It's pretty ironic to have problems with audio not recognizing headphones... on WINDOWS.
Multi-trillion (10^12) dollar company, btw.
(Both laptops are reasonably new.)
Hard to believe it's been that long already. Linux has come so far. I remember fighting with audio issues. The most frequent issue I remember having is not being able to have two different programs use the sound card at the same time. Haha. So no system sounds while listening to music.