TECHNICAL SUPPORT MANUAL

SUNSHOW IMAGE TOOLKIT and
SUNSHOW PROFESSIONAL IMAGE TOOLKIT
VIDEO SUPPORT, October 29, 1993 - December 30, 1993

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** WARNING ** WARNING ** WARNING ** WARNING ** WARNING ** WARNING  

IBM and Non-IBM 8514/A Adapters are not currently supported in
286DOS EXTENDED MODE.  

The IBM XGA is not currently supported in 286DOS EXTENDED MODE

The VESA specification is not currently supported in 286DOS
EXTENDED MODE.

The CORNERSTONE Page-Mode video card & monitor is not currently
supported in 286DOS EXTENDED MODE

SunShow Real Mode drivers support the above video cards in
real mode only.
***********************************************************************

Video Cards Supported in:
	1. MS-DOS REAL MODE:
	2. 286 DOS Extenders (ExoSpace, Blinker 3.0, WarpLink WP32, etc.)
	3. 386 DOS Extenders (DPMI, VCPI,XMS, INT15h compatible)

NOTE: Special video situations may only be supported in the
SunShow Professional package, as noted below).  In all cases,
Sun Country recommends support of recognized standards (video
modes, manufacturers, file formats, etc.).  Programmers run
extra risks when they intend non-standard formats, etc.

1. No SunShow External Drivers Required for the following
IBM-compatible video modes.  All SunShow Image Toolkit and
Professional Toolkit routines operate correctly on
IBM-compatible standard PC video cards.  Older versions of
SunShow Clipper Libraries support REAL MODE operation.  SunShow
Professional Clipper Libraries, v.3.51 or newer are BiModal,
supporting REAL MODE and 286/386 Protected Modes in the same
Library when used with the BiModal SunShow Video Drivers.

*IBM Compatible CGA (support all graphic modes, but mode 6
recommended for graphics) *IBM Compatible EGA (Note: Very OLD
IBM EGA w/ 64K (128K is normal) video memory have known
limitations -  Cannot support 640x350x4 NOTE: 320x200x16 and
640x200x16 ARE supported on these obsolete EGA video cards by
SunShow)

    NOTE: Hardware limitations on certain EGA cards: PALETTE
cannot be grabbed on all true EGA cards (not cards having EGA
emulation modes), therefore TSR screen capture of palette will
be incorrect.  In SunShow's libraries for Clipper, any function
that needs to grab the screen may not grab palette correctly for
this same reason.

*IBM Compatible VGA: No known or reported problems.

Note: The MDA video card does NOT support graphics, therefore,
cannot be used with images. The MCGA for the PS/2 only supports
320x200x4, 320x200x256, 640x200x2, and 640x480x2 graphics modes
and outputs RGB analog video signals not TTL.  The Hercules
Monochrome Graphics Adapter supports 720x348x2.

2. External Drivers Required: Beyond VGA Mode 19 & Hercules Mono

    VIDEO DETECTION

    SUNSHOW Image Converter SuperVGA Video Drivers

Sun Country Software Products currently support more than 50
video display adapters having graphic and text resolution
capabilities beyond generic IBM compatible VGA.  These extended
graphic and text video modes are commonly referred to as
SuperVGA.  The installation utility, SETUPDRV.EXE has a list of
currently supported Video Board Manufacturers' Super or Extended
VGA boards with 256K, 512K, or 1Meg onboard video ram on its
main menu.  Please note that for full SVGA support, 1 Meg
onboard video ram is required for access to all SVGA video
modes, especially 1024 x 768 x 256 and beyond.  Special notes
contained within HDILOAD.DOC apply to 8514/A and IBM XGA
graphics adapters.

    FIRST TIME INSTALLATION WITH INSTALL.EXE from Distribution Disk

When installing SUNSHOW Image Toolkit from the distribution
diskette with INSTALL.EXE, the video driver installation
utility, SETUPDRV.EXE, is automatically invoked as a part of the
installation.  INSTALL.EXE is menu-driven and is by far the
easiest, most convenient method to use to correctly install the
Image Toolkit.  You must manually select and type in the
appropriate number of the video card in the PC from the list,
then press <<ENTER>>.   Both the extended mode video driver and
the extended mode font driver will be installed for you.

    AUTODETECTION of SVGA CHIPSETS

A video chipset autodetection routine has been implemented in
the current release of SETUPDRV.EXE that will attempt to make an
identification of the chipset used in the video card.  The
possible chipset detected will be displayed above the list of
currently supported SVGA cards on the main menu.  No SVGA
detection scheme is totally reliable at this time, since many
manufacturers do not provide a positive method of identifying
their boards.  For this reason, the autodetection routine will
only suggest what it thinks is the correct chipset, the user is
still required to type in the number for the video card
manually.  We strongly encourage you to verify the video card
manufacturer, manufacturer of the chipset used, and the amount
of video memory actually on the board.  There is also no known
method for detecting the amount of video memory installed on any
brand of SVGA card.

    MANUAL RE-INSTALLATION with SETUPDRV.EXE

SUNSHOW'S SETUPDRV.EXE will make installation convenient & easy
from a menu-driven prompt.  You must have all of the
decompressed DRIVERS and the installation program, SETUPDRV.EXE
in the working directory.  Simply invoke SETUPDRV from the DOS
prompt and a menu will appear.  Select the appropriate brand of
video card from the numbered list, type in the number and press
ENTER.  Both the extended mode video driver and the extended
mode font driver will be installed.

    MANUAL INSTALLATION:

Current Drivers must be copied to the file names that SUNSHOW
utilities and display modules require.  There are TWO drivers
necessary.  The VIDEO DRIVER must be named:

    SUNVIDEO.DRV.

The FONT DRIVER must be named:

    SUNFONTS.DRV.

Please note that "fonts" in the driver name is plural.  Rather
than renaming the driver files included on the distribution
diskette, it is a better practice to copy it to this new file
name and retain the original.

    TROUBLE SHOOTING VIDEO PROBLEMS

    COMMON ERROR MESSAGES:

Even though the SUNSHOW Image Toolkit has a reputation for being
easy to use and trouble-free,  occasionally you may experience
difficulties.  This error list reference is provided to assist
you in diagnosis of many possible problems and their solutions.

If you are using a DOS shell such as Windows, XTREE, 1DIRPLUS,
or DesqView, you may want to leave the shell and return to DOS.
SUNSHOW Image Toolkit routines are well behaved, but, any
co-existing shell or TSR usage runs the risks of excessive
memory allocation or internal contention that could lock up the
PC.  SUNSHOW routines do direct screen writes which may cause
contention with ill-behaved TSRs.  When SUNSHOW routines give
you error messages relating to OUT OF MEMORY or inability to
allocate memory for buffers, the shell or
terminate-and-stay-resident utilities are hogging precious RAM
and preventing from correct operation.  Well-known ill-behaved
TSRs like SIDEKICK are definitely at risk for crashing when
attempting to co-exist with database applications.  Microsoft
WINDOWS 2.11 or older will NOT work with SUNSHOW Image Toolkit
routines.  All versions of DESQview, including DV/X are known to
not correctly restore or refresh SuperVGA graphic mode screens
upon returning to a graphic process (after swapping to another
process).  This is a DESQview problem and occurs even with
DESQview-specific or DESQview-aware programs running in SVGA
graphics modes.  Unless your graphic mode application can
refresh its own graphics screen, there is no currently known
solution.  The graphic mode process works correctly except for
this problem and only when swapped out.  It does not crash.
Quarterdeck Systems is working on this problem.

ERROR:    CANNOT FIND GRAPHIC MODE FOR THIS IMAGE

A. SUNSHOW video drivers for the correct video card MUST be
installed to operate the program correctly.  For convenience,
use SETUPDRV.EXE to install the drivers from a menu-driven
utility.

B. Video card may not have enough video RAM.  Most of the useful
SVGA video modes require at least 512K video RAM.

C. You may have scanned or video captured an image larger than
screen dimensions for the currently installed video card.
SUNSHOW display routines, named, "SHOWxxx.EXE, are "REAL MODE"
display that require that the image must fit within the screen
dimensions of a supported video mode.  Either adjust the screen
width and height to smaller screen dimensions by scaling the
image to smaller dimensions with one of the scaling functions or
use the "VIRTUAL MODE" display modules in the SUNSHOW
PROFESSIONAL Image Toolkit.  It usually is better to prepare
images so that they are displayed REAL MODE since this is
faster, better suited to commercial imaging applications, and
uses less PC resources.  Shold you require VIRTUAL display where
images are larger than screen dimensions, use the SUNSHOW
display modules, named "VIEWxxx.EXE.  With virtual display, any
mode having the correct number of colors or greater can display
any size image.  The image will load through the EMS page frame
into LIM 4.0 expanded memory into a virtual size, and you can
zoom, scroll, and pan a displayable viewport onto the virtual
image.

    IMAGE DIAGNOSTICS to SOLVE VIDEO PROBLEMS

A helpful diagnosis utility is included with SUNSHOW Image
Toolkit.  It's called INFO.EXE and will return useful diagnostic
information about the image that you are having difficulty with.
To use it, type:

    INFO FILENAME.EXT

and it will display useful information about the image, such as:
    SCREEN WIDTH
    SCREEN HEIGHT
    IMAGE WIDTH
    IMAGE HEIGHT
    NUMBER OF COLORS


ERROR:    CANNOT ALLOCATE MEMORY FOR LINE BUFFERS

The most common reason for this error message is that
terminate-and-stay-resident utilities or a DOS shell has taken
some of the memory that our routines also need.  You must unload
any such memory stealing utilities for SUNSHOW to work properly.
FoxPRO may need to be told to not hog all the memory.  The
Clipper database kernal libraries have a large memory
requirement.  You application may need to be swapped out to
complete the function returning the above error message.

    TROUBLE SHOOTING: SPECIFIC ADVICE TO TECHNICAL SUPPORT

You are advised to FIRST check video card manufacturer's
documentation for valid video modes, amount of video memory, and
chipset used.  In some cases, it may be necessary to remove
cover from PC and physically look at the chipset used and the
amount of memory chips.  The best way to describe the situation
for those users not having technical knowledge is to describe
the chipset in the following manner:

    1. Look for a large, SQUARE VLSI chip which may be surface mounted, and will
    be the largest chip on the board, and usually centrally located.  Read the
    manufacturer's name, trademark, and possibly the chip number.
    2. There will be rows or columns of small, rectangular identical chips on the
    video card. There will be four or eight usually.
    3. Count the small rectangular chips, we need to know the quantity of these 
    chips.  Do not confuse these chips with the 28-pin BIOS chips.  Usually 
    the video memory chips are DRAMs or VRAMs.  They may also be ZIP modules 
    (8514/A, etc.) or possibly SIMMS (Herc. Graphic Station, etc.)

    FOUR CHIPS - 256K of video memory or 512K of video memory
              Read the chips for size.  Size is printed on chips.
              Multiply the number of chips by memory amount on single chip.
              Single memory chips can be 256x1 or 256x4
    EIGHT CHIPS - Usually 1 Meg. video memory. 256x1, 256x4, 1x1 times chips.
              Could also be 2 Meg (NCR, etc.).

    SIXTEEN CHIPS - Usually 2 Meg. video memory. 256x1, 256x4, 1x1 times chips.
              Could also be 2 - 4 Meg (NCR, etc.).


IF SVGA card has the following onboard RAM, you may expect (usually) the
following resolutions, except as noted below (manufacturer's specifications
always take precedence):
    256K onboard Video RAM - 640x400x256 -  800x600x16
    512K onboard Video RAM - 800x600x256 - 1024x768x16
    1 Meg onboard Video RAM - 1024x768x256, some, with BIOS extensions
    can support 1280x1024x16/1024x1024x256, etc.
    2 Meg onboard Video RAM - 1280x1024x16, some, with BIOS extensions
    can support 1280x1024x256/1024x1024x256/1600x1024x16, etc.

    Usually, there will be a 16 color mode available that is one resolution higher than
    the highest valid 256 color mode.
    Some cards also support 640x350x256 (ET-4000, etc. but we do not recommend
    use of this mode).

    PARADISE Note: Western Digital has chosen to NOT support 800x600x256,
    therefore any board having a Paradise or WDC chipset will not have this mode,
    even though it has 512K video RAM.  Some early Paradise & WDC also does not
    support 1024x768x16 (including Compact, Dell, AST, etc.)  Certain releases
    of early WDC chipsets do not support all modes.

    IBM also has chosen to not support 800x600x256 in most cases.

SVGA MODES to Recommend to commercial customers:
    640x400x256 (not supported by all manufacturers)
    **640x480x256 includes all 16-color modes, has 1:1 pixel aspect ratio
    **800x600x256 includes all 16-color modes, has 1:1 pixel aspect ratio
    **1024x768x256 includes all 16-color modes, has 1:1 pixel aspect ratio
     *1280x960x256 includes all 16-color modes, has 1:1 pixel aspect ratio 

     * may require specific brand of video card
    ** highly recommended for commercial applications.

MONITORS: 800x600 at higher require analog, multisync/or analog
fixed frequency Monitors that support the desired video modes.
Incorrect display, rolling of picture, jumbled image, distortion
and severe monitor damage may result from over-driving monitor.
Even though monitor may appear to support the desired modes,
some video cards can easily over drive inexpensive monitors,
even those claiming to support the desired modes, because they
are high performance and require greater bandwidth than monitor
can support (C&T 453 chipsets, etc)  Some SVGA cards have
dip-switches or jumpers to "throttle back" or reduce the
bandwidth to fit capabilities of inexpensive monitors.  This is
a different parameter than the 8-bit/16-bit mode of operation
jumpers.  Non-interlaced monitors, while more expensive than
interlaced, are preferred or necessary for high performance graphics.

MS-DOS Real Mode Video Cards and Video Chipsets

ACuMos AvGA2, AVGA3
AST - (Paradise chipset, see Paradise notes, above)
ATI Wonder (ATI chipset)
ATI VGA Wonder (ATI chipset)
    No ATI High Color support
ATI Elite (Trident chipset)
AVance AL2101
Cardinal 1280 (Tseng ET4000 with 1280x1024 BIOS extension support), 1 Meg
CEG (see Edsun)
CHIPS & TECHNOLOGY 82C453 Chipset 1Mg, 512K 1024x768
CHIPS & TECHNOLOGY 82C452 Chipset, 512K, 640x480/800x600
              Even though 452 has 512K, it only supports
              640x480x256
CIRRUS LOGIC
COMPAQ, 512K, 256K (using Paradise chipset) not compatible with Triton
COMPAQ, Triton Graphic Controller, 1Meg, not compatible with regular Compaq
DEFINICON ET-4000, 1Mg, 512K, 256K
DELL (using Paradise chipset) Older
DELL (using WDC chipset) Newer, 1024x768x 256, 800x600x256!!
DIAMOND SpeedStar ET-4000, 1 Meg, 512K, 256K
DIAMOND Stealth using S3 Chipset, 1 Meg
EDSUN Laboratories CEG/DAC Continuous Edge Graphics
    In conjunction with 1 Meg SVGA TSENG ET-4000, C&T 452/453, TRIDENT 8900,
    PARADISE 1024, etc Chipsets.  Supported, but is special case -
    Requires utilities in Professional Toolkit to create, display, 
    convert, etc.  The CEG/DAC is a 100% pin compatible replacement DAC
    that may be purchased with a SVGA card or used as an after-market
    replacement DAC for the standard Color DAC, if the original is 
    socketed, not soldered in place.
EVEREX (Everex chipset) 512K video RAM
FORTUNER (Trident 8800) 512K video RAM
GENOA (Genoa chipset) 512K memory, Requires Sigma driver
     Is NOT a generic Tseng ET-3000
GENOA - 1 Meg (not supported unless it has ET-4000 installed)
GRABERT Autopack Apogee ET-4000, 1Mg, 512K, CEG and SVGA, with Edsun CEG/DAC
GROUNDHOG Graphics SHADOW, ET-4000, 1Mg, 512K, 256K
HEADLANDS Technology (see VIDEO Seven up to 512K only)
HELIO 1280 (Tseng ET4000 with 1280x1024 BIOS extension support), 1 Meg
HERCULES Monochrome Graphics, 720x348x2
IBM XGA 1024x768x256, 640x480x256 (16 color modes supported
    but XGA requires 1 Meg video memory to display
    1024x768 AND 640x480!! (SunShow Professional only)
IBM 8514/A Genuine IBM 8514/A only (SunShow Professional only)
IMTEC (Trident 8800) 512K video RAM
JATON (Trident 8800) 512K video RAM
LOGIX (Trident 8800) 512K video RAM
MAXXON )Trident 8800) 512K video RAM
MILLENIUM Spectrum ET-4000, 1Mg video RAM, BIOS extensions to
1280x1024x16
MONOLITHIC Systems UltraVGA 82C452 - 512K, 640x480 CEG and SVGA
MONOLITHIC Systems UltraVGA 82C453 - 1 Meg, 1024x768 CEG and SVGA
MXIC 86010
NCR 77C22 Chipset 4 Meg, 2 Meg, 1 Meg, 1024x768x256
              NOTE: BIOS extension to 1280x1024 is claimed
              by manufacturer but not implemented at this date)
OAK TECHNOLOGY Chipset  512K video RAM (OTI-37C, OTI-067, OTI-077)
ORCHID ProDesigner, Tseng ET-3000, 512K, 256K
ORCHID ProDesigner II, Tseng ET-4000, 1Mg, 512K, 256K
ORCHID Fahrenheit 1280 using S3 Graphic Accelerator, 1Mg
ORCHID Fahrenheit 1280 Plus using S3 Graphic Accelerator, 1Mg
PARADISE PVGA1A, 512K, 256K 800x600x16, 640x480x256 
              Note: Only 640x400x256 with 256K) (see Paradise note above)
PARADISE/WESTERN DIGITAL PVGA1B or WD90C00, 512K, 256K 1024x768x16, 
              800x600x16, 640x480x256 (see Paradise note above)
              Note: Only 640x400x256 with 256K) (see Paradise note above)
PRISM X-VGA 1 Meg, Tseng ET-4000, BIOS extensions to 1280x1024x16
S3 Graphic Accelerator chipsets, 86c911, 86c924, 86c801, 86c806, 86c928
SIGMA, Tseng ET-3000, 512K video RAM, Requires Sigma driver
              NOT generic Tseng ET-3000
SIGMA Legend, Tseng ET-4000, 1 Meg, 512K, 256K
SMART VGA (Trident 8800) 512K video RAM
SpeedStar (see DIAMOND) Tseng ET-4000 Chipset, 1Mg, 512K, 256K
     1024x768x256
SpeedStar Plus (see DIAMOND) Tseng ET-4000 Chipset, 1Mg, 512K, 256K
              (short card) 1024x768x256
STB, Tseng ET-3000, 512K, 256K, Requires STB driver NOT
              generic Tseng ET-3000
STB, Tseng ET-4000, 1Mg, 512K, 256K 1024x768x256 Requires STB4 driver
              NOT generic Tseng ET-4000
TECMAR 512K video RAM
TRIDENT IMPACT 8900 Chipset, 1Mg, 512K, 256K
TRIDENT TVGA 8900 (8916-8) Chipset, 1Mg, 512K, 256K
TRIDENT generic 8900 Chipset, 1Mg, 512K, 256K
TRIDENT generic 8800 Chipset, 512K, 256K
TSENG LABS generic ET-3000 Chipset, 512K, 256K
TSENG LABS generic ET-4000 Chipset, 1Mg, 512K, 256K
VEGA (see VIDEO Seven, older cards may not include complete video modes)
VESA Compatible SuperVGA Cards, 1Mg, 512K, 256K, See Vesa Note:
    (Older cards may require TSR, Newer cards are BIOS compatible,
    Some manufacturers may not have all modes implemented, may be
    slower than board specific driver.  Also, VESA standard
    does support up to 1280x1024x256, as does Sun Country driver)
    640x400x256
    640x480x256
    800x600x16 and 800x600x256
    1024x768x16 and 1024x768x256
    1280x1024x16 and 1280x768x256
    Note: VESA High Color modes are not supported by Sun Country)
VGA TWEAK MODES Non-standard modes using Sun Country drivers:
    Does not require SVGA, will work with an IBM compatible
    standard VGA: 320x400x256 & 360x480x256, 720x540x16, 800x600x16
    (800x600 requires multisync analog monitor)
VIEWPOINT by Everex (non-standard Trident 8800)512K video RAM
VIEWSONIC PerfectView ET-4000, 1 Meg. 1024x768x256
VIDEO SEVEN Chipset, 512K, 256K

WESTERN DIGITAL Paradise Chipsets WD90C00 (PVGA1B), WD90C10, WD90C11, 
     WD90C30 (?), 1Mg, 512K.   Note:WD90C00 is also known as PVGA1B

XEDAC ET-4000, 1Mg video RAM, CEG and SVGA to 1024x768
XGA, IBM
ZYMOS POACH Chipset, 512K video RAM

3. Not currently supported:

Known bug:

When SETUPDRV.EXE is run from a MS-DOS window under Quarterdeck
Systems, Inc., DESQview/X, (DV/X), it will fail to report the
correct video card.  DV/X hooks Int79, which fools the 8514/A
detection test to falsely report an 8514/A is present.  If run
from the DOS prompt before loading DV/X on the system, it will
report the correct video card.

SIERRA High Color (32,768 palette 16-bit)
8514A with video pass-through to Vesa connector
    (where 2 boards are installed - separate non-IBM 8514 with a
    regular SVGA using ribbon cable to Vesa pass-through
    connector on SVGA card)  Our drivers will work but since there
    is no physical connection between the boards to poll/detect the 
    states of each board in the two board installation, it is 
    impossible to detect and correctly set modes.  A separate 
    utility may be necessary to turn off 8514 modes in some cases.
Texas Instruments 34010/34020/34040
HERCULES Graphic Station, detected but not supported
Weitek W5086 Graphic Controller
Weitek P9000 Graphic Controller
WESTERN DIGITAL 1280/HighColor, WD90C31 Chipset, 1Mg Graphic Accelerator
Other Graphic Accelerators or Coprocessors

***************************************************************************

286/386 DOS Extenders Video Cards and Video Chipsets

BiModal Support using SunShow Professional, v.3.51 or newer is
provided for the video cards listed below:


CIRRUS LOGIC CL-GD542x True Color VGA Family
NCR 77C22 Chipset 4 Meg, 2 Meg, 1 Meg, 1024x768x256     tested 11/10/93
              NOTE: BIOS extension to 1280x1024 is claimed
              by manufacturer but not implemented at this date)
PARADISE/WESTERN DIGITAL PVGA1B or WD90C00, 512K, 256K 1024x768x16,      tested 11/10/93
              800x600x16, 640x480x256 (see Paradise note above)
S3 Graphic Accelerator chipsets, 86c911, 86c924, 86c801, 86c806, 86c928     tested 11/10/93
TSENG LABS generic ET-4000 Chipset, 1Mg, 512K, 256K     tested 11/10/93
WESTERN DIGITAL Paradise Chipsets WD90C00 (PVGA1B), WD90C10, WD90C11,      tested 11/10/93
     WD90C30 (?), 1Mg, 512K.   Note:WD90C00 is also known as PVGA1B
WESTERN DIGITAL 1280/HighColor, WD90C31 Chipset, 1Mg Graphic Accelerator

****************Cards Listed Below have not yet been ported**********



ACuMos AvGA2, AVGA3
AST - (Paradise chipset, see Paradise notes, above)
ATI Wonder (ATI chipset)     tested 10/29/93
ATI VGA Wonder (ATI chipset)     tested 10/29/93
    No ATI High Color support
ATI Elite (Trident chipset)
AVance AL2101
Cardinal 1280 (Tseng ET4000 with 1280x1024 BIOS extension support), 1 Meg
CEG (see Edsun)
CHIPS & TECHNOLOGY 82C453 Chipset 1Mg, 512K 1024x768     
	Bios v1.2.0  tested 10/29/93

CHIPS & TECHNOLOGY 82C452 Chipset, 512K, 640x480/800x600     tested 10/29/93
              Even though 452 has 512K, it only supports
              640x480x256
	Bios v2.2.0  tested 10/29/93
CIRRUS LOGIC Older??  unknown chip numbers
CIRRUS LOGIC 542x 1 Meg.
COMPAQ, 512K, 256K (using Paradise chipset) not compatible with Triton

NOT SUPPORTED ***COMPAQ, Triton Graphic Controller, 1Meg, not compatible with regular Compaq

DEFINICON ET-4000, 1Mg, 512K, 256K     tested 10/29/93
DELL (using Paradise chipset) Older
DELL (using WDC chipset) Newer, 1024x768x 256, 800x600x256!!
DIAMOND SpeedStar ET-4000, 1 Meg, 512K, 256K     tested 10/29/93
DIAMOND Stealth using S3 Chipset, 1 Meg     tested 10/29/93
ECLIPSE II Graphic Accelerator S3 Chipset
	note: hardware Restore Video State causes repeated screen 
	blanking during detect routine.  
	This is the only known S3 card with this problem.   tested 10/29/93
EDSUN Laboratories CEG/DAC Continuous Edge Graphics     tested 10/29/93
    In conjunction with 1 Meg SVGA TSENG ET-4000, C&T 452/453, TRIDENT 8900,
    PARADISE 1024, etc Chipsets.  Supported, but is special case -
    Requires utilities in Professional Toolkit to create, display, 
    convert, etc.  The CEG/DAC is a 100% pin compatible replacement DAC
    that may be purchased with a SVGA card or used as an after-market
    replacement DAC for the standard Color DAC, if the original is 
    socketed, not soldered in place.
EVEREX (Everex chipset) 512K video RAM     tested 10/29/93
FORTUNER (Trident 8800) 512K video RAM
GENOA (Genoa chipset) 512K memory, Requires Sigma driver
     Is NOT a generic Tseng ET-3000

NOT SUPPORTED **GENOA - 1 Meg (not supported unless it has ET-4000 installed)

GRABERT Autopack Apogee ET-4000, 1Mg, 512K, CEG and SVGA, with Edsun CEG/DAC
GROUNDHOG Graphics SHADOW, ET-4000, 1Mg, 512K, 256K     tested 10/29/93
HEADLANDS Technology (see VIDEO Seven up to 512K only)     tested 10/29/93
HELIO 1280 (Tseng ET4000 with 1280x1024 BIOS extension support), 1 Meg     tested 10/29/93

NOT SUPPORTED **HERCULES Monochrome Graphics, 720x348x2

NOT SUPPORTED **IBM XGA 1024x768x256, 640x480x256 (16 color modes supported
    but XGA requires 1 Meg video memory to display
    1024x768 AND 640x480!! (SunShow Professional only)

NOT SUPPORTED **IBM 8514/A Genuine IBM 8514/A only (SunShow Professional only)

IMTEC (Trident 8800) 512K video RAM
JATON (Trident 8800) 512K video RAM
LOGIX (Trident 8800) 512K video RAM
MAXXON (Trident 8800) 512K video RAM
MILLENIUM Spectrum ET-4000, 1Mg video RAM, BIOS extensions to
1280x1024x16     tested 10/29/93
MONOLITHIC Systems UltraVGA 82C452 - 512K, 640x480 CEG and SVGA     tested 10/29/93
MONOLITHIC Systems UltraVGA 82C453 - 1 Meg, 1024x768 CEG and SVGA     tested 10/29/93
MXIC 86010
NCR 77C22 Chipset 4 Meg, 2 Meg, 1 Meg, 1024x768x256     tested 10/29/93
              NOTE: BIOS extension to 1280x1024 is claimed
              by manufacturer but not implemented at this date)
OAK TECHNOLOGY Chipset  512K video RAM (OTI-37C, OTI-067, OTI-077)
ORCHID ProDesigner, Tseng ET-3000, 512K, 256K     tested 10/29/93
ORCHID ProDesigner II, Tseng ET-4000, 1Mg, 512K, 256K     tested 10/29/93
ORCHID Fahrenheit 1280 using S3 Graphic Accelerator, 1Mg     
	Bios 2.0   tested 10/29/93
ORCHID Fahrenheit 1280 Plus using S3 Graphic Accelerator, 1Mg     
	Bios 1.1   tested 10/29/93
PARADISE PVGA1A, 512K, 256K 800x600x16, 640x480x256      tested 10/29/93
              Note: Only 640x400x256 with 256K) (see Paradise note above)
PARADISE/WESTERN DIGITAL PVGA1B or WD90C00, 512K, 256K 1024x768x16,      tested 10/29/93
              800x600x16, 640x480x256 (see Paradise note above)
              Note: Only 640x400x256 with 256K) (see Paradise note above)
PRIMUS 
PRISM X-VGA 1 Meg, Tseng ET-4000, BIOS extensions to 1280x1024x16
REALTEK
S3 Graphic Accelerator chipsets, 86c911, 86c924, 86c801, 86c806, 86c928     tested 10/29/93
SIGMA, Tseng ET-3000, 512K video RAM, Requires Sigma driver
              NOT generic Tseng ET-3000
SIGMA Legend, Tseng ET-4000, 1 Meg, 512K, 256K
SMART VGA (Trident 8800) 512K video RAM
SpeedStar VGA (see DIAMOND) Tseng ET-4000 Chipset, 1Mg, 512K, 256K 
     1024x768x256    Bios 4.23           tested 10/29/93
SpeedStar Plus (see DIAMOND) Tseng ET-4000 Chipset, 1Mg, 512K, 256K     tested 10/29/93
              (short card) 1024x768x256
Diamond SpeedStar Stealth (see DIAMOND) S3 Chipset, 1Mg, 512K, 256K     tested 10/29/93
              (short card) 1024x768x256

NOT SUPPORTED **Diamond Viper WD Chipset

STB, Tseng ET-3000, 512K, 256K, Requires STB driver NOT
              generic Tseng ET-3000
STB, Tseng ET-4000, 1Mg, 512K, 256K 1024x768x256 Requires STB4 driver
              NOT generic Tseng ET-4000
TECMAR 512K video RAM
TRIDENT IMPACT 8900 Chipset, 1Mg, 512K, 256K     tested 10/29/93
TRIDENT TVGA 8900 (8916-8) Chipset, 1Mg, 512K, 256K     tested 10/29/93
TRIDENT generic 8900 Chipset, 1Mg, 512K, 256K     tested 10/29/93
TRIDENT generic 8800 Chipset, 512K, 256K     tested 10/29/93
TSENG LABS generic ET-3000 Chipset, 512K, 256K     tested 10/29/93
TSENG LABS generic ET-4000 Chipset, 1Mg, 512K, 256K     tested 10/29/93
VEGA (see VIDEO Seven, older cards may not include complete video modes)
VESA Compatible SuperVGA Cards, 1Mg, 512K, 256K, See Vesa Note:     tested 10/29/93
    (Older cards may require TSR, Newer cards are BIOS compatible,
    Some manufacturers may not have all modes implemented, may be
    slower than board specific driver.  Also, VESA standard
    does support up to 1280x1024x256, as does Sun Country driver)
    640x400x256
    640x480x256
    800x600x16 and 800x600x256
    1024x768x16 and 1024x768x256
    1280x1024x16 and 1280x768x256
    Note: VESA High Color modes are not supported by Sun Country)
VGA TWEAK MODES Non-standard modes using Sun Country drivers:
    Does not require SVGA, will work with an IBM compatible
    standard VGA: 320x400x256 & 360x480x256, 720x540x16, 800x600x16
    (800x600 requires multisync analog monitor)

NOT SUPPORTED **VIEWPOINT by Everex (non-standard Trident 8800)512K video RAM     tested 10/29/93

VIEWSONIC PerfectView ET-4000, 1 Meg. 1024x768x256     
	Bios 1.7  tested 10/29/93
VIDEO SEVEN Chipset, 512K, 256K     tested 10/29/93
WESTERN DIGITAL Paradise Chipsets WD90C00 (PVGA1B), WD90C10, WD90C11,      tested 10/29/93
     WD90C30 (?), 1Mg, 512K.   Note:WD90C00 is also known as PVGA1B
	Clone w/ WD90C00-JK no Bios Ver. no.
XEDAC ET-4000, 1Mg video RAM, CEG and SVGA to 1024x768     tested 10/29/93

NOT SUPPORTED **XGA, IBM

ZYMOS POACH Chipset, 512K video RAM

Known bug:

When SETUPDRV.EXE is run from a MS-DOS window under Quarterdeck
Systems, Inc., DESQview/X, (DV/X), it will fail to report the
correct video card.  DV/X hooks Int79, which fools the 8514/A
detection test to falsely report an 8514/A is present.  If run
from the DOS prompt before loading DV/X on the system, it will
report the correct video card.

ECLIPSE II Graphic Acelerator 
	note: Restore Video State in hardware causes screen blanking during
	detect.  Only S3 card with this problem.   tested 10/29/93

NOT SUPPORTED **SIERRA High Color (32,768 palette 16-bit)

NOT SUPPORTED **8514A with video pass-through to Vesa connector
    (where 2 boards are installed - separate non-IBM 8514 with a
    regular SVGA using ribbon cable to Vesa pass-through
    connector on SVGA card)  Our drivers will work but since there
    is no physical connection between the boards to poll/detect the 
    states of each board in the two board installation, it is 
    impossible to detect and correctly set modes.  A separate 
    utility may be necessary to turn off 8514 modes in some cases.

NOT SUPPORTED **Texas Instruments 34010/34020/34040

NOT SUPPORTED **HERCULES Graphic Station, detected but not supported     
	GB102A Bios v1.51s w/ 4 Meg Memory  tested 10/29/93

NOT SUPPORTED **Weitek W5086-070 PFP Graphic Controller     
	Rapix VESA no Bios revision no.  tested 10/29/93

NOT SUPPORTED **Weitek P9000 Graphic Controller

NOT SUPPORTED **WESTERN DIGITAL 1280/HighColor, WD90C31 Chipset, 1Mg Graphic Accelerator
Other Graphic Accelerators or Coprocessors

12/30/93