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Playing sound
Your projector might have one or more audio-input connectors. To project sound, you will need to attach the
combo audio jack on your computer to these connectors by using an audio cable (commercially available).
Using the Extend desktop function
Your computer supports a function named the Extend desktop function. With the Extend desktop function,
you can display output on both the computer display and an external monitor. You also can display different
desktop images on each monitor.
Considerations for using the Extend desktop function
• When an application using DirectDraw or Direct3D is played in full-screen mode, it is shown only on the
primary display.
• If you want to show DOS full-screen while in the Extend desktop mode, only the primary display shows
DOS; the other display is blacked out.
• If your computer has the Intel graphics card, you can designate the other display as the primary display
by doing the following:
1. Press Ctrl+Alt+F12. The Intel Graphics and Media Control Panel window opens.
2. Select Advanced Mode and click OK.
3. Click Multiple Display.
4. Select the desired display as the primary display.
Enabling the Extend desktop function
To enable the Extend desktop function, do the following:
1. Connect the external monitor to the monitor connector; then connect the monitor to an electrical outlet.
2. Turn on the external monitor.
3. Press Fn+F7, then select Extend .
To change the resolution for each monitor, do the following:
1. Right-click on the desktop, and click Screen resolution.
2. Click the Monitor-1 icon (for the primary display, the computer display).
3. Set the resolution for the primary display.
4. Click the Monitor-2 icon (for the secondary display, the external display).
5. Set the resolution for the secondary display.
6. Click Advanced settings and set up the color quality on the Monitor tab.
7. Click OK to apply the changes.
Using the NVIDIA Optimus Graphics feature
Some ThinkPad notebook computers support NVIDIA Optimus Graphics.
To achieve the best balance between the computer performance and a long battery life, depending on the
graphics quality demand of the running application and the settings of the power plan you use, the NVIDIA
Optimus Graphics feature automatically switches between High Performance Graphics and Energy Saving
Graphics. The dynamic switch allows switching without having to restart your computer, close applications,
or intervene manually.
Note: The NVIDIA Optimus Graphics feature is only supported in Windows 7 operating system.
40 User Guide