I had the same problem after upgrade to 20.04 Setting / Sound / Output / Test produced no sound.
Pressing the test button resulted in an error in syslog: gnome-control-c: Failed to play sound: No such driver libcanberra-pulse was missing: apt search libcanberra libcanberra-pulse/focal 0.30-7ubuntu1 amd64 PulseAudio backend for libcanberra Installed via sudo apt install libcanberra-pulse Problem resolved. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1879989 Title: "Failed to play sound: No such driver" ubuntu 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1879989/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
