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I just set up Pipewire on my system, but there is one thing that bugs me: when I turn off my external DAC, and then turn it back on, Pipewire will not reconnect to it. With Pulseaudio, this issue could be resolved by loading module-switch-on-port-available. According to the Pipewire Gitlab page, there is an alternative to this functionality though the session manager, however, I have not been able to find out what this alternative is.

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Reset to default
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While I am not sure if this solution replicates the old behavior exactly, it manages to switch the output to my DAC whenever I turn it on, so I am considering it as a solution to my question.

locate your pipewire-pulse.conf file. Mine is in ~/.config/pipewire, but yours could be located elsewhere. You will see the following:

pulse.cmd = [
    { cmd = "load-module" args = "module-always-sink" flags = [ ] }
    #{ cmd = "load-module" args = "module-switch-on-connect" }
    #{ cmd = "load-module" args = "module-gsettings" flags = [ "nofail" ] }
]

Uncomment the line #{ cmd = "load-module" args = "module-switch-on-connect" }, then save the file and restart pipewire. On my non-systemd system (MX Linux) this is done by killing the pipewire, pipewire-pulse, and wireplumber processes, then running sudo pipewire-start &. On systemd you can restart pipewire like any other service.

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  • I probably did something wrong, but adding this to ubuntu-23.10 caused tons of delays and slow-down, most apps were unstable (including gnome-terminal-server). I'll come back if I find how to get this to work.
    – r2evans
    Feb 7 at 17:05

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