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WHATVGA.DOC
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1993-02-02
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WHATVGA version 1.0 23/jan/93
Copyright 1991,982,93 Finn Th¢gersen
Command line switches:
whatvga [+acumos] [-ncr] [=1024]
where +chipset forces WHATVGA to proceed as if this chipset was found.
The test for this chip set will be executed in order
to check for memory and revision.
No other chipsets will be tested.
-chipset ensures that the tests for this chipset will NOT be
executed. Useful if a chipset is misidentified
or some earlier test gives problems.
=kbytes Forces the number of Kbytes of video RAM on the
adapter to the specified value.
Whatvga has 6 options in the main menu:
1 Test standard VGA
Allows you to test the standard VGA video modes.
Draws a test pattern, including a color palette
and writes basic information as text on the display.
2 Test extended modes
Allows you to test the extended video modes of the adapter.
Draws a test pattern, including a color palette
and writes basic information as text on the display.
On the upper and left edge every hundred pixels is marked.
3 Scroll test
Allows you to test the scroll function of the adapter.
Draws a test pattern, including a color palette
and writes basic information as text on the display.
The test pattern is drawn in the largest resolution there
is video memory for.
With the arrow keys you can move around in the pattern.
4 Search for video modes
Steps through the video modes 14h to 7Fh to see which ones
are implemented by this adapter.
When a video mode is found the rutine attemps to analyse
the mode and then draws a test pattern to check the analysis.
When the test pattern is displayed you can view the register
values by pressing the "d" key, or save them to a file named
REGISTER.VGA by pressing the "f" key.
5 Test VESA modes
This item is only shown if a VESA driver is found.
Draws a test pattern, including a color palette
and writes basic information as text on the display.
9 Exit
Adapters tested:
Ident: Memory: Ext res: Scroll:
Acumos:
AVGA2 OK Ok Ok No *
AVGA3
Ahead:
A
B
ATI:
18800
18800-1
28800-2
28800-4
28800-5
Avance Logic:
AL2101 Ok Ok Ok * Ok *
Chips&Tech:
82c451
82c452
82c453
82c455
82c456
82c457
F65520
F65530
Cirrus:
510/520
610/620
5422 Ok Ok Ok Ok
Compaq:
Everex:
Genoa:
5100/5200
5300/5400
6100
6200/6300
6400/6600
7900
MXIC:
86010 Ok Ok Ok
NCR:
77C20
77C21
77C22E Ok Ok Ok Ok *
77C22E+
Oak:
OTI-37C Ok Ok
OTI-067 Ok Ok Ok
OTI-077
Paradise/Western Digital:
PVGA1A Ok Ok Ok Ok
WD90C00
WD90C10
WD90C11
WD90C2x
WD90C30 Ok Ok Ok Ok
WD90C31
Primus:
P2000 Ok Ok Ok Ok
Realtek:
RT3106 Ok Ok * *
S3:
86c911
86c911A
86c924 * Ok Ok Ok
86c801
86c805
86c928
Trident:
8800BR
8800CS
8900
8900C
9000
Tseng:
ET3000 Ok Ok Ok *
ET4000 Ok Ok Ok Ok
ET4000W32
Video7/Headland:
HT-208
HT-216
Yamaha:
6388
Acumos AVGA2:
Scroll doesn't work.
Avance Logic:
Scroll has problems.
Search for modes has problems with the width of scanlines
and determining 256 or 64K colors.
Cirrus 5422:
Search for Mode has problems determing the number of bytes in a scanline.
NCR:
Search for modes has problems determining the number of bytes in a scanline
in all 256 color modes.
Oak:
The 4 color modes (55h and 57h for the 067) currently doesn't work.
Realtek:
Mode 23h (1024x768 4color) does not work.
Scroll has problems with crossing the 512K mark.
Search for Mode has problems determing the number of bytes in a scanline
VESA modes doesn't work.
S3:
The 86c924 is IDed as an 86c911A.
I hear a rumor that they are actually the same ??
Tseng 3000:
The Tseng 3000 seems to enable different amounts of memory for
different modes, thus using "larger than physical" displays
is rather problematical.
Generel Problems:
I can't tell the difference between the Sierra "Mark2" SC11482/3/4
(15 bits) and the "Mark3" SC11485/7/9 (15/16 bits) RAMDACs.
The Acumos ADAC1 seems to be misidentified as an ATT20c491/2.
With the SS24 DAC I can't tell if we are in an 256, 32768 or 16M color
mode (Search for modes).
On many cards interlaced modes are identified as app. half their
actual height by the Search for modes rutine.
Search for modes doesn't understand 2 and 4 color modes.
Some of the extended modes may only be implemented on
some otherwise similar boards, depending on make and BIOS rev.