Date:      02/02/1999
Product:   SiS 5597, SiS 5598
Subject:   VGA Driver Change Notice - Version 1.13 ( Certified by Microsoft )

# Files Name			  

1.  Diskette Version :	
        597113-1.exe,   597113-2.exe,   597113-3.exe,   597113-4.exe,   
        597113-5.exe,   597113-6.exe,   597113-7.exe,   597113-8.exe,
        597113-9.exe,   597113-a.exe,   597113-b.exe,   597113-c.exe,
        597113-d.exe
2.  CD-Title Version :  597cd113.exe                               
3.  VGA BIOS         :  597v113.32k
    

# Change parts from Ver. 1.09 to Ver. 1.13:
(1)  SiS 5597/5598 VGA utility modified.
(2)  SiS 5597/5598 Window NT VGA Driver modified.
(3)  SiS 5597/5598 Windows 95 & 98 VGA Driver modified.
(4)  SiS 5597/5598 Window 3.1 VGA Driver modified.
(5)  SiS 5597/5598 IBM OS/2 VGA Driver modified.


# Files "Readme.txt" and "Release.txt" are both included in the 
   Driver files 
   
  "Readme.txt" describes the Driver Files Contain and Driver Usage,
   Installation method. 

  "Release.txt" describes the Fixed Log of Driver 1.13.

=============================================================
SiS 5597/5598 VGA Driver & BIOS Modified Log:


[BIOS]
==============================
Change parts from Ver. 1.10 to Ver. 1.13
(1) Remove SiS Splash Screen from Boot-Up
(2) Re-execution set_chrontel/get_chrontel if I2C did not
      work properly. (for fixing customer's bug)
(3) Modify SR12 Horizontal retrace skew
(4) Modify Print Screen Error Problem
(5) Adjust All Standard Video Modes CRTC Registers 
(6) Assert Clk Low before start I2C Condition
(7) Modify Chk_ddc2b0 routine for more reliability
(8) Add Check Header and Check Sum 
(9) Wait for 2 Sec. if Check fail (for Tatung MV500 Monitor)

[Driver]
==============================
<Major Changes>
 
<Win95&Win98>
(1) Refresh rate show up which support the monitor
(2) When select "Default Adapter" from "setting->adapter", the refresh rate is
    60Hz. 56Hz modes is elimated from INF file.
(3) passing WHQL test (so NT5.0 must be ok for WHQL after Oct. 30)
(4) VPE disabled, overlay problem solved and display mode utility be marked 
    for WHQL
(5) Include DirectX 6 driver.

[Fixed issues]
==============================
<Win95&Win98>

<Title>: 1.10 driver + 1.07a VBIOS compatibility
<O.S.>: Win98
<Description>: 1.)1.07a VGA BIOS + install V1.10 driver under Windows98
               2.)The Display Modes (Refresh Rate included) and Gamma 
                  Correction tables disappear.
               note : It can't be found in V1.10 driver + V1.10 VGA BIOS.
<V. Driver>: 1.10
<V. Chip>: 5597 (shared)
<Designer's Note [Why]>: 
                        1.10Driver + 1.07VBIOS incompatible problem is caused by
                        the registry "INF subkey" emptiness.
==================

<Title>: Some Japanese characters are wrong
<O.S.>: Win95 Japanese Version
<Description>: 1.)After setup V1.10 driver under win95 Japanese version
               2.)Some Japanese characters are wrong.
<V. Driver>: 1.10
<V. Chip>: 5597 (shared)
==================                        

<Title>: Refresh rate show up which aren't support by monitor.
<O.S.> Win95 & Win98
<Description>: 1.)When change monitor from 1525 to MV400, refresh rate came up 
                  at 85Hz, which the MV400 didn't support.
               2.)Driver allows you to select unsupported refresh rate.(i.e. 
                  1725 1280x768x16bpp@75Hz)
==================

<Title>: Display corruption after enabling "Turn off monitor" when playing media
         player
<O.S.>: Win98
<Description>: 1.)With "media player" playing an AVI file.
               2.)Enable "Turn off monitor" from Display Properties\Screen Saver
                  \Settings...
               3.)When enable the "Turn off monitor", the screen show corruption.
==================

<Title>: PC98:Var20 test result->NotRun
<O.S.> Win95 & Win98
<Description>: 1.)WHQL "PC98 Var 20" test result->NotRun 
               2.)Find in 2D driver, the 640x400x16bpp mode not support
               note: VBIOS has support 640x400x16bpp
==================

<Title>: When running "LapLink", 5598 will hang
<O.S.> Win95 & Win98
<Description>: 1.)5598 PC install "LapLink" V7.5a
               2.)When functioning as laplink remote control host, 5598 system 
                  will hang.
               note: It is pass when 5598 system use S3 VGA Card.
==================

<Title>: MS-DOS hang after window standby mode
<O.S.>: Win98
<Description>: 1.)In config.sys added the lines:
                  device=c:\windows\command\display.sys con=(ega,,1)
                  covntry=002,850.c:\windows\command\country.sys
               2.)In autoexec.bat added the following lines:
                  Mode con cp prep=((850)c:\windows\command\ega.cpi)
                  Mode con cp sel=850
               3.)Enter Win98, press the hardware "standby" bottom, and then wake
                  up the system.
               4.)Open MS-DOS Prompt, switching between full-screen and windows 
                  MS-DOS mode, to see if there is hanging.
================== 
<Title>: MS-DOS hang after window standby mode
<O.S.>: Win98 English
<Description>: 1.)In config.sys added the lines:
                  device=c:\windows\command\display.sys con=(ega,,1)
                  covntry=002,850.c:\windows\command\country.sys
               2.)In autoexec.bat added the following lines:
                  Mode con cp prep=((850)c:\windows\command\ega.cpi)
                  Mode con cp sel=850
               3.)Enter Win98, press the hardware "standby" bottom, and then wake
                  up the system.
               4.)Open MS-DOS Prompt, switching between full-screen and windows 
                  MS-DOS mode, to see if there is hanging.
==================

<Title>: When waken up, there has black bars at the bottom of screen
<O.S.>: Win98 Japenese
<Description>: 1.)Enter win98 Japanese version, press the hareware "standby".
               2.)When waken up the system, there has black bars st the bottom
                  of screen.
==================

<Title>: System hangs after waking up with media-player playing AVI file.
<O.S.>: Win98 English
<Description>: 1.)Enter win98 English version, playing an AVI file with media-
                  player.
               2.)press the hareware "standby".
               3.)System hangs after waking up with media-player playing AVI file.
==================                

<Title>: In MM test, 5597/8 as secondary, change 5597/8 monitor type, system
         will hang.
<O.S.>: Win98
<Description>: 1.)In Multi-Monitro test, 5597/8 as the secondary adapter.
               2.)When Multi-Monitor function enable, change 5597/8 monitor type,
                  then system will hang.
               3.)When 5597/8 as Primary adapter, we can change the 5597/8 
                  monitor type.
================== 

<Title>: Open a .pdf file, output image has some noise.
<O.S.>: Win98
<Description>: 1.)Open a .pdf file with Abode Acrobat reader.
               2.)There have some noise in the top of output image.
================== 

<Title>: Pink Screen on CD ROM removal while playing a game.
<O.S.>: Win98
<Description>: 1.)Play movie with media-player
               2.)Eject CD disk
               3.)Pink color in media-player window.
================== 

<Title>: [WHQL]Direct Draw\Read Scan Line Test fail
<O.S.>: Win98
<Description>: 1.)In Win 98, Run WHQL DCT Test Manager.
               2.)Direcr Draw\Read Scan Line Test will fail.
================== 

<Title>: [WHQL]Direct Draw\Surface Flipping test fail
<O.S.>: Win98
<Description>: 1.)In Win 98, Run WHQL DCT Test Manager.
               2.)Direcr Draw\Surface Flipping Test will fail.

==================
< NT 4.0 >

<Title>: NT4.0, PC9x Tddraw fail
<O.S.> NT 4.0
<Description>: 1.)In NT 4.0, run PC9x 4 Test Suite for NT 4.0.
               2.)Run Tddraw test will fail.
               3.)Error message is :PC97 Test : 22. Programmable Blter Stride fail

