Matrox RAD LPX Series – User Guide
19
Extra troubleshooting
The following are extra troubleshooting items related to graphics hardware.
Problem
Windows XP ‘Screen resolution’ slider is disabled
1
Cause
While using
Legacy Gray
, your Matrox product supports only 8-bit display modes. With
these display modes, Windows XP disables the
Screen resolution
slider.
1
Solution
To change the screen resolution of your displays:
1
Right-click your Windows desktop background, then click
Properties
Æ
Settings
.
2
If you’re using a multi-display desktop, select a display.
3
Click
Advanced
Æ
Adapter
Æ
List all modes
, select a resolution and refresh rate for your
display, then click
OK
Æ
OK
Æ
OK
.
2
Solution
If possible, use
ExtendiGray
. For more information, see the Matrox PowerDesk help.
Problem
Icons and other standard Windows graphics appear incorrectly
1
Cause
You may be using
Legacy Gray
with a
Fixed linear gray palette
.
1
Solution
If possible, use
Legacy Gray
with a
Fixed non-linear gray palette
or use
ExtendiGray
. For
more information, see the Matrox PowerDesk help.
2
Cause
Windows XP
– While using
Legacy Gray
your Matrox product supports only 8-bit display
modes. With these display modes, Windows uses only standard Windows colors (16 basic
colors plus 4 reserved colors) for icons and other standard Windows graphics.
1
Solution
Don’t use the Windows XP themes. To change your Windows appearance, right-click your
Windows desktop background, click
Properties
Æ
Themes
, select
Windows Classic
under
Theme
, then click
OK
.
Problem
Can’t select one or more display resolutions supported by your
monitor
1
Cause
Windows 7/Vista/XP –
Windows may be disabling display resolutions that it can’t detect as
supported by your monitor.
1
Solution
Install the latest monitor software from your monitor manufacturer.
2
Solution
Change Windows monitor settings:
