I'm having difficulty connecting an LG TV to my computer, I can't understand why because I never thought this would be difficult thing to do. I connected the RGB cable, and the HDMI cables between my PC and the TV, when I change the display mode on the TV it says no signal. My computer is on max performance mode (power settings), and my PC recognizes the TV in the device manager, it also says its working correctly, and I have been checking drivers and they are all up to date. Computer is running windows 10.