IBM Aptiva 2198, Reference Manual

Page: 134 / 186

Monitor problems Action
Screen flickers. Set the monitor for the highest, noninterlaced refresh
rate supported by your monitor and the video controller
in your computer.
Attention: Using a resolution or refresh rate that is not
supported by your monitor might damage it.
You can reset the refresh rate through your operating
system, using the instructions provided in the README
files. See your operating-system documentation for
further information on monitor settings.
If this does not correct the problem, have the monitor
and computer serviced.
The monitor works when
you turn on the system,
but goes blank when you
start some application
programs. Verify that:
1. The monitor signal cable is securely connected to
the monitor and the monitor connector on the
graphics adapter. For the location of the monitor
connector on the graphics adapter installed in your
computer, see Chapter 8, “Installing external
options” on page 87.
2. The necessary device drivers for the application
programs are installed.
If you cannot correct the problem, have the computer
serviced.
The monitor works when
you turn on the system,
but goes blank after
some period of computer
inactivity. The computer is probably set for energy savings with
the power-management feature. If the
power-management feature is enabled, disabling it or
changing the settings might solve the problem (see
“Using power-management features” on page 18).
If you cannot correct the problem, have the computer
serviced.
Blank screen. Verify that:
1. The computer power cord is plugged into the
computer and a working electrical outlet.
2. The monitor is turned on and the Brightness and
Contrast controls are adjusted correctly.
3. The monitor signal cable is securely connected to
the monitor and the monitor connector on the
system board. To find the monitor connector on
the system board, see Chapter 8, “Installing
external options” on page 87.
If you cannot correct the problem, have the computer
serviced.
Only the cursor appears. Have the computer serviced.
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Aptiva Reference Guide