Video And Display Problems; If The Display Is Blank; If The Display Is Difficult To Read - Dell Latitude D630 User Manual

If the touch pad operates correctly, the mouse may be defective.
H E C K T H E S YS T E M S E T U P P R O G R A M S E T T I N G S
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device for the pointing device option. (The computer automatically recognizes a USB mouse without
making any setting adjustments.)
E S T T H E M O U S E C O N T R O L L E R
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operation of the touch pad or mouse buttons, run the Mouse test in the Pointing Devices test group in
the Dell Diagnostics (see "Dell Diagnostics" on page 75).
E I N S T A L L T H E T O U C H P A D D R I V E R
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Video and Display Problems

Fill out the Diagnostics Checklist (see "Diagnostics Checklist" on page 139) as you complete these
checks.
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the Product
Information Guide.

If the display is blank

NOTE:
If you are using a program that requires a higher resolution than your computer supports, it is
recommended that you attach an external monitor to your computer.
H E C K T H E B A T T E R Y
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depleted. Connect the computer to an electrical outlet using the AC adapter, and turn on the computer.
E S T T H E E L E C T R I C A L O U T L E T
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device, such as a lamp.
H E C K T H E A D A P T E R
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ensure that the light is on.
O N N E C T T H E C O M P U T E R D I R E C T L Y T O A N E L E C T R I C A L O U T L E T
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strips, and the extension cable to verify that the computer turns on.
D J U S T T H E P O W E R P R O P E R T I E S
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Center (click Start→ Help and Support).
W I T C H T H E V I D E O I M A G E
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switch the video image to the display.

If the display is difficult to read

D J U S T T H E B R I G H T N E S S
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O V E T H E E X T E R N A L S U B W O O F E R A W A Y F R O M T H E C O M P U T E R O R M O N I T O R
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system includes a subwoofer, ensure that the subwoofer is at least 60 cm (2 ft) away from the computer
or external monitor.
L I M I N A T E P O S S I B L E I N T E R F E R E N C E
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appliances.
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To test the mouse controller (which affects pointer movement) and the
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See "Reinstalling Drivers and Utilities" on page 102.
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If you are using a battery to power your computer, the battery charge may be
Ensure that the electrical outlet is working by testing it with another
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Check the AC adapter cable connections. If the AC adapter has a light,
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Search for the keyword standby in the Windows Help and Support
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If your computer is attached to an external monitor, press <Fn><F8> to
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Press <Fn> and the up- or down-arrow key
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Turn off nearby fans, fluorescent lights, halogen lamps, or other
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Verify that the system setup program lists the correct
Bypass power protection devices, power
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If your external speaker
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Troubleshooting
95