My sister has an HP laptop and I wish to use it as a monitor for my desktop computer as my main monitor has died. How do you get a laptop to display whats on your desktop PC?
From what I know, the cable that connects the monitor to the PC fits into the laptop, but only changes the resolution of the laptop screen (adding two thick black bars on each side).
So how do I make whats on my desktop computer appear on the laptop?



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