In particular, ensure your monitor is plugged into the wall and receiving power, and double-check that the cable going to your PC is firmly plugged in at both ends. If you have a graphics card, your monitor should be plugged into that, not the HDMI port on your motherboard.
0:385:31How To Setup 3 Monitors On Laptop | Triple Monitor Setup – YouTubeYouTube
Set up dual monitors on Windows Select Start , then open Settings . Under System , select Display . … Use the dropdown list next to the image of your desktop to choose how your screen will project across your displays. Once you’ve chosen your setup, select Apply.
To do so, follow these steps: Right click on a random free spot on your desktop and open the NVIDIA Control Panel. In the NVIDIA Control Panel, click Set up multiple displays. Check all the boxes for the monitors that you want to use. Save the changes and restart your . . . Read more
How to fix external monitor connection issues via hardware troubleshooting Confirm the monitor is connected to a power source. Confirm the monitor is turned on. Turn off then turn on the computer to refresh the connection. Use the monitor’s built-in controls and select the correct input port.
1:096:52How to Connect 3 Displays to your PC / Laptop computer – YouTubeYouTube
HDMI Splitter Just plug the single USB end into your computer’s HDMI port, and plug each of your two monitors into each of the two HDMI ports at the other end of the adapter. … If you’re looking to display on 3 multiple screens, then this device can be at . . . Read more
HDMI splitters (and graphics cards) can send video output to two HDMI monitors at the same time. But not just any splitter will do; you need one that works well for the least amount of money.
0:231:33How To Connect Two Monitors To One Computer – YouTubeYouTube
Dual Screen Setup for Desktop Computer Monitors Right-click on your desktop and select "Display". … From the display, select the monitor you wish to be your main display. Check the box that says "Make this my main display." The other monitor will automatically become the secondary display. When finished, click . . . Read more