My headphone jack doesn't work under Windows 7 64 bit.
I tried the following things:
- 3 different headphones speakers
- 2 different versions of the Realtek driver (2.7 / 2.6)
- Standard Windows 7 drivers
I can't see anything apart from "Speakers" in the playback devices (I have enabled Show hidden / deactivated devices). Under Ubuntu there is no problem whatsoever!
When I used the Realtek configurator I wanted to disable the auto-detection of plugged in speakers, but the option (the little folder icon) wasn't there, in neither version.
I use HDMI to connect my screen from time to time. The audio jack from the screen does work (sometimes!). But I guess that's unrelated, because even when I boot Windows without the screen, it still doesn't work.