It has to be fixed in 18.04 first. And after that it may get backported to 17.10 only if people can confirm the fix is helping them. I would love to get feedback from more users on that -- it seemed to not make any difference for me when I tried it.
Bionic users will have the fix soon at least: https://launchpad.net/ubuntu/+source/pulseaudio/1:11.1-1ubuntu3 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1732629 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1732629/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp