Don't really know what you are asking. Do you mean the HDMI cable? is that coming out of your cable or satellite box or a PC/MAC/Laptop, BlueRay, DVD?

I am guessing because you mentioned drivers you are talking about a computer connected to your TV.

Have you checked the source channel on the TV? can you connect an old monitor or anything to your computer with a VGA cable to make sure your graphics card is not malfunctioning?