[pulseaudio-tickets] [PulseAudio] #874: Pulseaudio breaks per-channel volume config when restoring volume from 0%

[PulseAudio]

#874: Pulseaudio breaks per-channel volume config when restoring volume from 0%
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  Reporter:  murz    |       Owner:  lennart
      Type:  defect  |      Status:  new    
 Milestone:          |   Component:  daemon 
Resolution:          |    Keywords:         
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Comment(by murz):

 I can reproduce this problem via command line utility pactl too:

 {{{
 $ pactl list
 Sink #0
         State: RUNNING
         Name: alsa_output.pci-0000_00_07.0.analog-stereo
         Description: Internal Audio Analog Stereo
         Driver: module-alsa-card.c
         Sample Specification: s16le 2ch 44100Hz
         Channel Map: front-left,front-right
         Owner Module: 4
         Mute: no
         Volume: 0:  20% 1:  31%
                 0: -41.58 dB 1: -30.93 dB
                 balance 0.34
         Base Volume: 100%
                      0.00 dB

 $ pactl set-sink-volume 0 30000
 $ pactl list
         Volume: 0:  30% 1:  46%
                 balance 0.34
         Base Volume: 100%

 $ pactl set-sink-volume 0 0
 $ pactl list
         Volume: 0:  0% 1:  0%
                 balance 0.00
         Base Volume: 100%

 $ pactl set-sink-volume 0 30000
 $ pactl list
         Volume: 0:  46% 1:  46%
                 balance 0.00
         Base Volume: 100%
 }}}


 So, balance after setting volume to 0% goes to 0.00 instead of 0.34 and
 per-channel volume becomes equal instead of different before 0%.
 Same problem is for surround 4.1, 5.1, 7.1 and etc sinks.

-- 
Ticket URL: <http://pulseaudio.org/ticket/874#comment:2>
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