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[Raymond <1436269@xxxxxxxxxxxxxxxxxx>]

you have to post pulseaudio verbose log


state.Intel {
	control.1 {
		iface MIXER
		name 'Line Out Playback Volume'
		value.0 61
		value.1 61
		comment {
			access 'read write'
			type INTEGER
			count 2
			range '0 - 63'
			dbmin -9150
			dbmax 300
			dbvalue.0 0
			dbvalue.1 0
		}
	}

	control.3 {
		iface MIXER
		name 'Headphone Playback Volume'
		value.0 61
		value.1 61
		comment {
			access 'read write'
			type INTEGER
			count 2
			range '0 - 63'
			dbmin -9150
			dbmax 300
			dbvalue.0 0
			dbvalue.1 0
		}
	}

	control.5 {
		iface MIXER
		name 'Speaker Playback Volume'
		value 0
		comment {
			access 'read write'
			type INTEGER
			count 1
			range '0 - 63'
			dbmin -9150
			dbmax 300
			dbvalue.0 -9150
		}
	}


dB range of those playback volume controls are -91.5dB to +3.0 dB

check the dB range of three paths


>Why isn't it just so that Speakers port controls Speaker in ALSA and does not change others, Analog Output port controls only Line Out in ALSA and does not change others, and Headphones port controls only Headphone in ALSA and does not change others? 

when virtual master playback volume is changed, the playback vilume of
all the slaves also changed

try comment the volume of [Element Master] in those three .conf
files(lineout, speakers and headphone ) and observe any difference

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to pulseaudio in Ubuntu.
https://bugs.launchpad.net/bugs/1436269

Title:
  When you select Analog Output or Speakers as port in Output Devices
  tab of pavucontrol, headphone levels are raised

Status in pulseaudio package in Ubuntu:
  Incomplete

Bug description:
  I expect that headphone levels are not raised, when Analog Output or
  Speakers is selected as port.

  Please note, that Line out = analog output port is controlled by ALSA
  mixer track called PCM, whereas there should be a separate mixer track
  for it; see bug Bug #1433568

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: pulseaudio 1:4.0-0ubuntu11.1
  ProcVersionSignature: Ubuntu 3.13.0-48.80-lowlatency 3.13.11-ckt16
  Uname: Linux 3.13.0-48-lowlatency x86_64
  ApportVersion: 2.14.1-0ubuntu3.7
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Wed Mar 25 12:34:23 2015
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2014-09-21 (185 days ago)
  InstallationMedia: Ubuntu-Studio 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.1)
  SourcePackage: pulseaudio
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/26/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 2.6.6
  dmi.board.name: 0RF703
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 6
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr2.6.6:bd06/26/2011:svnDellInc.:pnOptiPlex745:pvr:rvnDellInc.:rn0RF703:rvr:cvnDellInc.:ct6:cvr:
  dmi.product.name: OptiPlex 745
  dmi.sys.vendor: Dell Inc.

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