Lenovo ThinkPad T550, User Manual

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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.
Note: If you set a higher resolution for the computer display than the external display, only part of the screen
can be shown on the external display.
Using audio features
Your computer is equipped with the following items:
• Audio connector, 3.5 mm (0.14 inch) in diameter
• Microphones
• Speakers
Your computer also has an audio chip that enables you to enjoy various multimedia audio features, such
as the following:
• Compliant with High Definition Audio
• Playback of MIDI and MP3 files
• Recording and playback of PCM and WAV files
• Recording from various sound sources, such as a headset attached
Chapter 2
.
Using your computer
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