Using Dual Displays - Lenovo ThinkPad Edge E320 User Manual
(english) user guide
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part of the high-resolution screen image your computer produces. You can see other parts of the image
by moving the screen with the TrackPoint or other pointing device.
Note: The virtual screen function is not supported on Windows 7.
• If the external monitor you are using is outdated, the resolution and the refresh rate may be limited.
Using dual displays
Using the Extend desktop function
Your computer supports a function named the Extend desktop. With the Extend desktop function, you
can display output on both the computer display and an external monitor. You can also display different
desktop images on each monitor.
You can use the Extend desktop function without changing any settings. If the function does not work, refer
to "Enabling the Extend desktop function" on page 42 to enable it.
Considerations for using the Extend desktop function
• 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
display by doing the following:
1. Press Ctrl+Alt+Fn+F12. The Intel CUI window opens.
Note: For any combination of the Fn key and a function key, press the Fn key first; then, while holding
the Fn key down, press the desired function key.
2. Select Extended Desktop.
3. Change the setting to designate the primary display.
If your computer has the AMD display adapter, you can designate the other display as the primary
display as follows.
1. Right-click on the desktop, then select Screen resolution.
2. Select Extend these displays in Multiple Displays.
3. Change the setting to designate the primary display.
• When an application using the DirectDraw or the Direct3D is played in full-screen mode, it is shown
only on the primary display.
• You cannot use the display switching function when you are in the Extend desktop mode.
Enabling the Extend desktop function
To enable the Extend desktop function, do as follows:
For Windows 7:
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 F6, then select Extend.
To change the resolution for each monitor, do as follows:
1. Right-click on the desktop, and click Screen resolution.
2. Click the Monitor-1 icon (for the primary display, the computer display).
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User Guide
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display adapter, you can designate the other display as the primary
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