[mythtv-users] Newbie question/help

[Joseph A. Caputo]

Sounds like btaudio might be messing things up... if you're loading the
btaudio module, it will grab the first two available /dev/dsp* devices
and the first available /dev/mixer* device.  So, depending on your
module load order, /dev/dsp0 could be your sound card or your btaudio
input-only.  A quick look at the output of the 'dmesg' command should
tell you which devices btaudio is grabbing.  Your options then are to
remove references to btaudio from your /etc/modules.conf file, or to
re-run the Myth setup program and try changing the audio device
associated with your tuner(s).

Incidentally, you can force the devices that btaudio grabs with some
options in /etc/modules.conf.  Mine reads like:

	options btaudio dsp1=1 dsp2=2 mixer=1

will ensure that btaudio grabs /dev/dsp1, /dev/dsp2 and /dev/mixer1
(assuming they are available -- I don't know what happens if they're
already assigned)

Hope this helps.

-Joe C.


> ----------------------------------------------------------------------
> I had the same problem last night, but I saw the picture.  I checked the patch 
> cable from WinTV to the soundcard lin-in, checked the mixer settings, etc, 
> checked /dev/dsp usage and permissions, but saw no problem.  I can use 
> mythmusic to play back music, so I know sound is working.
> 
> Funny thing is the same setup worked only two days ago -- it just stopped 
> working last night.  I'm using CVS from Tuesday around 9pm ET.
> 
> In all fairness I have to admit that things probably broke when I tried to use 
> btaudio and a second TV card.  In setup I added the /dev/video* devices, etc.  
> But I gave up on the multiple tuner setup for now because there was some 
> hardware conflict.  So ever afterwards I haven't been able to hear audio from 
> mythtv only.  Mythvideo and mythmusic work.
> 
> I'm puzzled.  I suppose I'll remove mythtv, update from cvs and build again.  
> Let's see if this helps.
> 
> IvanK.
>