[pulseaudio-tickets] [Bug 90496] Feature request: add Auto-mute tumbler

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90496

--- Comment #3 from Raymond <superquad.vortex2 at gmail.com> ---
You have to post pulseaudio verbose log


control.1 {
        iface MIXER
        name 'Front Playback Volume'
        value.0 64
        value.1 64
        comment {
            access 'read write'
            type INTEGER
            count 2
            range '0 - 64'
            dbmin -6400
            dbmax 0
            dbvalue.0 0
            dbvalue.1 0
        }
    }

dBmin of those playback volume controls are -64dB

virtual master playback volume is present on both headphone path and line out
path

it depend on pulseaudio adjust which volume control first 

http://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/src/modules/alsa/mixer/paths

you can try comment volume of  [Element Master]  from headphones.conf and
lineout.conf  and observe the difference


[Element Master]
switch = mute
#volume = merge
override-map.1 = all
override-map.2 = all-left,all-right


ALC892 is a 10 channel HDA codec which support 7.1+2 multistreaming



Card hw:0 'SB'/'HDA ATI SB at 0xfbcf8000 irq 16'
  Mixer name    : 'Realtek ALC892'
  Components    : 'HDA:10ec0892,18490892,00100302'
  Controls      : 49
  Simple ctrls  : 21
Simple mixer control 'Master',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 64
  Mono: Playback 37 [58%] [-27.00dB] [on]
Simple mixer control 'Headphone',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 64
  Mono:
  Front Left: Playback 64 [100%] [0.00dB] [on]
  Front Right: Playback 64 [100%] [0.00dB] [on]
Simple mixer control 'PCM',0
  Capabilities: pvolume
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Mono:
  Front Left: Playback 255 [100%] [0.00dB]
  Front Right: Playback 255 [100%] [0.00dB]
Simple mixer control 'Front',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 64
  Mono:
  Front Left: Playback 64 [100%] [0.00dB] [on]
  Front Right: Playback 64 [100%] [0.00dB] [on]

Simple mixer control 'Surround',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 64
  Mono:
  Front Left: Playback 64 [100%] [0.00dB] [on]
  Front Right: Playback 64 [100%] [0.00dB] [on]
Simple mixer control 'Center',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 64
  Mono: Playback 64 [100%] [0.00dB] [on]
Simple mixer control 'LFE',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 64
  Mono: Playback 64 [100%] [0.00dB] [on]
Simple mixer control 'Side',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 64
  Mono:
  Front Left: Playback 64 [100%] [0.00dB] [on]
  Front Right: Playback 64 [100%] [0.00dB] [on]

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