Matrox TripleHead2Go – User Guide 17
Problem Certain display resolutions are unavailable
1
Cause
The image quality of your displays may need to be adjusted.
1
Solution
Make sure your Matrox product supports your graphics hardware by running the
Matrox
System Compatibility Tool
(www.matrox.com/graphics/triplehead2go/support).
2
Cause
Certain display resolutions may be listed even though they may not be supported by your
Matrox product.
1
Solution
Make sure your Matrox product supports the selected display resolution. For more
information, see “Supported display modes”, page 21.
2
Solution
Make sure your Matrox software is installed. For more information, see “Software setup”,
page 13.
3
Cause
TripleHead2Go Digital Edition only
– While using the DVI input connector on your Matrox
product, the highest display resolutions are available only with graphics hardware that
supports dual-link DVI.
1
Solution
If your graphics hardware has an HD-15 connector, use this connector instead. For more
information, see “Connection setup – TripleHead2Go Digital Edition”, page 7.
2
Solution
If your graphics hardware has only a DVI connector, use a DVI-to-HD15 adapter to connect
your graphics hardware to the HD-15 input connector on your Matrox product. To purchase
a Matrox DVI-to-HD15 adapter for your product, see the Matrox online store
(http://shopmatrox.com).
4
Cause
Windows identifies the highest display mode and discards all modes with a higher vertical or
horizontal resolution. In Windows 2000/XP, the highest display mode is the one with the
highest horizontal resolution. In Windows Vista, the highest display mode is the one with the
highest vertical resolution.
1
Solution
Disable Windows mode pruning to view all available display modes:
1
Windows 2000/XP
– Right-click your Windows desktop background, then click
Properties
Æ
Settings
.
Windows Vista
– Right-click your Windows desktop background, then click
Personalize
Æ
Display Settings
.
2
Select the display for your GXM hardware, then click
Advanced
Æ
Monitor
. Make sure
Hide modes that this monitor cannot display
is clear.
3
Click
OK
Æ
OK
.
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