Basically, I upgraded to Windows 10 from 7 and now the audio will no longer auto switch between front and rear jacks depending on if my headphones are plugged in or not.
I thought there was a switch where front jack always took priority to the rear.
I can get sound from both but I have to switch default device.
I think previously it would know that there was no headphones plugged in but it seems that I thinks that it is a permanent playback device.
Driver is VIA HD Audio and has been uninstalled and rebooted several times.