Документ взят из кэша поисковой машины. Адрес оригинального документа : http://crydee.sai.msu.ru/ftproot/pub/comp/hardware/matrox/doc/mgaq&a.doc Дата изменения: Thu Oct 5 03:33:00 1995 Дата индексирования: Mon Dec 24 10:54:19 2007 Кодировка: Поисковые слова: summer triangle

Hardware

Q My system hangs trying to run the MGA, but runs if I remove my
network adapter.
A Your network adapter's interrupt or I/O address should be changed.
Interrupts should be set to a value below 10. If you are using an NE-2000
compatible adapter, it should be set to a value between 2 and 5. I/O
addresses should avoid values in the range of 0x300 to 0x310.


Q My MGA PCI board is not recognized by the system when I try to use
one of the MGA-supplied drivers such as Windows.
A There are 2 common problems. The first is that during boot-up, the
system BIOS did not complete the configuration of the MGA correctly and is
not been enabled onto the bus. This can be detected by our MGABASE.EXE
utility which will indicate the board is installed at an address of
00000000. Correct this by using MGABASE.EXE to give the MGA card a valid
address greater than 1 Mbyte and not conflict with physical memory or
devices. A typical address would be A0000000. The MGABASE.EXE utility can
be found on our BBS or in our forum on Compuserve. For Millennium, use the
PCIMAP.EXE utility which is supplied with our drivers.
The second problem is that the system BIOS has assigned a base memory
address to the MGA which is used by another device or is reserved for use
by the motherboard chipset. Again, MGABASE.EXE (or PCIMAP.EXE) can be used
to solve this problem. It will tell you what the current address is
(causing the conflict) and allow you to change it to another address. Try
changing addresses by altering just the first digit in the base address. A
real fix to this problem is to get a new system BIOS from the system or
BIOS manufacturer.

Windows 3.1


Q Occasionally when I start a Windows program or try to connect to a
drive from Windows for Workgroups, I get a message "Low on Memory" which
prevents me from starting the application or connecting to the drive.
A This is indicative of a lack of DOS memory (below 1 megabyte) and is
usually caused by having many drivers and/or applications running at once.
Since the MGA's drivers provide many more features and performance
enhancements, they also occupy more DOS memory than standard VGA drivers.
There is 3 possible solutions to this problem. The first is try and
minimize the number of applications you open at once. The second id to
reduce the number of drivers and utilities that are loaded when Windows is
started. The third is to make use of third party utilities that free up DOS
memory by fragmenting it. One such utility is called MoreMem which is
available on Compuserve.

Q When I run the 24-bit or Modeswitch drivers for Windows, one or more
of my Program Manager's groups contains black icons.
A Windows allocates a fixed amount of memory for storing resource
information about icons regardless of how many icons are to be stored for
each group or how many colors are being displayed. When operating in 24 bit
color or with Modeswitch, the icons will require 3-4 times the amount of
memory compared to when the display operates at 256 colors (8 bit color).
If a group has a large number of icons, then insufficient resource memory
will be available to store the icon information. The solution is to break
the groups into smaller groups with a dozen or less icons.

Q During the installation of the version 2.xx MGA Windows drivers, I
select a monitor from the monitor selection dialog box and my screen goes
black. (Does not apply to Millennium)
A There are 2 possible solutions to this problem. The first is to
remove the SETVGA.EXE utility, which was installed with the MGA drivers,
from your AUTOEXEC.BAT file. The second is to verify if you have a memory
manager such as EMM386 installed. If so, its installation should be
modified to exclude the memory range C000-C7FF. This is where the VGA BIOS
resides.

Windows NT

Q How do I configure my system to run dual-screen Windows NT with MGA
boards.
A To do this, you must be using two MGA boards and Windows NT 3.5 or
higher. The boards do not have to be the same models unless you are using
Millenniums. Once the two boards are installed in the system, boot Windows
NT 3.5 and run the Display applet. Windows NT will automatically detect the
2 boards. From the resolution list double-up resolutions such as 2560 x
1024 will be available. Simply select one of these resolutions and restart
NT. Both screens must operate at the same resolution and pixel depth.

OS/2

Q Running a full-screen DOS or Windows session in OS/2 hangs.
A The MGA needs to have its RAMBIOS.SYS utility loaded for the session
that is hanging. This is accomplished through the OS/2 settings of that
session.

Q While running the System Setup for OS/2 Warp, I accidentally changed
the resolution to one that is not supported by my monitor (i.e. 1600 x
1200), and I cannot change it back since I cannot see anything on the
monitor.
A Reboot the system and press CTL-F1 during the reboot, then press V
for VGA. This will restart the system in VGA mode, allowing video to appear
on your monitor. Then re-install the MGA drivers but do not restart OS/2
after the installation is completed. Instead, go to the System Setup and
choose a resolution that your monitor can handle. Then complete the system
setup as you would normally.

Q My current AutoCAD drivers do not indicate support for Release 13.
A A new version of our Dynaview driver has been released, version1.7,
which adds complete support for Release 13 for DOS. Release 13 for Windows
works with the MGA's Powerdesk Windows driver. An update to our Dynaview
for Windows driver that supports display lists for Release 13 for Windows
is scheduled for release in May, 1995.

Q How can I use 3D Studio version 3.0 or 4.0 with my MGA board.
A Drivers for the MGA are supplied with 3D Studio. Select them during
the install of 3D Studio. For earlier copies of version 3.0, you may not
have support in the box for MGA. Contact Autodesk for an update of the 3DS
inline driver which contains support for MGA.

Q After installing your Microstation driver, Microstation will not
start.
A If you installed version 1.64 or less of the driver, your system may
not have enough DOS memory to run the MGA configuration program while
running the Microstation configuration program. A new version of our
Microstation driver, version 2.0 solves this problem while adding new
features such as support for back and store, and 3D acceleration.

Q When I run the MGA DOS setup program, my system locks up.
A The DOS memory manager is causing a conflict. This can be
circumvented temporarily by rebooting the system and pressing F5 when the
"Starting MS-DOS" message appears. This will bypass the CONFIG.SYS and
AUTOEXEC.BAT allowing the DOS setup program to work. Once the setup is
finished, reboot the system.