The correct answer is false
I'm assuming that what you are saying is that while the headphone is plugged in to the computer, it still plays on the computer speakers.
Most likely, the headphone outlet is dirty and need cleaning. To solve this, plug in your headphones into the headphone outlet, and take it out really quickly. Do this for a certain amount of time until it works.
If this does not work, check the settings if you are allowing it to play into external devices or not.
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Im goin to say that the red flags are gonna be instead of saying sams house add the address and for details they need to know if they need to bring anything for a just in case type deal. What games will be played? what time does it start? when does it end?<span />