Lenovo ThinkPad X280 User Manual page 52

Do not connect external displays to the USB-C connector
Otherwise, only the external display connected to the USB-C connector
the priority between the USB-C connector and the HDMI connector, start the ThinkPad Setup program
(see "Configuring ThinkPad Setup" on page 63), and then configure the Shared Display Priority in
"Config menu" on page 65.
• Connecting a wireless display
Note: To use a wireless display, ensure that both your computer and the external display support the
Miracast feature.
Do one of the following:
– Open the Start menu, and then click Settings ➙ Devices ➙ Connected devices ➙ Add a device.
– Click the action center icon
display and follow the instructions on the screen.
For more information, see the Windows help information system.
Choosing a display mode
You can display your desktop and apps on the computer display, the external display, or both. To choose
how to display the video output, press the display-mode switching key
you prefer.
There are four display modes:
• Disconnect: Displays the video output only on your computer screen.
Note: Depending on the situation, you might see Disconnect, PC screen only, Computer only, or
Disconnect projector.
• Duplicate: Displays the same video output on both your computer screen and an external display.
• Extend: Extends the video output from your computer display to an external display. You can drag and
move items between the two displays.
• Projector only: Shows the video output only on an external display.
Note: Depending on the situation, you might see Projector only or Second screen only.
If you show programs using DirectDraw or Direct3D
video output.
Changing display settings
You can change the settings for both the computer display and the external display. For example, you can
define which one is the main display and which one is the secondary display. You also can change the
resolution and orientation.
To change display settings, do the following:
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X280 User Guide
in the Windows notification area. Click Connect. Select the wireless
®
in full-screen mode, only the main display shows the
1 and the HDMI connector
1
will work by default. To change
and then select a display mode
2 at the same time.