HDMI output selected when it isn't plugged in

[Kai Groner]

Pulseaudio has started preferring the "HDMI / Displayport" sink instead of the USB audio device I have speakers connected to. I'm pretty sure this behavior change coincided with upgrading from Ubuntu 19.04 to 19.10.

I've tried using set-default-sink in default.pa, but it doesn't seem to have any effect.

The "Set as fallback" buttons in pavucontrol seem to fix it, but I have to repeat this sometimes. I'm not sure what the pattern is.

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: pulseaudio 1:13.0-1ubuntu1
ProcVersionSignature: Ubuntu 5.3.0-19.20+kai1-generic 5.3.1
Uname: Linux 5.3.0-19-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu8
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Oct 28 11:15:07 2019
InstallationDate: Installed on 2019-06-18 (132 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
ProcEnviron:
 TERM=tmux-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: pulseaudio
UpgradeStatus: Upgraded to eoan on 2019-10-23 (5 days ago)
dmi.bios.date: 07/31/2019
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P2.60
dmi.board.name: B450M Steel Legend
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.60:bd07/31/2019:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnB450MSteelLegend:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: To Be Filled By O.E.M.
dmi.product.sku: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
modified.conffile..etc.pulse.default.pa: [modified]
mtime.conffile..etc.pulse.default.pa: 2019-10-25T21:49:15.001833

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1847570, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.