You need to clarify what you're trying to do and what you're trying to do it with.
Are you trying to extend of clone your displays?
Are you using on-board graphics only? If so, what is the model number of your motherboard?
Are you using a discrete graphics card only? If so, what is the model number of your graphics card?
What is the model number of Display 1?
What is the model number of Display 2?
How is Display1 connected (from what port to what port)?
How is Display2 connected (from what port to what port)?
-Wolf sends