Dell Latitude D820 Technical Manual page 27

with your Dell-installed operating system.
If you choose a resolution or color palette that is higher than the display supports, the settings adjust
automatically to the closest supported values.
1. Click Start→ Control Panel→ Display→ Settings.
2. Try different settings for Color quality and Screen resolution.
NOTE: As the resolution increases, icons and text appear smaller on the screen.
If the video resolution setting is higher than that supported by the display, the computer enters pan
mode. In pan mode, the entire screen cannot be displayed at one time. For example, the taskbar that
usually appears at the bottom of the desktop may no longer be visible. To view the rest of the screen,
use the touch pad or track stick to pan up, down, left, and right.
NOTICE: You can damage an external monitor by using an unsupported refresh rate. Before
adjusting the refresh rate on an external monitor, see the user's guide for the monitor.
Dual Independent Display Mode
You can attach an external monitor or projector to your computer and use it as an extension of your
display (known as "dual independent display" or "extended desktop" mode). This mode allows you to
use both screens independently and drag objects from one screen to the other, effectively doubling
the amount of viewable work space.
1. Connect the external monitor, TV, or projector to the computer.
2. Click Start→ Control Panel→ Display→ Settings.
NOTE: If you choose a resolution or colour palette that is higher than the display supports, the
settings adjust automatically to the closest supported values. For more information, see your
operating system documentation.
3. Click the monitor 2 icon→ Extend my Windows desktop onto this monitor→ Apply.
4. Change Screen resolution to the appropriate sizes for both displays and click Apply.
5. If prompted to restart the computer, click Apply the new colour setting without restarting→
OK.
6. If prompted, click OK to resize your desktop.
7. If prompted, click Yes to keep the settings.
8. Click OK to close the Display Properties window.
To disable dual independent display mode:
1. Click Settings in the Display Properties window.
2. Click the monitor 2 icon, uncheck the Extend my Windows desktop onto this monitor
option, and click Apply.