ok - "chmod -x /usr/bin/aplay" solves it. Now that aplay does not run pulseaudio no additional instances is run.
Now the question is why aplay runs pulseaudio. Lokking the the alsa-repositories I found the following * alsa-utils - nothing interesting. * alsa-lib - nothing interesting. * alsa-plugins - lots of pulseaudio related stuff. It also turns out that leaving aplay executable and uninstalling libasound2-plugins gives a working system with no duplicate pulseaudio processes. ** Package changed: pulseaudio (Ubuntu) => alsa-plugins (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1296425 Title: pulseaudio is started twice - effectively making device management impossible. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-plugins/+bug/1296425/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
