If you want to connect an external monitor or projector to your notebook, you can do so via the Mobility Center's External Display panel. Click the Connect Display button and Windows displays the following options (shown in Figure 3):
Figure 3 Windows 7's external monitor/projector options.
- Computer Only. Routes your computer's video to the built-in display only, leaving blank the external display. Use this option when you want to quit using the external display.
- Duplicate. Sends the same video to the internal and external displays. This is a good option if you're connecting to a projector for a presentation and also want to view the presentation on your notebook's display.
- Extend. This option lets you create a super-large desktop that stretches between the internal and external displays. You can then move your mouse from one screen to another in a single motion, as if the two displays comprised a single desktop. This is the option to use when you're running both your notebook's display and an external monitor on your work surface.
- Projector Only. Routes your computer's video to the external display only, leaving blank the internal display. Use this option when you're giving a presentation and don't need to use your notebook display.
And there's more. Click the display graphic and Windows opens the Screen Resolution window, which you can use to change the resolution and orientation (landscape or portrait) of both your internal and external displays.