Dell PP29L If the display is difficult to read, If only part of the display is readable

If the display is difficult to read

A D J U S T T H E B R I G H T N E S S — Press <Fn> and the up- or down-arrow key.

M 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 — If

your external speaker system includes a subwoofer, ensure that the subwoofer is at least 60 cm (2 ft) away from the computer or external monitor.

E 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 — Turn off nearby fans, fluorescent lights, halogen lamps, or other appliances.

R O T A T E T H E C O M P U T E R T O F A C E A D I F F E R E N T D I R E C T I O N — Eliminate sunlight

glare, which can cause poor picture quality.

A D J U S T T H E W I N D O W S D I S P L A Y S E T T I N G S —

1Click Start→Control Panel→Display.

2Click the area you want to change or click the Display icon.

3Try different settings for Color quality and Screen resolution.

R U N T H E VI D E O D I A G N O S T I C S T E S T S — If no error message appears and you still have a display problem, but the display is not completely blank, run the Video device group in the "Dell Diagnostics" on page 75, then contact Dell (see "Contacting Dell" on page 132).

S E E "E R R O R M E S S A G E S " — If an error message appears, see "Error Messages" on page 82.

If only part of the display is readable

C O N N E C T A N E X T E R N A L M O N I T O R —

1Shut down your computer and connect an external monitor to the computer.

2Turn on the computer and the monitor, and then adjust the monitor brightness and contrast controls.

If the external monitor works, the computer display or video controller may be defective. Contact Dell (see "Contacting Dell" on page 132).

Troubleshooting

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