When Jack is enabled, volume is affected by 2 sliders and desktop slider only controls one

[Set Hallstrom]

The Pavu output mixer presents 2 sliders in the output panel:
- the soundcard
- jack sink

The volume slider on the desktop only affects jack sink, hence if the soundcard slider is all the way down, no sound is output until pavu is opened and the soundcard output level is manually adjusted. The keyboard volume buttons have the same effect.

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: pulseaudio-module-jack 1:9.0-1.1ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-9134.53-lowlatency 4.4.15
Uname: Linux 4.4.0-9134-lowlatency i686
ApportVersion: 2.20.3-0ubuntu7
Architecture: i386
CurrentDesktop: XFCE
Date: Thu Aug 25 12:28:22 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-08-25 (0 days ago)
InstallationMedia: Ubuntu-Studio 16.10 "Yakkety Yak" - Alpha i386 (20160824.2)
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/13/2011
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.33
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 3674
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 28.48
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.33:bd12/13/2011:svnHewlett-Packard:pnPresarioCQ57NotebookPC:pvr068E120000204910000620100:rvnHewlett-Packard:rn3674:rvr28.48:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: Presario CQ57 Notebook PC
dmi.product.version: 068E120000204910000620100
dmi.sys.vendor: Hewlett-Packard

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1616854

[Set Hallstrom (sakrecoer)]

This is actually expected behaviour. The slider depends on which output is set as fallback.