Troubleshooting guide

Table 2-25. Solving Screen Problems
===========================================================================
Problem Probable Cause Solution(s)
===========================================================================
Characters are dim. The brightness or Adjust the control(s) on
contrast (if applicable) the right side of the
control is not set computer display.
properly.
Computer screen is in Tilt the display or move
direct light. computer.
---------------------------------------------------------------------------
Screen is blank. You initiated QuickLock/ Enter the password to
QuickBlank. exit QuickLock/
QuickBlank.
You may have another Press any key and/or
screen blanking utility enter your password.
installed.
Screen save was Press any key or click
initiated after the the mouse.
Power Management timeout
period of inactivity
If an STN screen is Use the control on the
used, brightness/ display to adjust the
contrast needs brightness/contrast.
adjusting.
Standby was initiated. Press the standby button
to exit Standby.
---------------------------------------------------------------------------
Computer screen is Display was switched to Press the Fn+F4 hotkey to
blank and the screen the external monitor. display information on
on an external the computer screen.
monitor displays
information.
---------------------------------------------------------------------------
Garbled characters You are using 800 x 600 Restart your computer. If
on internal display or higher resolution on simultaneous display is
or flashing internal external display and desired, use 640 x 480
display when have toggled back to resolution.
connected to internal display, which
external monitor. only supports 640 x 480
resolution.
---------------------------------------------------------------------------
The image on the You are using an This is typical; no
external monitor external monitor and action is required.
does not fill the simultaneously
screen. displaying an image on
the computer display.
---------------------------------------------------------------------------
Small red, green, or Small spots, called This is typical; no
blue spots appear on on-pixels, often appear action is required.
the computer TFT on TFT screens. Compaq
display. limits the number of
these on-pixels to
0.003 percent of the
approximately 1 million
transistors that are on
a 10.4-inch display.
===========================================================================