Video And Display Problems; If The Display Is Blank - Dell Latitude D430 User Manual

H E C K T H E M O U S E C A B L E
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firmly reconnect the cable.
If you are using a mouse extension cable, disconnect it and connect the mouse directly to the computer.
O V E R I F Y T H A T T H E P R O B L E M I S W I T H T H E M O U S E
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1 Shut down the computer.
2 Disconnect the mouse.
3 Turn on the computer.
4 At the Windows desktop, use the touch pad to move the cursor around, select an icon, and open it.
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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for the pointing device option. (The computer automatically recognizes a USB mouse without making any setting
adjustments.) For more information on using the system setup program, see "System Setup Program" on page 89.
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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 69).
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Video and Display Problems

Fill out the Diagnostics Checklist (see "Diagnostics Checklist" on page 154) 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.
— If you are using a battery to power your computer, the battery charge may be depleted.
H E C K T H E B A T T E R Y
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Connect the computer to an electrical outlet using the AC adapter, and turn on the computer.
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as a lamp.
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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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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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→
Click Start or 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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the video image to the display.
— Shut down the computer. Disconnect the mouse cable, check it for damage, and
— Verify that the system setup program lists the correct device
— To test the mouse controller (which affects pointer movement) and the
— See "Reinstalling Drivers and Utilities" on page 94.
— Ensure that the electrical outlet is working by testing it with another device, such
— Check the AC adapter cable connections. If the AC adapter has a light, ensure that
— 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 switch
C H E C K T H E T O U C H P A D
,
— Bypass power protection devices, power strips,
—
Troubleshooting
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