Public bug reported: Just as the title says, if a usb sound card is in use pavucontol's settings are ignored. This appears to be an unintended result of the changes made to address bug #1702794. Specifically if you now look at /etc/pulse/default.pa you'll find this section:
### Use hot-plugged devices like Bluetooth or USB automatically (LP: #1702794) .ifexists module-switch-on-connect.so load-module module-switch-on-connect .endif So you must comment out those three lines in order for pavucontrol device default settings to be respected if a usb sound card is plugged in at reboot or startup. It's not a big deal but I hadn't run across this in the past and couldn't find an existing bug report. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: pavucontrol 3.0-4 ProcVersionSignature: Ubuntu 4.15.0-45.48-generic 4.15.18 Uname: Linux 4.15.0-45-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 CurrentDesktop: GNOME-Flashback:GNOME Date: Tue Feb 19 21:05:18 2019 InstallationDate: Installed on 2018-01-28 (387 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) SourcePackage: pavucontrol UpgradeStatus: Upgraded to bionic on 2018-08-15 (188 days ago) ** Affects: pavucontrol (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic third-party-packages -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1816687 Title: Bionic pavucontrol fails to set default device if usb sink or source exists To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pavucontrol/+bug/1816687/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs