Dell Latitude 120L - Manual (Page 23)

Using the Display
Adjusting Brightness
Switching the Video Image
Setting Display Resolution
Dual Independent Display Mode
Swapping Primary and Secondary Displays
Adjusting Brightness
When a Dell™ computer is running on battery power, you can conserve power by setting the brightness to the lowest comfortable setting by pressing
and the up- or down-arrow key on the keyboard.
The Dell QuickSet Brightness Meter shows the current brightness setting for the display. You can click the icon in the taskbar and then select or deselect
Disable On Screen Brightness Meter to enable or disable the Brightness Meter on the screen.
You can press the following keys to adjust display brightness:
l Press and the up-arrow key to increase brightness on the integrated display only (not on an external monitor).
l Press and the down-arrow key to decrease brightness on the integrated display only (not on an external monitor).
For more information on using QuickSet, right-click the icon in the taskbar and click Help.
Switching the Video Image
When you start the computer with an external device (such as an external monitor or projector) attached and turned on, the image may appear on either the
computer display or the external device.
Press to switch the video image between the display only, the external device only, or the display and the external device simultaneously.
Setting Display Resolution
To display a program at a specific resolution, both the graphics card and the display must support the program, and the necessary video drivers must be
installed.
Before you change any of the default display settings, make a note of the default settings for future reference.
NOTE: By default, the Brightness Meter appears in the lower-right corner of the display when you use the keyboard shortcuts to adjust display
brightness. You can click and drag the meter to a preferred location.
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
appears, but the brightness level on the monitor does not change.