I have a multiseat system with multiple users and multiple soundcards. PA per user started. How can I prevent that when a users' soundcard is missing or unplugged, the pulseaudio takes another sink/audiocard(of an other user). So my goal is: when the user his soundcard is unplugged: no sound . I commented the lines in default.pa the load-module module-rescue-streams and the load-module module-always-sink but this not solved: the first users gets the sink of user2 if user1 his soundcard is disconnected.