[mythtv-users] audio problems using mythtv

[Jarod Wilson]

On Saturday 04 December 2004 20:39, Joe Buhr wrote:
> 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

Do you get sound if you mplayer /dev/video0?


> [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/
> > MythTV Searchable Mailing List Archive
> >      http://www.gossamer-threads.com/lists/mythtv/
> >
> >
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

-- 
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/
MythTV Searchable Mailing List Archive
     http://www.gossamer-threads.com/lists/mythtv/
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