can you do an hdmi input to a laptop screen

If you’re looking to extend your desktop’s display and use your laptop as a second or third monitor for your PC, in this guide, we’re going to show you how to do so. While it might seem like a simple process where all you have to do is connect your laptop to your desktop with an HDMI cable (or other video input cable), the reality is that it doesn’t work like that. The HDMI port (or VGA, or DVI, or DisplayPort) that comes on your laptop will only work for outputting its display and it will not work as a video input for another device.
That means that if you want to display your laptop’s screen on a larger display (TV, monitor, projector, etc.) or connect it to another display to extend your laptop’s display, you can do so by simply connecting the additional display to your laptop. However, you cannot connect your laptop to your PC with a cable to get your laptop to display what your PC is outputting.
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So, in order to get your laptop’s display to function as a monitor for another device, you must either use built-in features on Windows or use third-party software in order to get the two devices working together correctly. And, in this guide, we’ll show you the different options you have for setting up your laptop as either a second display for your PC or as its primary display.