[Pkg-bluetooth-maintainers] Bug#570468: infos

[François Wendling]

Hi, 

Found this bug report while googling ;)

Using BT + ALSA without pulse is a PITA out of the box :(

Here is a workaround using ~/.asoundrc (works with whizzy) : 


############################# BOF ####################################
pcm.btheadset {
   type plug
   slave {
       pcm {
           type bluetooth
           device "AA:BB:CC:DD:EE:FF"
           profile "auto"
       }   
   }   
   hint {
       show on
       description "BT Headset"
   }   
}
ctl.btheadset {
  type bluetooth
}  

pcm.btheadset_softvol
{
   type softvol
   slave.pcm "btheadset"
   control.name "Bluetooth"
   control.card 0
}

# Using bluetooth as default : 
#pcm.!default {
#    type plug
#    slave.pcm "btheadset_softvol"
#}

###################################### EOF ##########################

This will add a pseudo master bluetooth volume control to your sound card,
-not- another audio card (Change MAC address indeed). Amixer and Alsamixer will
then have a "Bluetooth" audio control. It does what the OP wants but...

Sadly this is not linked with PCM/Master from Audio Card. So you'll need to use
softvol for all alsa clients or make a choice for multimedia buttons (bt vs
headphone/speaker).

For mplayer you _must_ use the -softvol switch to force softvolume : 


$ mplayer -softvol -ao alsa:device=btheadset_softvol thissuperstuff.ogg

You may set it up in ~/.mplayer/config, add this line :

### BOF ###
softvol=1
### EOF ###

To maintainers, this is a workaround. Instead a fake soundcard should be
created (if it's possible ;) ).

Cheers,

-- 
François Wendling (frwendling at free d0t fr)
GPG key: 048A18FE (pgp.mit.edu)
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