Lenovo ThinkPad T450, User Manual

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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 on the desktop, then click Screen
resolution ➙ Detect .
• Connecting a wireless display
Note: To use a wireless display, ensure that both your computer and the external display support the
Wi-Di or Miracast feature.
– For Windows 7
Open the Lenovo QuickDisplay program and follow the instructions on the screen. For how to access
the Lenovo QuickDisplay program, see “Lenovo programs” on page 14.
– For Windows 8.1
1. Move your pointer to the top-right or bottom-right corner of the screen to display the charms.
2. Click Devices ➙ Projector ➙ Add a wireless display .
3. Select the desired wireless display and follow the instructions on the screen.
For more information, see the help information systems of the Lenovo QuickDisplay program and the
Windows 8.1 operating 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 and then select a display
mode 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 .
Note: If you show DOS or programs using DirectDraw or Direct3D
®
in full-screen mode, only the main
display shows the 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:
1. Right-click on the desktop and select Screen Resolution .
2. Select the display that you want to configure.
3. Change display settings as you want.
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User Guide