ThinkPad Edge E440, Руководство пользователя

Страница: 58 / 190

Your projector might have one or more audio-input connectors. To project sound, you need to attach
the combo audio connector on your computer to these connectors, using an audio cable (commercially
available).
Using dual displays
This section introduces the Duplicate and Extend desktop functions that enable you to display output on
both the computer display and an external monitor.
Using the Duplicate or Extend desktop function
With the Duplicate desktop function, you can display the same output on both the computer display and
an external display. You also can display different desktop images on each monitor with the Extend
desktop function.
You can use the Duplicate or Extend desktop function without changing any settings. If the function does
not work, refer to the following topic on how to enable the Duplicate or Extend desktop function.
Enabling the Duplicate or Extend desktop function
To enable the Duplicate or Extend desktop function, do the following:
1. Connect the external monitor to the monitor connector; then connect the external monitor to an
electrical outlet.
2. Turn on the external monitor.
3. Press F7, then select Duplicate or 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, which is for the primary display (the computer display by default).
3. Set the resolution for the primary display.
4. Click the Monitor-2 icon, which is for the secondary display (the external display by default).
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.
Considerations for using the Extend desktop function
• If you want to show DOS full-screen while in 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 primary display by doing the
following:
1. Press Ctrl+Alt+Fn+F12. The Intel CUI window opens.
2. Select Extended Desktop .
3. Change the setting to designate the primary display.
• If your computer has the AMD
®
graphics card, you can designate the primary display by doing the
following:
1. Right-click on the desktop and then select Screen resolution .
2. Select Extend these displays in Multiple Displays .
3. Change the setting to designate the primary display.
42
User Guide