Matrox DualHead2Go User Manual page 9

2
Cause
Your USB cable may not be connected to a powered USB port.
3
Solution
Make sure your USB cable is connected to a powered USB port. If the USB port you're
currently using isn't powered, try using a different USB port.
Note: The powered USB port must be able to provide up to 2.5 W (5 VDC, up to 500 mA)
of power. For more information on powered USB ports, see your system manual.
Problem Power indicator light is red
1
Cause
Your Matrox product may not support the selected display mode.
1
Solution
Make sure your Matrox product supports the selected display mode. For more information,
see "Supported display modes", page
2
Cause
There may be unsupported graphics hardware in your computer.
1
Solution
Make sure your Matrox product supports your graphics hardware by running the Matrox
System Compatibility Tool (www.matrox.com/graphics/dualhead2go/support).
2
Solution
If graphics hardware is built into your computer motherboard, it may not be enabled. Check
your system manual for instructions on how to enable your computer's built-in graphics
hardware.
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
An unsupported display mode may have been selected.
1
Solution
If one of your displays is usable, use Matrox PowerDesk to change your display mode. For
more information, see Matrox PowerDesk help.
15.
Matrox DualHead2Go – User Guide 9