My head phones don't work either, apperantly this is quite an issues with this model.. Even though mine is the HP Envy 17,3" Touchsmart, Only one of my headphones works (theRight one) and the other does not. I tried 3 pairs, including a Beats pair, and got the same result. I tried everything that was posted here, but still nothing.
What can I do, everything else works, just not my left headphone!