How to build a green screen?

330m black screen not registering build in display?

• I have an alienware m11x and the intel hd graphic instead of the 330m that it came with( happened recently didn't happen when I bought it been about 1 year) I updated the divers for the 330m and disabled the hd graphics and my screen goes black! Using team view I was able to still see through the black screen from my other computer a d notice the display changed to VGA( even tho I have hdmi output and not VGA ) instead of my build in display! I hit detect monitors and it gives me none while I'm running the 330m! Any ideas what's causing this or how can it detect the laptop screen!

• Answer:

  use teamviewer go to the device manager and remove the new driver put it back to the way it was turn on steam and play left for dead 2