As far as I could tell from testing there is no pin which outputs to the
headphone jack only. Instead the Internal speakers and headphone are the
same output pin. When headphones are plugged in the internal speakers
turn off.
I changed the Headphone pin to a Line Out since when I selected this
out
I've run hda-jack-retask and got the Internal Speakers, Headphone, and
Microphone working. I cannot teste the port replicator as of yet, but
will test it later when I retrieve it from storage.
The headphone jack is not its own output and the laptop auto-switches
internal speakers to headphone upon
