -0500, Lee Revell a écrit :
> > On Sat, 2005-12-03 at 20:08 +0100, Nicolas Mailhot wrote:
> > > Hi,
> > > 
> > > I'm trying to setup a revo 7.1 in digital out mode (will do 5.1 analog
> > > whenever I receive Y cables).
> > > 
> > > After much googling the best asoundrc setting I found is :
> > > 
> > > pcm.!default {
> > >         type plug
> > >         slave.pcm "spdif"
> > > }
> > 
> > That .asoundrc does nothing that you could not do by setting the app to
> > use the "spdif" PCM - it's useless.
> 
> I don't want to set up apps; I want the default output to be spdif for
> all the system and all apps, regardless of the sound system they use
> (oss, alsa, gstreamer or whatever).
> 
> without an .asoundrc I get no sound, I suppose it's routed to the analog
> outputs but since they're not cabled yet it does me no good (yes I tried
> toggling IEC958 Output in alsamixer).
> 
> I created this setup after seing an old message from Takashi stating
> aplay -d plug:spdif should work with this card (no idea where spdif is
> defined). And then googling half an hour more on how to make a plug the
> default. This after trying all the revo asoundrc examples I could find
> on the net, none of which did me much good.
> 

Ah, OK. Then it's not a bug, the output just defaults to analog.

Lee



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Re: [Alsa-user] Revo 7.1 setup ?

[Sergei Steshenko]

If I understand correctly what 'alsamixer' is doing, it, among other things,
redirects certain streams (e.g. PCM Out) to certain outputs.

So, probably, if you choose IEC958 on an output, you'll get the stream
on that output.

I'd first try to get CD playback in analog form - this definitely works.

The three leftmost controls are called "IEC958",  "IEC958 0",  "IEC958 1"
and one of the values is "PCM Out" - maybe one of them is the one that
needs to be set ?

I believe Takashi Iwai knows the definite answer - he is the driver developer if
I understand correctly.

On Sat, 03 Dec 2005 20:44:31 +0100
Nicolas Mailhot <nicolas.mailhot@laposte.net> wrote:

> Le samedi 03 décembre 2005 à 21:32 +0200, Sergei Steshenko a écrit :
> > A lot of channels have IEC958 setting, so I thought it was the thing to look for.
> 
> Right. The hardware seems nice and able to do many complex things, but I
> didn't find how to make it do simple things yet.
> 
> -- 
> Nicolas Mailhot


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Re: [Alsa-user] Revo 7.1 setup ?

[Nicolas Mailhot]

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Le samedi 03 décembre 2005 à 14:48 -0500, Lee Revell a écrit :

> Ah, OK. Then it's not a bug, the output just defaults to analog.

You're probably right about it not being a bug but it'd be nice if using
digital out was documented properly somewhere. M-audio windows driver
does it right - you have several use case profiles, and load the one you
need. Not a single specialized default - this card is too capable to
have only one default.

-- 
Nicolas Mailhot

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