New
#51
No expert here but i would imagine you would need the internal disabled for your new one to operate
Have you tryed win key + P to swap display outputs when it goes blank, guessing it may need to be set as projector as using external monitor ???
Also if your having driver issues after uninstalling current drivers try Drivers - Clean Left over Files after Uninstalling before installing new ones
Not sure if any of this will help just thought i would throw it out there
Good luck to you my friend