HI there, I have the same issue, my speakers stopped working, then would work at random for no apparent reason. Now they will not work at all and we can connect speakers or headphones to hear sound.
I have an HP Pavillion G7
Product: LF158UA#ABA
Model: G7 - 1019WM
It also has issues overheating, keeps saying that it needs to shut down because it is too hot.
Please let me know whaty you think!
Thanks!!!