Matrox Mystique G200 Installation Guide download pdf (Page 23)

Matrox Graphics Card – Installation Guide 23

Cause Your computer may not have given an interrupt request (IRQ) to your Matrox

graphics card or may have given one used by another device in your computer. This

may be because your computer’s “Plug-and-Play” feature is turned off.

Windows 95/98 – To check the display adapter’s IRQ:

1 Right-click the My Computer icon on the Windows desktop background, then

click

Properties  Device Manager.

2 Click the plus sign to the left of the Display adapters. An “X” through an icon

means the hardware has been disabled. A circled exclamation point through the

icon means the hardware has a problem.

3 Double-click the name of your Matrox

display adapter to open a properties dialog

box. The type of problem is displayed in

the

General tab  Device status area.

Check also the

Resources tab  Resource

settings

list for an Interrupt Request.

Solution Change settings in your computer’s CMOS setup utility.

If your computer has the options of enabling Plug-and-Play detection, or assigning

an IRQ to a VGA adapter, make sure they’re enabled. If your computer doesn’t

have these options, you may be able to manually assign an IRQ to your graphics

card using the CMOS setup utility.

For more information on your computer’s CMOS setup utility, see your system

manual or contact your system manufacturer.

Solution Windows 95/98 (PCI graphics cards only): You may have to manually

assign an IRQ to your Matrox card with the irqset program in the

C:\Program Files\Matrox MGA PowerDesk folder. For instructions on how to

use irqset, click

 Programs  Matrox PowerDesk  Readme.

Cause Your computer’s other BIOS settings may be incorrect.

Solution Reset your computer BIOS settings to the factory defaults using your computer’s

built-in CMOS setup utility. The factory defaults are usually the “safest” settings.

Check your system manual for more information.

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Matrox Mystique G200 Installation Guide Page 23