[mythtv-users] audio problems using mythtv

[Joe Buhr]

Still no luck.  I've included a couple of items that might help with
the diagnosis.
Also, under the KDE Control Center, I have disabled sound control. 
The sound works fine accessing it via aplayer, etc.  But when I bring
up the mythfrontend... no sound.

[root at myth ~]# lsmod | grep oss
snd_pcm_oss            46120  0
snd_mixer_oss          16384  1 snd_pcm_oss
snd_pcm                92680  3 snd_via82xx,snd_ac97_codec,snd_pcm_oss
snd                    50788  9
snd_via82xx,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device

[root at myth ~]# grep snd /etc/modprobe.conf
alias snd-card-0 snd-via82xx
options snd-card-0 index=0
install snd-via82xx /sbin/modprobe --ignore-install snd-via82xx &&
/usr/sbin/alsactl restore >/dev/null 2>&1 || :
remove snd-via82xx { /usr/sbin/alsactl store >/dev/null 2>&1 || : ; };
/sbin/modprobe -r --ignore-remove snd-via82xx





On Sat, 4 Dec 2004 19:53:14 -0800, Jarod Wilson <jcw at wilsonet.com> wrote:
> On Saturday 04 December 2004 18:29, Joe Buhr wrote:
> 
> 
> > I'm not sure where to begin with this one...
> >
> > Fedora Core 3
> >
> > Video Configuration (seems to be working):
> > Hauppage 250 - tuner input
> > Nvidia GeForce 4 MX - S-Video output
> >
> > Audio Configuration:
> > Using the soundcard on the motherboard... aliased to snd-via82xx
> > I have a cable between my TV and the mythtv box converting from the
> > on-board (mini head-phone jack) to my TV's RCA inputs.
> >
> > When just accessing the sound through the OS, the audio to the TV works
> > fine: $ /usr/bin/aplay /usr/share/sounds/KDE_Startup.wav
> >
> > When I fire up the myth frontend, however, there is no audio.  If I
> > unplug the converter between the TV and the mythtv box and use
> > headphones instead, everything works fine... even through mythtv.
> >
> > Any ideas?
> 
> Yup. For some reason that still escapes me, some boxes (like mine) auto-load
> the snd-pcm-oss and snd-mixer-oss ALSA modules for OSS emulation (which is
> what myth uses by default), while others do not. Just slap 'modprobe
> snd-pcm-oss' and 'modprobe snd-mixer-oss' in /etc/rc.local, and you should be
> fine.
> 
> --
> Jarod C. Wilson, RHCE
> jcw at wilsonet.com
> 
> Got a question? Read this first...
>      http://catb.org/~esr/faqs/smart-questions.html
> MythTV, Fedora Core & ATrpms documentation:
>      http://wilsonet.com/mythtv/
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> 
> 
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