Using the Display 816Using the DisplayAdjusting BrightnessWhen a Dell™ computer is running on battery power, you can conserve powerby setting the display brightness to the lowest comfortable setting by pressing and the up- or down-arrow key on the keyboard.NOTE: Brightness key combinations only affect the display on your portablecomputer, not monitors or projectors that you attach to your portable computer ordocking device. If your computer is connected to an external monitor and you try tochange the brightness level, the Brightness Meter may appear, but the brightnesslevel on the external device does not change.You can press the following keys to adjust display brightness:• Press and the up-arrow key to increase brightness on the integrateddisplay only (not on an external monitor).• Press and the down-arrow key to decrease brightness on theintegrated display only (not on an external monitor).NOTE: In some cases you will not be able to keep your manual selections afterusing Sleep/Standby mode. Your selections may come back with a darker LCD.Using a ProjectorWhen you start the computer with an external device (such as an externalmonitor or projector) attached and turned on, the image may appear oneither the computer display or the external device.Press to switch the video image between the display only, theexternal device only, or the display and the external device simultaneously.
