I have set up a multi seat system, distribution of input devices and displays is working.

Now I want to assign Audio devices to the users.
Audio is supposed to be played over HDMI, so the displays play the sound.

Playing sound on the displays is not a problem and already working, but only for one user, who then steers all output.

Is there some way to assign, say, display 1 and 2 to user 1, 3 and 4 to user 2, 5 and 6 to user 3 and so on?

I have pavucontrol (pulseaudio) already installed.

How can I set up a Multi-Seat system with independent sound outputs via pulseaudio? The users have seperate Graphics cards playing the sound.

closed as too broad by Rui F Ribeiro, JigglyNaga, schily, Archemar, RalfFriedl Dec 8 '18 at 17:08

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • Are you using loginctl? – Stephen Kitt Dec 7 '18 at 9:49
  • @StephenKitt No, as this is a systemd thing. slackware doesn't support it. – Werdck Dec 7 '18 at 10:16
  • I have no personal experience with Slackware, but I will comment that this type of thing is significantly easier if you have physically distinct audio cards for each seat, and use per-user sessions for sound servers (if done that way, you can just figure out what seat the user is at on login, and when their sound server starts, have it configured such that it can only touch their sound card). – Austin Hemmelgarn Dec 7 '18 at 20:45
  • "Separate graphics cards playing the sound"? Did you mean separate audio cards? – Jeff Schaller Dec 10 '18 at 12:44
  • Nope. There is audio over HDMI, so it's the graphics cards that play the sound here. – Werdck Dec 10 '18 at 13:08