He saw me pecking away with my laptop monitor up one day and said, "Why don't you use that as a second monitor?" After I told him to frack off, I realized it wasn't a bad idea. And it's uber easy.

Second monitor for the laptop – directly or via adapter. Ultrabooks such as the Microsoft Surface Pro 9 focus on USB-C to output video signals via DPAlt mode.

Here's how to use a laptop as a monitor, so you can have a second screen for your Windows or macOS device, or use it as a display for your desktop PC.

Step 1: Start with the computer that you want to use as a second screen. Here, Search for Settings in the Menu search box, and select Settings to open the window. From Settings, Choose System.Once ...

Most people transfer their laptop display to a larger monitor. However, seeing folks use a laptop as a second screen is less common. The feature could give you the benefits of having two screens.

Head over to Amazon to get the WGK Portable Monitor 15.6‑inch for just $50, down from its usual price of $84. That’s a ...

Adding a second monitor to your workstation can greatly improve your productivity. Take it from me: There’s nothing like having your Web browser running on one screen and, say, your word ...

DIY web site Instructables has a very intense but very cool tutorial for converting a laptop into a second monitor. This is a "roll up your sleeves and hope you don't screw it up" project, but it ...

Now, with this portable second monitor, I don’t have to do that. ... Now, every time I leave the house, I slip this screen into my laptop bag along with my computer.

If your laptop is not detecting a second monitor, it could be due to an outdated or corrupted graphics driver. Updating the driver is a simple solution that can often fix the problem.