Comment 0 for bug 1838577

This is present in Ubuntu 18.04, 18.10, 19.04, and 19.10 daily build. It was not present in Ubuntu 16.04.

I have a USB microphone which also appears to pulse as a speaker. Pulse keeps picking it as the default audio device. I can switch audio devices to my analog line out, which works as expected until I reboot.

After reboot, my audio device switches back to the USB "speaker", and volume control adjusts the USB speaker volume. Despite pulse seeing the USB device as the current output device, I still hear sound from my line-out.

In the interest of narrowing down this bug, I have found that disabling "module-switch-on-connect" fixes the problem (my line-out stays as the default audio device and I hear sound).

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: pulseaudio 1:12.2-2ubuntu3
ProcVersionSignature: Ubuntu 5.0.0-21.22-generic 5.0.15
Uname: Linux 5.0.0-21-generic x86_64
ApportVersion: 2.20.10-0ubuntu27.1
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Wed Jul 31 17:39:38 2019
InstallationDate: Installed on 2019-07-31 (0 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/07/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4207
dmi.board.asset.tag: Default string
dmi.board.name: PRIME B350M-A
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4207:bd12/07/2018:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEB350M-A:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer