I think i found a solution. I'm commenting this lines #load-module module-switch-on-port-available #load-module module-switch-on-connect in etc/pulse/default.pa and all work for me.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1850887 Title: Audio / Sound reverts to HDMI when power event occurs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1850887/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs