[mythtv-users] slightly OT: no sound
mary.strimel at gmail.com
Mon Dec 15 21:36:15 UTC 2008
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
> >> there is no sound. I don't think it's a myth-specific problem but since
> >> 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
> >> sound; the myth setting is now defaulted to "adsp" but I have no idea
> >> 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
> >> 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.
> mythtv-users mailing list
> mythtv-users at mythtv.org
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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