Lenovo ThinkPad L390 User Manual page 29

2. Connect the external display to an electrical outlet.
3. Turn on the external display.
If your computer cannot detect the external display, right-click a blank area on the desktop, and then click
Display settings ➙ Detect.
Supported resolution
The following table lists the supported maximum resolution of the external display.
Connect the external display to
the USB-C connector
the HDMI connector
Connect to a wireless display
To use a wireless display, ensure that both your computer and the external display support the Miracast
feature.
• Open the Start menu, and then click Settings ➙ Devices ➙ Bluetooth & other devices ➙ Add
Bluetooth or other device. In the Add a device window, click Wireless display or dock. Then, follow the
instructions on the screen.
• Click the action center icon
display and follow the on-screen instructions.
Set the display mode
Press or
• PC screen only: 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.
• Second screen only: Displays 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.
Change display settings
1. Right-click a blank area on the desktop and select Display settings.
2. Select the display that you want to configure.
3. Change display settings of your preference.
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.
in the Windows notification area and click Connect. Select the wireless
and then select a display mode of your preference.
Supported resolution
Up to 4096 x 2160 pixels / 60 Hz
Up to 3840 x 2160 pixels / 30 Hz
®
in full-screen mode, only the main display shows the
Chapter 2
.
Get started with your computer
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