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pactl list
nano ~/.config/systemd/user/set-surround.service
[Unit] Description=Set Sink in PipeWire (user session) [Service] Type=oneshot ExecStart=sh -c "sleep 30; /usr/bin/pactl set-card-profile alsa_card.pci-0000_09_00.1 output:hdmi-surround-extra3" [Install] WantedBy=default.target
systemctl --user daemon-reload
systemctl --user enable set-surround.service
systemctl --user start set-surround.service