User guide

66 Matrox Marvel – User Guide
Display information
Graphics
Notes
Matrox graphics cards that can support a secondary display have the Matrox
DualHead
feature.
Windows 98 –
In
DualHead Multi-Display
mode (see page 22), the graphics memory is
divided equally between the main and secondary display. For example, if you have a
16 MB graphics card, the main and secondary displays each have 8 MB available to
them. As a result, maximum display capabilities may be affected.
In
DualHead Multi-Display
mode (see page 22), the secondary display only supports a
16- or 32-bit color palette.
3D acceleration is only available with a 16- or 32-bit color palette.
The display resolutions available depend on your Matrox graphics card, display driver
and software monitor settings. Different software monitor settings have different
resolutions available to them. With your software monitor settings, some of the
resolutions listed in this section may not be available,
or
resolutions not listed in this
section may be available. For more information on software monitor settings with
Windows 95/98, see “Monitor setup”, page 21.
Many Plug-and-Play monitors don’t automatically report if theyre capable of
1152 × 864, or 1600 × 1200 and higher display resolutions. To use these resolutions, or
higher refresh rates than those reported by the monitor, you can use the Matrox monitor
selection method. To use Matrox monitor settings with Windows 95/98, see “Monitor
setup”, page 21.
The maximum refresh rates listed in this section have been rounded and are based on a
monitor with a maximum horizontal refresh rate of 130 kHz. Depending on your
monitor, refresh rate capabilities may vary. For information on the capabilities of your
monitor, see your monitor documentation.
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