My notebook is an Asus S46CB. It come with a GForce 740M and an Intel Graphics HD 4000. When I use two monitors (notebook + extra monitor), it shows screen interference in the notebook screen. If I force the use of the Gforce it doesn´t happen. I have already changed the cables and have updated to the last version of the drivers. The Intel Graphics driver is 10.18.10.4252.
What could I possibly do? I´m thinking of rolling back to Windows 8.1.
For the dual monitor at this moment will work best using the GForce 740M Graphics.
This is your primary video chipset for this model system.