88 Setting Up and Using Your Tablet-PCAdjusting Brightness on the LED Backlit Thin-and-Light LCDWhen a Dell Tablet-PC equipped with the LED backlit thin-and-light LCDdisplay is running on battery power, you can conserve power by setting thedisplay brightness to the lowest comfortable setting by pressing andthe up- or down-arrow key on the keyboard.NOTE: Brightness key combinations only affect the display on your Tablet-PC, notmonitors or projectors that you attach to your Tablet-PC or docking device. If yourTablet-PC is connected to an external monitor and you try to change the brightnesslevel, the Brightness Meter may appear, but the brightness level on the externaldevice 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: If your operating system display default is set to a specific value, you mayhave to reset your manual selections after using sleep, standby, or hibernate mode.Adjusting Brightness on the Dual-bulb (CCFL) LCDThe Dual-bulb LCD includes an integrated ambient light sensor (see "FrontView" on page 27).1 ambient light sensor1
