1. p9x00_v201a.zip Driver
2. vpr95201.txt File Contents

vpr95201.txt Driver File Contents (p9x00_v201a.zip)

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Diamond Viper - Weitek Power Windows 95 Alpha Driver         README.TXT
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** Important Notice **
----------------------

Please note that you have been provided with an Alpha version of our 
Viper Windows 95 driver.  By using this driver, you have accepted 
responsibility for any issues that may develop with your computer 
system once you have installed this driver. 

Please note the known driver limitations in this document. 

If you experience any problems or difficulties while using this driver,
please complete the problem report (PDR.TXT)  located on this disk. You
may fax the problem report (Attention:  Technical Support - Viper 
Windows 95 driver) to 408-325-7171,  mail it to 2880 Junction Ave., 
San Jose, CA 95134 or e-mail this document to any of Diamond's on-line 
services. Please do NOT call Diamond's Technical Support for 
difficulties you encounter.  Technical Support does not offer direct 
support for this Alpha driver.


Release Notes
-------------

This is version 2.01A of the Windows 95 driver for the Viper series.  
This is an accelerated driver. This driver currently supports the 
following Diamond Viper display adapters:

        Viper Pro PCI
        Viper SE PCI
        Viper VLB

	Note: This driver does not currently support the Viper Pro\SE VLB or 
	the Viper PCI. Support for these cards will be added in a future
	release of the driver.

        
Windows 95 Installation Notes
------------------------------

Preparing for the installation:
        a. If you have downloaded the v2.01A drivers to your hard disk, 
	   perform the following:

		i.   Create a temporary directory to contain the downloaded file.
		ii.  Execute the file to perform the file decompression.
		iii. Make note of the complete path to the expanded files.

        b. If you have the floppy disk version of the v2.01A drivers
		place the floppy disk in the drive now.

1.	Click on the START button.
2.	Select the SETTINGS option.
3.	Choose the CONTROL PANEL.
4.	Open up the DISPLAY icon.
5.	Click on the SETTINGS tab.
6.	Press the CHANGE DISPLAY TYPE button.
7.	You should first select the Monitor Model to match your system.
	If this is already done skip to the next step.
8.	Click on the CHANGE  button in the Adapter Type window.
9.	Press the HAVE DISK button.
10.	Insert the diskette, or path to the directory that contains the
	Viper Windows 95 Drivers (e.g. the diskette in A: drive) and 
	press <ENTER>.
11.	Choose the VIPER and bus type that corresponds to your video 
	card adapter (e.g. VLB or PCI) from the list and then click on 
	OK.
12.	The drivers will be installed and you will be returned to the 
	main Settings window where you can select your preferred 
	resolution and color depth. 
13.	After you have selected a mode you will be asked if the system 
	can be restarted. Please restart the machine at this point.  
14.	The drivers are now installed.


Known Issues
------------

Viper VLB:  When starting Windows 95, a corrupted band is displayed.

Viper VLB 2MB & Viper SE 2MB with BrookTree 485 DAC:  Windows displays 
black screen when using 800x600x32bpp.

Viper VLB 2MB & Viper SE 2MB with BrookTree 485 DAC:  Random screen 
corruption in Adobe Illustrator 4.10.

Viper VLB:  When a driver option is selected under Weitek Power tab, 
the screen changes correctly, but when you select <CANCEL> the screen 
does not change back to the previous settings.

Viper VLB:  Select Shutdown and restart. System hangs at the "Please 
Wait For System To Shut Down" screen.

Windows 95 VDD bug:  On VLB and some early PCI systems the BIOS setup 
needs to have Shadow BIOS for the VGA Adapter region (C0000~C7FFF) set 
to Write Protect, if available. This problem is noticeable if you open 
a DOS session Full-Screen then press <ALT><ENTER> to return to Windows 
and again <ALT><ENTER> to return to DOS Full-Screen. If the system then
locks-up or gives a blue screen fatal-error message this means that the
card's VGA BIOS has been overwritten and you must either enable Shadow 
Write Protect, or altogether disable Video ROM-BIOS Shadowing. This 
problem is caused by the Windows95 VDD and cannot be corrected in 
future drivers.

ALL PCI:  Color palette shift in Mech Warrior 2 (Pentium Processor 
Edition) when game starts.


Known Limitations
-----------------

Viper SE 2mb with BrookTree 485 DAC:  No 24 bit color option. This is a 
limitation of the hardware.


Issues Addressed and Features Added
-----------------------------------

DirectDraw:  The driver now provides hardware acceleration and support 
for Microsoft's Direct Draw API.
 
Acceleration:  Screen to Screen BitBlt's, Memory to Screen, Solid 
Brushs, Patterned Brushes, Quads and TextBlts are now supported and 
accelerated wherever possible.

WeitekCPLX:  The control panel has been extended to work with the new 
Microsoft DisplayCard Driver interface method.

DPMS:  Was not asserting blanked video during shutdown (DPMS Level-3) 
and thereby not fully switching off the monitor.


Contacting DIAMOND
------------------

If any problems or difficulties are encountered while using this 
driver, please fill out a problem report (PDR.TXT) included with this 
product and forward it to Diamond Multimedia. You may send the problem 
report to us via any of the methods below.

Postal Service  : Diamond Multimedia Systems, Inc.
                  ATTN: Technical Support
                  2880 Junction Avenue
                  San Jose, CA  95134-1922
FAX             : (408) 325-7171
BBS (to 14400)  : (408) 325-7080
BBS (to 28800)  : (408) 325-7175
CompuServe      : GO DIAMOND
America Online  : Keyword "DIAMOND"
MSN             : GOTO DIAMONDONLINE
WWW             : http://www.diamondmm.com
FTP             : ftp.diamondmm.com
Internet E-Mail : techsupt@diamondmm.com



All product names listed are trademarks or copyrights of their
respective owners.
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Diamond Multimedia Systems, Inc.                            (c) 1993-96
(408) 325-7000                                      All Rights Reserved
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$Id: readme.tx@ 1.46 1996/07/16 15:12:45 jasonm Exp $
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