With Orientation , you can choose to have your screens horizontally (Landscape), or vertically (Portrait). To change the display mode between two screens, you use the Multiple displays section. There are four sections for you to choose from, which are two screen multiplexing modes (Extend these displays), displaying two identical screens (Duplicate these displays), or only one screen display (Show desktop on cups on 1, Show desktop on ly on 2).
For laptops, there is another way to quickly switch between the display modes of the two screens, so choose the Connect to a projector option directly below the selected items. A window will pop up so you can quickly choose between four modes: Computer only , Duplicate , Extend and Projector only . You will see the Projector in this menu as the second screen attached to the laptop's VGA port. If you are not in the Screen Resolution window, you can use the Windows + P shortcut combination to turn this menu on.
Set up to use multiple monitors on Windows 8 / 8.1 and Windows 10:
After connecting the screens to your computer, right-click on desktop> Screen Resolution to set up the main screen, the resolution for each screen.
In Display : You select the screen you want to set, to select the screen that is the main screen, tick Make this my main display .
Resolution : Select the resolution for the screen
Orientation : Select the display type of the screen: horizontal, vertical, horizontal but overturned, vertical but reversed
In Multiple displays : Select the type to use multiple monitors:
Duplicate these displays: Repeat the image on the main screen for all monitors
Extend these displays: Expand the screens, one after another
Show desktop only on 1: Only display screen number 1, will have on 2, on 3, depending on the number of screens you connect to the device. In this article we only connect 2 monitors.
To project from the small screen to the big screen, select the Duplicate these displays option, if you want to expand the workspace, select the option Extend these displays. To display applications on the extended screen, you simply drag the part you want to display to that screen. In the screen expansion mode, the mouse will automatically switch to the next screen when running out of the boundary of the current screen.
There is a faster way to set up multiple screens is to press the Windows + P shortcut, here you will have some options like the picture. Choose the one you want.
Tweak your mouse to multiple monitors
Finally, tweaking your mouse will also make your multi-screen experience better. Speeding up your mouse significantly increases the speed of the mouse pointer when you hover at high speed. This is especially useful for quickly moving between screens.
Some other mouse-related tweaks are changing the size and color of the mouse pointer to make it easier to distinguish. You should also click on the 'Show location of pointer when I press CTRL key' setting ( indicate the location of the cursor when pressing the Ctrl key ) in the Mouse Properties> Pointer Options section.
Some errors of using multiple monitors
Your intention is to merge two or three screens into a wide screen. However, the virtual widescreen you create will be blocked into individual parts by the gaps created by the edges of the physical screens. The images stretching through the two screens will be interrupted in the middle. So when choosing to buy, you should choose the type of screen with two sides as thin as possible. Most users of multiple monitors will place more noticed programs on the main screen, while less-used programs will be on the remaining screens.
But some programs fail when you run it on secondary screens, especially DVD movie applications. The reason is that DVD video playback applications often use overlay, which is programmed to work only on the main screen. When you bring the screen showing this DVD movie to the secondary screen, it will not show anything. Because of this error, most old games on a single computer can only run on the main screen, and fail when running on the second monitor.
See more:
Instructions for connecting the projector to a computer, laptop
How to connect laptop to TV?
How to fix some errors connecting TV to laptop via HDMI port
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