The graphics card is updated. The integrated graphics card is also updated. I am able to stream Netflix, Diyney+ or Prime on the laptop without any issue (without monitor).
When the Dell monitor is connected as the secondary display through an HDMI cable, its still normal. Other streaming services like YouTube and other news websites like CNN, BBC and MSN (live TV) all work fine. I am able to drag the window in this case. I am also able to work normally by dragging windows, resizing them etc.
The second I open these three (and only these three; either through the app or the website) the Dell monitor goes blank and into power saver mode after some time. I am still able to drag windows there. I just cannot see what's happening because its blanked. Only the laptop screen is active in that case.
The high-speed HDMI cable is getting delivered tomorrow.