CVS, ALC655 ->Line-In to Surround not working

CVS, ALC655 ->Line-In to Surround not working

[R Chan]

Hi,

Upgraded to CVS to get ALC655 support on a KT600 motherboard and
VIA8233 south bridge. ac97 codec is identified as ALC655 rev 0.

I have unmuted all the usual suspects (PCM, Master, LFE, Center 
Surround, except the down mix controls) and I have unmuted
"Line-In As Surround" and "Mic As Center/LFE". I also use the surround51 
device which
references device 1 (is this the 6-channel device?)

Unfortunately I can't get any sound out of the surround or center/LFE 
speakers.
When I try something like

pcm.testrear {
    type plug
    slave {
       pcm "hw:0,1"
       rate 48000
    }
    ttable.0.2 1
    ttable.1.3 1
}
(I presume channels 2 and 3 are the rear speakers)

aplay -Dtestrear foo.wav

gives no sound. Any suggestions?

Thanks
Richard



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Re: CVS, ALC655 ->Line-In to Surround not working

[Takashi Iwai]

At Sun, 16 Nov 2003 20:25:33 +0800,
R Chan wrote:
> 
> Hi,
> 
> Upgraded to CVS to get ALC655 support on a KT600 motherboard and
> VIA8233 south bridge. ac97 codec is identified as ALC655 rev 0.
> 
> I have unmuted all the usual suspects (PCM, Master, LFE, Center 
> Surround, except the down mix controls) and I have unmuted
> "Line-In As Surround" and "Mic As Center/LFE".

try turn "on", suppose that these jacks are shared.

>  I also use the surround51 
> device which
> references device 1 (is this the 6-channel device?)

yes.

> Unfortunately I can't get any sound out of the surround or center/LFE 
> speakers.
> When I try something like
> 
> pcm.testrear {
>     type plug
>     slave {
>        pcm "hw:0,1"
>        rate 48000
>     }
>     ttable.0.2 1
>     ttable.1.3 1
> }
> (I presume channels 2 and 3 are the rear speakers)

you can turn on "Duplicate Front" switch instead.
then the front signal is routed to the rear speakers on hardware.


Takashi


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