How to sync laptop with tv?

I connected my laotop to the tv with usb cable.

now i can watch videos on my tv, the only problem is the sound

now comes from the laptop. But the TV has a lot more power; how can I

change that?

Laptop connected to the television using a usb cable
Why via USB and not HDMI?

Via USB? Just take HDMI, which is also intended for this and transmits the sound.

Made a mistake… Connected with HDMI… Problem remains