Ok, I think it was kind of my fault. I noticed that current VirtualBox version has an option, per Virtual Machine, which allows to select the Audio Device. It was set to Alsa and I changed to PulseAudio, now it seems fine.
But, anyway, isn't this supposed to work without conflicts even if the output was set to Alsa? PulseAudio doesn't emulate for multiple alsa devices? -- VirtualBox is blocking audio https://bugs.launchpad.net/bugs/202957 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs