If The Display Is Difficult To Read; If Only Part Of The Display Is Readable - Dell Latitude ATG D620 User Manual

Troubleshooting: Dell Latitude ATG D620 User's Guide
Test the electrical outlet —
device, such as a lamp.
Check the AC adapter —
ensure that the light is on.
Connect the computer directly to an electrical outlet —
strips, and the extension cable to verify that the computer turns on.
Adjust the power properties —
Center (see Windows Help and Support
Switch the video image —
switch the video image to the display.

If the display is difficult to read

Adjust the brightness —
Move the external subwoofer away from the computer or monitor —
system includes a subwoofer, ensure that the subwoofer is at least 60 cm (2 ft) away from the
computer or external monitor.
Eliminate possible interference —
appliances.
Rotate the computer to face a different direction —
poor picture quality.
Adjust the Windows display settings —
1. Click the Start button and click Settings→ Control Panel.
2. Click Appearance and Themes.
3. Click the area you want to change or click the Display icon.
4. Try different settings for Color quality and Screen resolution.
Run the Video diagnostics tests —
problem, but the display is not completely blank, run the Video device group in the Dell Diagnostics.
Then contact Dell (see
See "Error Messages" —

If only part of the display is readable

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Ensure that the electrical outlet is working by testing it with another
Check the AC adapter cable connections. If the AC adapter has a light,
Search for the keyword standby in the Windows Help and Support
Center).
If your computer is attached to an external monitor, press <Fn><F8> to
Press <Fn> and the up- or down-arrow key
Turn off nearby fans, fluorescent lights, halogen lamps, or other
If no error message appears and you still have a display
Contacting Dell).
If an error message appears, see
Bypass power protection devices, power
If your external speaker
Eliminate sunlight glare, which can cause
Error Messages.