[mythtv-users] Re: [ICH/i8x0 | Problems getting SPDIF Out Working - Help!]

Axel Thimm Axel.Thimm at atrpms.net
Tue Dec 28 10:33:30 UTC 2004


On Tue, Dec 28, 2004 at 12:55:35PM +1030, Michael Cheshire (Mailing Lists) wrote:
> I am running Fedora Core 2 with kernel 2.6.9-1.6_FC2, along with mythtv and 
> its associated bits installed from rpm from atrpms.net.

With or without the alsa 1.0.7 kernel module rpms (and userland alsa
1.0.7 rpms)?

> My system is an Open XCube, which has an intel ICH (i8x0) sound card with 
> optical digital out.
> 
> If I use the asound.conf found here 
> http://www.mythtv.info/moin.cgi/DigitalSoundHowTo , subsituting hw:0,2 for 
> hw:0,4 becuase my digital out appears to be on device 4 :
> 
> [root at mythtv root]# aplay -l
> **** List of PLAYBACK Hardware Devices ****
> card 0: ICH5 [Intel ICH5], device 0: Intel ICH [Intel ICH5]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
> card 0: ICH5 [Intel ICH5], device 4: Intel ICH - IEC958 [Intel ICH5 - 
> IEC958]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
> [root at mythtv root]#
> 
> Now this is where it gets a little wierd : If I attempt to play anything 
> back through plug:digital, I get nothing out the optical out at all.
> 
> I created a stereo 48000hz file and tried using aplay to play directly to 
> hw:0,4 :
> 
> #aplay -D hw:0,4 /video/music/test.wav
> 
> I get nothing.
> 
> Just for the heck of it, I tried
> 
> #aplay -D hw:0,0 /video/music/test.wav
> 
> and SOUND STARTED PLAYING THROUGH MY DIGITAL OUT???
> 
> Interestingly  :
> 
> #aplay -D analog /video/music/test.wav
> 
> Works fine through my digital output also ???
> 
> But it wont play anything except 48000hz stereo files so I'm assuming 
> something is broken or not working with dmix here.
> 
> Does anyone know if there is there some default Fedora Core 2 stuff that I 
> should be aware of in regards to all of this?
> 
> I basically want to use my digital out for playing music through Mythmusic 
> so I need to get the dmix plugin working so it will upsample from 44100hz 
> mp3s.
-- 
Axel.Thimm at ATrpms.net
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