Default audio device changes on reboot; audio still outputs using my previously-selected device

Bug #1838577 reported by Ben on 2019-07-31
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
pulseaudio (Ubuntu)
Medium
Unassigned

Bug Description

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 Gnome shell / Gnome settings volume control adjusts the USB speaker volume. Despite 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

Ben (soupcan) wrote :
description: updated
Changed in pulseaudio (Ubuntu):
importance: Undecided → Medium
status: New → Triaged
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