Sound driver weirdness
imp at bsdimp.com
Fri Nov 4 11:29:56 PST 2005
> > % fstat | grep dps
> > Why are my vchans disabled, what does that mean and what can I do
> > about it?
> That means at most, only single process (sound apps) can acquire the
> sound device (vchans = virtual channels).
> 1) Try enabling vchans by increasing the value of both
> hw.snd.maxautovchans and hw.snd.pcm0.vchans (4 is a good start).
> After that, you probably need to reduce the value of
> hw.snd.pcm0.vchanrate to 44100 (only if necessary).
> 2) Try to use other 'simpler' apps, such as mpg321
cat > /dev/dsp gives the same results:
cat > /dev/dsp
/dev/dsp: Operation not supported by device.
> 3) hm.. I don't think my recent commit against both dsp.c/mixer.c
> cause this problem (maybe?). Note that there was also a commit by
> DES, so you probably need to back off dsp.c down to rev. 1.85
I'll have to give that a spin...
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