Sound not working all of a sudden?

Reikan Amin

Honorable
Jun 1, 2013
48
0
10,530
So I'm moving one of my younger sibling's room around and get to connecting her PC to the TV. I use a 3.5mm jack and it has been working fine before. Now however it's showing up as "headphones" in sound and nothing can be heard. I don't know if it was showing up as headphones before but can anyone provide some insight on what might be happening here?