Typically, the computer automatically recognizes the second monitor after connecting. You just have to go to the operating system settings, and choose the most convenient mode of operation c multiple screens.
If the new device does not appear in the settings menu, make sure that you are properly connected to your computer and an electrical outlet, and do not forget about the power button.
If you monitor multiple ports for video, you may have to manually activate one of them, through which you connect your computer. To do this, call by hardware screen menu buttons and select it right port: HDMI, VGA or other. Usually monitors one or two buttons, so you need to you should find no problem. If necessary, you can see the instructions for your model.
How to set up 2 monitors in Windows
Open display settings. IN Windows 10 This menu is located in the "Settings» → «System» → «Display». In other versions of Windows, the location of the settings may be different. But almost any system they can also be accessed through the control panel, or the context menu by clicking Right-click on the desktop or via the Windows search for the terms "display", "Display" or "Monitor".
All connected to the computer is displayed in the settings menu in the form of rectangles. Select underneath one of the three regimes of the desktop display.
1. duplication screens
In this mode, both monitors synchronously show the same image. But if one of them does not support the second resolution, the display with a lower resolution desktop will be reduced and there will be black field.
Duplicate screens handy if you use them, for example, for presentations: one display for you, the other - for the audience.
2. Extended desktop
Selecting the extension of the desktop, you divide it between the displays. Each of them will show only a fragment of the available area. You can choose which part of the desktop will display a specific display. To do this, move the rectangles screens to each other.
This mode is used to improve multitasking. So, you can run on each display different programs and see them in front of him at the same time. Very handy if you need to work with several windows that do not fit on one screen.
3. Using one of the connected display
This mode is leaving active only the selected screen, the other continues to operate, but with the backlight off. This option is often used owners NotebookTo work at a large external display instead of the built. External leave active and darkened built slightly lowered with the lid out of the way to look at the big screen.
Combination Win + P It allows you to switch between display modes on the fly:
By selecting the appropriate mode, you can adjust the resolution of active displays and other familiar settings. After that, everything will be ready for use.
How to set up 2 monitors in macOS
Expand the Apple menu, go to "System settings» → «Monitor" tab and click on the "Location". You will see the blue rectangles that represent connected to computer screens. Select this menu one of two modes display the desktop.
1. Extended desktop
This mode macOS works in much the same way as in Windows. Desk is divided between the two screens, and you can freely distribute between open windows. When the cursor is outside the boundaries of the display, it appears on the other. To adjust how much of the desktop displays on each screen, simply move the rectangles relative to each other.
One of the display in this mode is basic and contains all the labels. In his box displays a white stripe. To make the basic another screen, drag strip in his box.
2. videopovtor
Replay mode is similar to the screens overlap in Windows. When it is selected, rectangles in the diagram are merged into one and all displays show the same image. To activate this feature, check the "Enable videopovtor monitors."
After selecting the desired mode, then click the "Monitor" and adjust the resolution and other parameters of the screen, if necessary. Then you can start to work.
closed display mode
In addition to these, MacOS supports a special closed-display mode. With it can be used as a MacBook system unit with the lid closed.
This mode is activated automatically when the following conditions. The notebook must be on charging and sleep. In addition, it must be connected monitor and keyboard or mouse. If the press on the keyboard or the mouse button, the laptop wakes up, the external screen is working, and built will remain off.
If you connect a keyboard or mouse for Bluetooth, then use a closed display mode need to allow wireless devices to output the Mac wakes from sleep. This can be done in the Bluetooth settings.
If you have not yet purchased a monitor
Before buying, make sure that your monitor and computer support the same transmission interface, whether HDMI, DVI, DisplayPort or another. This will help to avoid compatibility issues.
If the monitor you want to use the TV, you will come in handy instruction Layfhakera to connect.
see also
- Why is the simultaneous use of multiple monitors decreases the productivity →
- What to do if you do not turn on the computer →
- 25 different games that you can play on a weak computer →