[mythtv] MythTV_0.21+Fedora9+PulseAudio+ALSA causing the volume to be unchangable

Colin Guthrie mythtv at colin.guthr.ie
Wed Sep 10 12:45:23 UTC 2008

buzz wrote:
> As a related note to this defect......
> Has anyone other than me experienced the combination of 
> MythTv0.21+Fedora9+PulseAudio+ALSA causing the volume to be unchangable 
> ( or more correctly, I can change it all I like, and the on-screen 
> display changes, but the decibels dont).  ?
> Yes, I have ALSA  as the selected output type in mythtv, and I DO get 
> sound..... so it's a slightly different bug that the one mentioned in 
> #3598 below, but quite possibly related.

Make sure your mixer is set to "Master" and not "PCM". Pulse does not 
expose a PCM mixer control.

Also make sure you have configure alsa correctly to use the pulse plugin 
as a mixer and not just for PCM data.

Also you can see Cal's patch for direct pulseaudio support here:




Colin Guthrie

Day Job:
   Tribalogic Limited [http://www.tribalogic.net/]
Open Source:
   Mandriva Linux Contributor [http://www.mandriva.com/]
   PulseAudio Hacker [http://www.pulseaudio.org/]
   Trac Hacker [http://trac.edgewall.org/]

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