So, the title says it all. The speakers of my Acer Predator 15 (Predator G9-591) are not working and taking a look at the HD Audio Manager says that the headphones jack is plugged in, even though there is nothing plugged in. I already used high pressure air cleaner, but that didn't work.
I re-installed my drivers (based on the drivers from the Acer site), so I have no idea what else to do.
I'm running Windows 10.