[mythtv-users] slightly OT: no sound

[Mary Strimel]

On Mon, Dec 15, 2008 at 4:22 PM, Michael T. Dean <mtdean at thirdcontact.com>wrote:

> On 12/15/2008 04:11 PM, Nick Rout wrote:
> > On Tue, Dec 16, 2008 at 8:20 AM, Mary Strimel wrote:
> >
> >> My myth box has been running happily for 70+ days, but now after
> rebooting
> >> there is no sound.  I don't think it's a myth-specific problem but since
> my
> >> hardware is similar to other myth users I hope someone here can help me
> -
> >> other routes have failed.
> >>
> >> I have onboard Via sound using Alsa's snd_via82xx driver.  I also have a
> >> PC-HDTV 5500 and a WinTV PVR 250 installed.
> >>
> >> There are two weird things I noticed after the reboot (besides the eerie
> >> quiet):
> >>
> >> 1) there no /dev/dsp device anymore.  I think myth was using /dev/dsp
> for
> >> sound; the myth setting is now defaulted to "adsp" but I have no idea
> what
> >> that is.
> >>
> >> 2) under xmms, sound *does* work if I select, under the ALSA output, "hw
> >> 1,0" but there is no sound in any other program.  Alsamixer shows the
> Via
> >> sound controller as device 1, and all channels are unmuted / top volume.
> >>
> >> I am aware that people on this mailing list have solved issues with PCI
> >> cards being recognized in a different order at boot time, but I how do I
> >> tell if this is actually the problem?  I don't want to be messing around
> >> with settings in "blind" fashion and break something else.
> >>
> >> Also, if I determine that it's an issue with the card order, how would I
> >> know which card "should" be detected first?  And why aren't any /dev/dsp
> >> devices being created at all?
> >>
> >> Any help with the ANY of the above would be much appreciated!  If it
> >> matters, I have Ubuntu Gutsy 64.
> > A few preliminary tests would be to run
> >
> > aplay -l
> > aplay -L
> > ls /proc/asound (I think thats the path)
> >
> > to see what is recognised.
>
> Yeah, specifically:
>
> cat /proc/asounds/cards
>
> where I think you'll find you have a sound card you don't know about
> (perhaps the analog capture portion of the HD-5500?).  The problem is
> that the cards get different device numbers depending on when they
> initialize, so they could change at every boot.  You need to lock the
> desired card to card 0.
>
> Mike
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>

OK, I think I found on the Ubuntu forum how to force the order of the sound
cards.  I'll give that a try and report back.  Thanks!
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