I am completely new to Windows. I have bought the Alienware M15 laptop.
It has a 1080p display. Now the question is, if my laptop has a native 1080p display, can it ever output 4K digital signal to an external 4K monitor?
Windows – Can a laptop with 1080p native resolution output 4K signal to an external monitor
hdmilaptopmultiple-monitorsresolutionwindows
Best Answer
Yes, and a longer probably Yes.
Yes #1
The output on the laptop screens completely independant of the output on attached monitors. It is no problem to have a very low resolution laptop screen (say 1920x1080) and attach a 4K monitor.
Longer Yes
The display resolution of an external monitor depends on the monitor (well duh!) and the graphics output capability of your laptop. For any modern laptop a 4K screen should not be a problem as long as you have a modern DisplayPort connector or a HDMI 2.0 connector.
Having said that. Alienware is often branded as gaming laptops. Please realise that you can perfectly attach 1 or 2 4K screens, browse the Internet, email, use spreadsheets etc etc, but that 4K gaming is still hard for most current laptops.