Dell PP23LA - Video and Display Problems; If the Display Is Blank; If the Display Is Difficult to Read

78
Solving Problems
Video and Display Problems
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.
C
HECK THE BATTERY
—
If you are using a battery to power your computer, the battery charge may be
depleted. Connect the computer to an electrical outlet using the AC adapter, and turn on the computer.
T
EST THE ELECTRICAL OUTLET
—
Ensure that the electrical outlet is working by testing it with another
device, such as a lamp.
C
HECK THE
AC
ADAPTER
—
Check the AC adapter cable connections. If the AC adapter has a light, ensure
that the light is on.
C
ONNECT THE COMPUTER DIRECTLY TO AN ELECTRICAL OUTLET
—
Bypass power protection devices, power
strips, and the extension cable to verify that the computer turns on.
A
DJUST THE POWER PROPERTIES
—
Search for the keyword standby in the Windows Help and Support
Center. To access the Help and Support Center, see "Windows Help and Support Center" on page 13.
S
WITCH THE VIDEO IMAGE
—
If your computer is attached to an external monitor, press <Fn><F8> to
switch the video image to the display.
If the display is difficult to read
A
DJUST THE BRIGHTNESS
—
Press <Fn> and the up- or down-arrow key.
M
OVE THE EXTERNAL SUBWOOFER AWAY FROM THE COMPUTER OR MONITOR
—
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
LIMINATE POSSIBLE INTERFERENCE
—
Turn off nearby fans, fluorescent lights, halogen lamps, or other
appliances.
R
OTATE THE COMPUTER TO FACE A DIFFERENT DIRECTION
—
Eliminate sunlight glare, which can cause poor
picture quality.
A
DJUST THE
W
INDOWS DISPLAY SETTINGS
—
1 Click the Start button and then click Control Panel .
2 Click Appearance and Themes .
3 Click the area you want to change or click the Display icon.
Try different settings for Color quality and Screen resolution.
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