I cannot seem to get my XPS 13 Ultrabook to recognise my Ultrasharp Monitor. I have them connected via a mini DisplayPort to DIsplayPort cable. Monitor input set to DisplayPort of course.
HD Intel Graphics panel only shows built in monitor as as option. No external monitor pickead up. I also tried Fn F1 to force switch but my Laptop refuses to recognise.
Am I missing some setup stage? Any additional driver I need to install?
My laptop is running Windows 10 (upgraded from original installed Win8). Intel Graphics 4000.