I just recieved the HP envy15-J154ca. The speaker and headphone both work. But my problem is that when I plug in the headphone, the sound volume in the headphone will stay the same as speaker, it won't automatically adjust to a lower volume fitting ear. My older computer can do this and it has a headphone option in the sound device of volume control panel. Is that possible to add headphone as sound device or other ways helping automatically lower the volume when plug in headphone?
Thanks.