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readme.txt
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1993-01-21
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Radius XGA-2 Windows 3.X Device Drivers Release 1.00
====================================================
This file contains installation instructions and other general information on
the Radius XGA-2 Windows 3.X device drivers.
Driver Installation Instructions
--------------------------------
This assumes Windows is already installed and that this is the first time you
are installing the driver. If you have already installed your driver once and
you wish to change the resolution of your display, please see the section
below entitled "Changing your XGA resolution".
Note: The Radius XGA-2 DOS install program should be run before installing the
Windows drivers to set up the proper DMQS information for your display.
To run the DOS install, type "A:\INSTALL" while at the DOS prompt.
1) Install Windows for VGA
2) Under the "File" menu of the program manager, choose "Run".
3) In the dialog box, type "A:\INSTALL".
4) A Dialog box will appear to select the desired resolution, when
you have selected the proper resolution press the "Install" button.
All necessary files are copied to the hard disk and the
SYSTEM.INI and WIN.INI files are updated.
4) Several files, along with drivers for the resolution modes will
be copied over to the WINDOWS\SYSTEM directory. You will then
be asked to "restart Windows". Windows will restart in the
resolution selected during the installation.
Changing Your XGA Resolution (Windows 3.1)
------------------------------------------
Once you have installed your XGA device driver, Windows Setup will allow
you to change resolutions from inside the Windows environment.
1) While running Windows, click on the Windows 3.1 SETUP Icon.
Now select Options, then Change System Settings.
2) Click on the down arrow next to the Display box and you will see
a list of installed drivers.
3) You are directed to select one of the following:
Radius XGA-2 v2.02 640*480 256 Color
Radius XGA-2 v2.02 640*480 65536 Color
Radius XGA-2 v2.02 800*600 256 Color
Radius XGA-2 v2.02 800*600 65536 Color
Radius XGA-2 v2.02 1024*768 Small Fonts
Radius XGA-2 v2.02 1024*768 Large Fonts
Radius XGA-2 v2.02 1024*768 XLarge Fonts
Radius XGA-2 v2.02 1280*960
Radius XGA-2 v2.02 1280*1024
Radius XGA-2 v2.02 1360*1024
Select the resolution you desire taking into account the capabilities
of your display.
It is recommended that the 1024x768 Extra Large Fonts option is only
used for displays of 15 inches or smaller.
4) Click the OK icon. Windows will tell you that a driver for this display
is already on the system. Select Current to keep your existing driver and
change the resolution.
5) Click Restart Windows to immediately change your resolution, or Continue
to change your resolution the next time you run Windows.
Changing Your XGA Resolution (Windows 3.0)
------------------------------------------
To Change screen resolutions under Windows 3.0, you must first change the
display driver to VGA using the Windows Setup Program. Then follow the
instructions starting at #2 under "Driver Installation Instructions" above.
Windows/Setup Problem Guide
---------------------------
1) While running Setup from within Windows, a General Protection Fault is
generated.
- Exit Windows and attempt to perform the same operation by running the
Setup program from the DOS command prompt in your Windows subdirectory.
2) After running Setup, your XGA resolution is incorrect.
- Check that your Display and XGA subsystem are capable of the resolution
you have selected.
- Check that your DMQS profile Display selection includes an
option for the resolution you have selected. See your DMQS
documentation for further details.
- Sometimes Setup will not update certain settings in the SYSTEM.INI
file correctly.
Using a text editor, examine the file SYSTEM.INI in your Windows
subdirectory. Look for the section headed by [XGA_DISPLAY] and
check the entry for your resolution in the list below.
Selection : Radius XGA-2 v2.02 640x480 256 Color
SYSTEM.INI entry :
XGA_Resolution=1
XGA_Resources=1
Selection : Radius XGA-2 v2.02 640x480 65536 Color
SYSTEM.INI entry :
XGA_Resolution=3
XGA_Resources=1
Selection : Radius XGA-2 v2.02 800x600 256 Color
SYSTEM.INI entry :
XGA_Resolution=4
XGA_Resources=1
Selection : Radius XGA-2 v2.02 800x600 65536 Color
SYSTEM.INI entry :
XGA_Resolution=5
XGA_Resources=1
Selection : Radius XGA-2 v2.02 1024x768 Small Fonts
SYSTEM.INI entry :
XGA_Resolution=2
XGA_Resources=1
Selection : Radius XGA-2 v2.02 1024x768 Large Fonts
SYSTEM.INI entry :
XGA_Resolution=2
XGA_Resources=2
Selection : Radius XGA-2 v2.02 1024x768 XLarge Fonts
SYSTEM.INI entry :
XGA_Resolution=2
XGA_Resources=2
Selection : Radius XGA-2 v2.02 1280x960
SYSTEM.INI entry :
XGA_Resolution=6
XGA_Resources=2
Selection : Radius XGA-2 v2.02 1280x1024
SYSTEM.INI entry :
XGA_Resolution=8
XGA_Resources=2
Selection : Radius XGA-2 v2.02 1360x1024
SYSTEM.INI entry :
XGA_Resolution=7
XGA_Resources=2
3) When running Windows, garbage appears on the screen or Windows locks up
the system frequently.
Some PC Compatibles are incapable of supporting busmastering properly,
which is the default for the XGA Windows drivers. To disable busmastering
do the following: Using a text editor, examine the file SYSTEM.INI in
your Windows subdirectory. Look for the section headed by [XGA_DISPLAY] and
change the XGA_NoBusMaster=0 variable to XGA_NoBusMaster=1.
4) When running Windows, most of the desktop is garbage but the icons are
legible.
This is caused by computers which shadow the video ROM. Because the
XGA Coprocessor registers reside at the end of video ROM,the XGA video
ROM should not be shadowed. Look in the users manual for your computer
to find out how to disable video ROM shadowing. It can usually be disabled
through a setup program which can be entered at bootup by hitting a key
like "F2". The XGA video ROM resides at C0000h-C8000h by default.
5) Unable use certain resolutions.
The SetDMQS program in your RADXGA directory must be used to set the
proper DMQS definitions for your display. If you do not have a RADXGA
directory, run the install program on the Radius XGA-2 driver disk from
the DOS prompt.
6) When changing from the Extra Large Fonts Driver to a Large Fonts Driver,
the fonts stay extra large.
The Setup program in Windows does not properly change from Extra Large
to Large. To get the proper fonts, use the setup program in the Windows
directory while at the DOS prompt.
Video Device Conflict errors with EMM386 or other Expanded Memory Managers
--------------------------------------------------------------------------
This problem occurs in particular on the IBM PS/2 Model 90, with
integral XGA. It has become more prevalent since DOS 5.0.
Instructions for EMM386 configuration to prevent EMM386 from conflicting
with XGA are given here.
This problem is caused by the EMM386.SYS or EMM386.EXE incorrectly
attempting to appropriate the XGA adapters memory mapped registers
region for its expanded memory or upper memory management.
When the XGA driver attempts to claim access rights to its own memory
mapped registers, Windows detects that this area of system memory has
already been claimed by EMM386, and the result is a Video Device
Conflict error.
The EMM386 X= option can be used to tell EMM386 what areas to avoid.
Proceed as follows :
1) Run the System Configuration Program and select Display Memory Map.
On some systems this is done by pressing Ctl-Alt-Ins when the text
cursor moves to the right side of the display during a re-boot.
Alternatively, the System Configuration Program is run from the
System Reference Diskette.
To display the memory map, select Set Configuration, and then select
Display Memory Map. On some systems the memory map will specifically refer
to XGA or XGA-2. On others, such as the PS/2 Model 90, the allocation will
be described as "Built in Features".
Identify the area of System Memory reserved for the XGA Video Adapter,
(for instance 8K at C600).
2) Modify the EMM386 invocation in CONFIG.SYS, and add the following
option:
X=C600-C7FF (for example)
So that the line now reads (for example)
DEVICE=EMM386.EXE NOEMS X=C600-C7FF
Replace C600-C7FF by the actual location figures for your XGA Video
Adapter, as found in Step 1.
If you have a memory manager other than EMM386, proceed as above but
consult your memory manager documentation for details of how to
exclude the required memory area.
Problems beyond our control
---------------------------
1) Text truncated in (menu) text boxes
With the Extra Large system fonts in particular, but sometimes with the other
system fonts, applications have not built sufficient tolerance to handle
legitimate variations in system font size, and as a result some text
boxes contain truncated text. This is an application problem, not a
driver problem, as the application is responsible for querying the size
of the text, and generating a sufficiently large box to surround it.
Applications that have failed to build in a sufficient tolerance of device
driver system font size variations will exhibit this problem. However in
many cases, selection of a smaller driver system font may be a solution.
See "Device Driver Installation Choices" for a description of how the
various selections affect driver system font size.
2) CodeView under Windows corrupts the screen, eventually fails.
CodeView does not run correctly with the XGA Windows driver.
Points to Note
--------------
1) The XGA adapter card can not be used as a replacement for the 8514/A when
running CVW (CodeView for Windows) on a PS/2.
2) Switching to a full screen DOS session while printing from a Windows
application can cause information to be omitted from the printout. To
avoid this problem, wait for the dialog box informing you that the file
is being sent to the printer to be removed from the screen, before
switching to the DOS session. Alternatively, run your DOS session in a
window and the problem will not occur.
3) Screen print using the 'Print Screen' key is not possible.
4) A few applications can give different colors when run on the XGA as
compared to the VGA. This results from different palette formats.
5) A blank screen is usually the result of trying to use the display
adapter with no display attached. Ensure that the monitor is
plugged into the XGA Adapter.
The Diskette Files
------------------
The WIN directory contains the following files:
READ.ME - This READ.ME information file
OEMSETUP.INF - Windows 3.1 Installation Control file
RADIUS30.INF - Radius 3.0 Installation Control file
RADIUS31.INF - Radius 3.1 Installation Control file
XGA202.DRV - XGA Windows 3.X Display Driver
XGALO20.DRV - XGA Windows 3.0 display driver (640 x 480)
XGA.3GR - Windows 3.1 386 Enhanced Mode Grabber
8514.GR3 - Windows 3.0 386 Enhanced Mode Grabber
XGAVD202.386 - XGA Windows 3.X 386 Enhanced Mode VDD
VGACOLOR.GR2 - Windows 3.X Standard Mode Grabber
WIN.CNF - Files sometimes required by setup and used to build WIN.COM.
8515SYS.FON 8515FIX.FON 8515OEM.FON - IBM 8515 'System' Fonts
8514SYS.FON 8514FIX.FON 8514OEM.FON - 1024 x 768 'System' Fonts
COURF.FON SERIFF.FON SSERIFF.FON SYMBOLF.FON - 1024 x 768 'Screen' Fonts
COURE.FON SERIFE.FON SSERIFE.FON SYMBOLE.FON - 640 x 480 'Screen' Fonts
MODERN.FON ROMAN.FON SCRIPT.FON - 'Screen' Fonts
CGA40WOA.FON CGA80WOA.FON CGA40850.FON CGA80850.FON - Grabber Fonts
EGA40WOA.FON EGA80WOA.FON EGA40850.FON EGA80850.FON - Grabber Fonts