[mythtv-users] Occasionally HD program plays without sound: NVP(0): Disabling Audio

[Michael T. Dean]

  On 01/15/2011 02:59 PM, Marc MERLIN wrote:
> This is puzzling:
> I have 5 episodes of Top Gear USA recorded from the same channel (comcast
> over firewire).
> 4 played fine, one plays without sound in mythtv-frontend but sound will
> play if I use mplayer on the mpeg file.
>
...
> 2011-01-15 11:55:21.301 Opening mixer /dev/mixer
> ALSA lib control.c:882:(snd_ctl_open_noupdate) Invalid CTL /dev/mixer
> 2011-01-15 11:55:21.301 AudioOutput Warning: Mixer attach error -2: No such file or directory
>                          Check Mixer Name in Setup: '/dev/mixer'

Step 1 is to fix your audio configuration.  That it guesses right 
sometimes is irrelevant--we only support properly configured systems.  :)

Mike