Using the Display
Adjusting Brightness
When a Dell™ computer is running on battery power, you can conserve power by setting the display brightness to the lowest comfortable level.
•Press <Fn> and the
•Press <Fn> and the
NOTE: Brightness key combinations only affect the display on your portable computer, not monitors or projectors that you attach to your portable computer or docking device. If your computer is connected to an external monitor and you try to change the brightness level, the Brightness Meter may appear, but the brightness level on the external device does not change.
Switching the Video Image From Your Computer Display To a Projector
When you start the computer with an external device attached (such as an external monitor or projector) and turned on, the image may appear on either the computer display or the external device.
Press <Fn><F8> to switch the video image between the display only, the external device only, or the display and the external device simultaneously.
Setting Display Resolution and Refresh Rate
NOTE: If you change the display resolution from the current settings, the image may appear blurry or text may be hard to read if you change the resolution to one not supported by your computer and display. Before you change any of the display settings, make a note of the current settings so you can change back to the previous settings if needed.
Using the Display
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