Troubleshooting 17-21
Writer: Cheryl Love Saved by: Cheryl Love Saved date: 08/12/97 10:42 AM
Part Number: 247738-002 File name: Ch17.doc
Solving Screen Problems
This section lists some common causes and solutions for computer
display and external monitor problems
You can perform a monitor self-test on an external VGA color or
monochrome monitor by disconnecting the monitor from the
computer. To do so, complete the following steps:
1. Switch to the internal display.
2. Turn off the external monitor.
3. Disconnect the external monitor signal cable from the
computer.
4. Turn on the monitor and allow it to warm up for one minute.
The screen should be white. A narrow black border may
also appear on the left and right sides of the display. Either of
these displays indicates that the monitor is working properly.
Problem Possible Cause Solution
Characters are dim. Brightness is not
properly set.
Press
Fn+F10,
then press
the right arrow key to
increase brightness.
Computer screen is in
direct light.
Tilt the display or move
the computer.
The Brightness setting
may be less than you
prefer.
Verify or change setting
for Brightness on the
Battery Conservation
Settings tab in Power
Properties (see
Chapter 4.)
Screen is blank. Screen save was
initiated after the
screen timeout (period
of inactivity).
Press any key or click
the mouse.
You initiated
QuickLock/
QuickBlank.
Enter your power-on
password to exit
QuickLock/QuickBlank.
NOTE:
If num lock is on,
hold down the Fn key to
type a non-numeric
password; press
Fn+Shift
for uppercase.
Brightness needs
adjusting.
Press
Fn+F10
then the
right arrow key to
increase brightness.
Continued
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