Matrox Electronic Systems LE G450 User Manual
Page 16
16
Matrox Graphics Card – User Guide
3
Solution
Make sure the connection to the back of the monitor is firmly in place.
If your monitor uses BNC input, make
sure the Red (
R
), Green (
G
), Blue (
B
),
Horizontal Sync (
HSYNC
– white or gray
wire), and Vertical Sync (
VSYNC
– black
wire) connections are firmly in place and
plugged into the correct input.
3
Cause
If your monitor uses BNC input, one or more connection settings may be incorrect.
1
Solution
Set each of your monitor RGB input and sync switches (if available) to 75 ohms, with the
sync set to “external”. These controls are usually switches on the back of your monitor.
4
Cause
If display problems occur after the startup screen of your operating system, your software
monitor settings may be incorrect.
1
Solution
Make sure correct software monitor settings are selected.
If your primary display is still usable,
. Otherwise, see the next
troubleshooting item.
Problem
After the startup screen, or after display settings are changed,
the screen image is garbled or unusable
(blank screen, rolling or overlapping screen images)
1
Cause
The Matrox display driver may be trying to use settings your monitor doesn’t support. This
can happen if a monitor was never selected in the software and the display resolution was
changed to one your monitor doesn’t support, or if the monitor connected to your computer
was changed without changing it in the software.
1
Solution
Windows 98/Me/2000/XP –
1
If your primary display is unusable, restart your computer in safe mode (
).
2
Right-click the Windows desktop background, then click
Properties
#
Settings
.
3
Move the
Screen area
(Windows 98/Me/2000) or
Screen Resolution
(Windows XP)
slider down to its lowest setting, then click
OK
.
4
Restart your computer normally.
Bayonet Nut Connect (BNC)
WARNING:
If incorrect software monitor settings are applied, some monitors can be
permanently damaged. For more information, see your monitor manual.