IBM 6648 - NetVista A40 - 128 MB RAM User Manual page 100

Monitor problems
The monitor works when
you turn on the system, but
goes blank when you start
some application programs.
The monitor works when
you turn on the system, but
goes blank after some
period of computer
inactivity.
Blank screen.
Only the cursor appears.
Wrong characters appear on
the screen.
86
User Guide
Action
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
"Connecting computer cables" on page 7.
2. The necessary device drivers for the application
programs are installed.
If you cannot correct the problem, have the computer
serviced.
The computer is probably set for energy savings with the
Advanced Power Management (APM) feature. If the
APM feature is enabled, disabling APM or changing
APM settings might solve the problem (see
"Power-management features" on page 39).
If you cannot correct the problem, have the computer
serviced.
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 "Connecting computer cables" on page 7. If
your computer comes with an AGP adapter, verify
that the monitor is connected to the monitor
connector on the AGP adapter.
If you cannot correct the problem, have the computer
serviced.
Have the computer serviced.
Have the computer serviced.