My on board speakers work fine but when I plug in the headphones, I get no sound. The only way I can get the headphones to work is to restart my hp laptop with the headphones plugged in. But once the laptop goes to sleep it won't read the headphones anymore and I have to remove them to get sound from the speakers. The only thing under playback devices is speakers/hp. Even when the headphones are working. The set default button is grayed out. Under properties, the controller information is realtek high definition audio. The drivers are updated. The headphones icon isn't under the recording devices either. I've tried to uninstall the realtek audio and reinstall but no change. Any assistance would be greatly appreciated. Thanks.