Chắc rằng máy tính của bạn có thể hỗ trợ nhiều màn hinh. Xác định ngõ ra video trên máy tính. Xác định ngõ vào video trên màn hình của bạn. Mua cáp kết nối màn hình với máy tính (nếu cần). Cắm một đầu cáp vào máy tính. Cắm đầu còn lại vào màn hình. Mở nguồn màn hình. Mở Start. Mở Settings. Nhấp vào tùy chọn System (Hệ thống) có biểu tượng màn hình ở phía trên bên trái cửa sổ. Nhấp vào Display (Hiển thị). Cuộn xuống và nhấp vào khung thả xuống "Multiple displays" (Nhiều màn hình). Chọn tùy chọn hiển thị.

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This isn't usually an issue for laptop computers, but your desktop computer may not meet the requirements for adding a second monitor:   Laptop — If your laptop has at least one video output port, you can use it to connect a second monitor.  Desktop — Your desktop computer must have at least two video ports in total (one to connect the primary monitor and one to connect the second monitor). The ports do not have to match, but they do have to be a part of the same graphics card; this means that if you have two graphics cards installed, you'll need to use the same one for both monitors. Video output ports are found on the side of your laptop or, if you're using a desktop computer, on the back of the tower next to the port into which your primary monitor is plugged. Common output ports include the following:   HDMI — Resembles a six-sided, flat port.  DisplayPort — Resembles a rectangular port with a crimped side.  USB-C — Resembles a thin, rounded oval port.  VGA — Resembles a colored trapezoid with pinholes in it. VGA isn't common on post-2012 computers, but you may have to work with VGA if you're connecting a new computer to an old monitor (or vice versa). Modern monitors tend to use either DisplayPort or HDMI ports for their inputs, but some monitors will also have VGA ports. If you have an exceptionally old monitor, you may find a DVI port on the back of your second monitor. DVI ports resemble white boxes with clusters of holes, as well as a section with a few separate holes. If you don't have a cable which can connect your computer to your monitor (e.g., an HDMI cable), you'll need to buy one.  If your computer and your monitor both have a common port (e.g., HDMI), it's easier (and cheaper) to buy a cable that fits both ports even if a higher-definition option is available. If the monitor's input doesn't match your computer's output (e.g., if the monitor uses a VGA input while your computer uses an HDMI output), you will need to buy an adapter. Some video output combinations, such as HDMI to DisplayPort,...