Can't run 120 hz in game options??

Yoo guys so I am basically playing on a laptop hooked up to a screen that runs 120 HZ, and normally i can only do 120 hz ingame if the resolution is 1080*764/784 or whatever the **** it is. Anybody who knows a solution to this problem? But in video options On blackrock i can only run 60 HZ :( Anyone who knows a solution to the problem?

You need to change something in your folder, at WoW > WTF > Config, and you will find « gxRefresh "60" », you can change "60" per "120".

I am not sure, but it worked for me