[Bug 1732629] Re: Selecting USB Amp/Dac audio output in gnome sound does nothing

[Daniel van Vugt]

^ Maybe ignore that patch for now. See bug 1718824 instead.

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Title:
  Selecting USB Amp/Dac audio output in gnome sound does nothing

Status in pulseaudio package in Ubuntu:
  In Progress

Bug description:
  Running Ubuntu 17.10, when I plug an external USB Amp/Dac it is
  correctly recognized and I can play audio through it via aplay, but
  when I select it as my output sink from gnome sound, nothing happens:
  apps still output sound via the speakers.

  In order to fix it I have to restart pulseaudio.
  I've also found online that modifying /etc/pulse/default.pa, moving module-switch-on-connect.so loading before module-udev-detect.so, permanently fixes the issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: pulseaudio 1:10.0-2ubuntu3
  ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
  Uname: Linux 4.13.0-16-generic x86_64
  ApportVersion: 2.20.7-0ubuntu3.4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC1D0p:   sergio     1374 F...m pulseaudio
   /dev/snd/controlC1:  sergio     1374 F.... pulseaudio
   /dev/snd/controlC0:  sergio     1374 F.... pulseaudio
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Nov 16 09:03:19 2017
  InstallationDate: Installed on 2017-10-24 (22 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170926)
  ProcEnviron:
   LANGUAGE=en_GB:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SourcePackage: pulseaudio
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/08/2017
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.3.4
  dmi.board.name: 0X41RR
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A02
  dmi.chassis.type: 10
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr1.3.4:bd06/08/2017:svnDellInc.:pnPrecision5520:pvr:rvnDellInc.:rn0X41RR:rvrA02:cvnDellInc.:ct10:cvr:
  dmi.product.family: Precision
  dmi.product.name: Precision 5520
  dmi.sys.vendor: Dell Inc.
  modified.conffile..etc.pulse.default.pa: [modified]
  mtime.conffile..etc.pulse.default.pa: 2017-11-15T18:42:36.359190

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