            CL-GD754X Japanese OS/2 Warp Driver Installation Disk
                              (v1.30)


Change from 1.20 to 1.30 production
-----------------------------------

Files modified: 

README.1ST, SVGA.EXE, SCREEN01.SY_, SCREEN02.SY_, VSVGA.SY_, BVHSVGA.DL_,

Problems Solved:

-Mouse cursor is duplicated in Japanese OS/2 Warp.

-CLINST30.CMD causes an error message "SYS00202: The system cannot find 
 the file specified." upon completion.

-Mouse cursor can't move to certain location on screen when it is set at
 640x480x256c resolution, using 8x6 panel and with expension on. PDR #2630

-Fixed set 640x480x16M mode, Hot key switch to CRT, the CRT shows distortion 
 and noise in some systems. PDR#3397 

-CRT display is out-of-sync after hot-key switching to Simul and open a 
 Win-OS/2 full screen in 256 color modes. PDR#3398

-The title bar will disappear or will move to the bottom of the screen
 when switching back from a PM desktop to an OS/2 full screen session.
 It only happens in 640x480 at 64K colors with an 800x600 SVGA TFT panel. 
 PDR#2399

-In SimulSCAN, toggling between PM and DOS full screen blanks the panel
 screen and the monitor refresh is changed. PDR#2408
 
-In SimulSCAN , Alt-Esc to toggle between full-screen OS/2 session and PM
 desktop may cause SVGA TFT panel to shake up and down.  PDR#2416


Resolution and Colors Supported in OS/2 PM Desktop
--------------------------------------------------
640x480   256 colors    (CRT/Panel/SimulSCAN display & all panels)
800x600   256 colors    (CRT display and all 8x6 panels)
1024x768  256 colors    (CRT display only)
1280x1024 256 colors    (CRT display and 2M video memory)
640x480   64K colors    (CRT/Panel/SimulSCAN display except 8x6 DSTN panels)
800x600   64K colors    (CRT display & 8x6 TFT panel only)
1024x768  64K colors    (CRT display and 2M video memory)
640x480 16Mil colors    (CRT display and 6x4 TFT panel only)


Resolution and Colors Supported in WIN-OS/2 Full-Screen Session
---------------------------------------------------------------
640x480   256 colors    (CRT/Panel/SimulSCAN display and all panels)
800x600   256 colors    (CRT display and all 8x6 panels)
1024x768  256 colors    (CRT display only)
1280x1024 256 colors    (CRT display and 2M video memory)
640x480   64K colors    (CRT/Panel/SimulSCAN display except 8x6 DSTN panel)
800x600   64K colors    (CRT display and 8x6 TFT panel only)
1024x768  64K colors    (CRT display and 2M video memory)
640x480 16Mil colors    (CRT display and 6x4 TFT panel only)


How to Install OS/2 Desktop Driver & WIN-OS/2 Full-Screen Session
-----------------------------------------------------------------

1.  Make sure the GD754X JOS/2 Driver disk is labeled "CL DISP" by using
    DOS Label command (C:\DOS\LABEL A: or B:).
2.  Install JOS/2 WARP! (if not already installed) and select "VGA" as
    the primary display adapter during installation. Do not select
    "Cirrus Logic" because it currently only supports Cirrus Logic
    desktop products.
3.  Insert the Cirrus Logic GD754X JOS/2 Warp Driver disk into the floppy
    drive.
4.  Open an OS/2 Full-Screen session.
5.  Change the prompt to the floppy drive which contains the driver disk.
6.  Invoke the OS/2 batch file CLINST30.CMD using OS/2 boot drive, without
    a colon, as the parameter ([A:\]CLINST30 C).
7.  Select the primary display type with the "Cirrus Logic GD754X" title.
8.  Follow the applicable directions to ensure a complete installation.

How to Change Screen Refresh Rates in OS/2 Desktop
--------------------------------------------------

1.  During the driver installation process the Monitor Configuration/
    Selection Utility dialog box will appear and display the following
    choices:
    (1) Default Monitor Type - this choice will use the monitor default
    settings.
    (2) Display Adapter Utility Program - with the aid of an application
    program such as CLMODE.EXE, this choice allows the user to set various
    screen refresh rates on all resolutions supported by their monitor.
    A dialog box will appear asking for the location and name of
    the utility program.

        For example:
        c:\vgautils\clmode.exe t640=75 t800=70 t1024=72 t1280=87

        CLMODE.EXE comes with the DOS Drivers Disk
    The new settings will be saved to the BIOS and OS/2 will invoke
    SVGA.EXE to create a new SVGADATA.PMI file.  The .PMI file will contain
    the screen refresh rates chosen from the utility program.


How to Change Resolution & Colors in OS/2 Desktop
-------------------------------------------------
1.  After driver installation is complete, open the System Setup folder.
2.  Locate the System icon, mark it then hit the return key or double-click
    the icon to execute the program.
3.  The first screen has 2 pages.  The first page displays all the available
    resolutions, number of colors and screen refresh rate.
4.  The second page has two sections: Display Name, which displays various
    monitor types, and View Current Configuration, which displays the
    maximum resolutions and screen refresh rates for the type of monitor
    selected.
5.  After the selections are made, close the System applet and execute a
    Shutdown to allow the changes to take effect.

NOTE:   Choosing different screen refresh rates in the System applet will
        have NO effect to the current configuration.

How to Change Resolution & Colors in WIN-OS/2 Full-Screen Session
-----------------------------------------------------------------
1.  The WIN-OS/2 full-screen or windowed session will be configured with the
    same resolution and number of colors chosen for the OS/2 PM desktop.  For
    example, if 800x600x65536 colors is chosen in an OS/2 desktop, opening a
    WIN-OS/2 session will also display 800x600x65536 colors.

NOTE:   Do NOT execute Winmode to change resolution and colordepth in a
        WIN-OS/2 session.


Known Problems
--------------

1.  The title bar will disappear or will move to the bottom of the screen
    when switching back from a PM desktop to an OS/2 full screen session.
    Problem is evident only in SimulSCAN display using a resolution of
    640x480 at 64K colors with an 800x600 SVGA TFT panel.

2.  Launch OS/2 in SimulSCAN display.  Open a DOS window then press Alt-Home
    to open a full-screen DOS.  The display in the Panel side will disappear.
    Problem occurs with the following resolutions and colordepths:
        640x480 256 & 64k colors
        800x600 256 & 64k colors
        1024x768 256 colors

3.  Launch OS/2 in SimulSCAN display, open a full-screen OS/2 session then
    press Alt-Esc to go back to the PM desktop.  Open a full-screen DOS,
    switch display to CRT, then close the DOS session.  Press Alt-Esc until
    the OS/2 full-screen display appears.  This process will cause the panel
    display to shake up and down.  Problem occurs only with an 800x600 SVGA
    TFT Panel when using the following resoltuions and colordepths:
        640x480 256 & 64k colors
        800x600 256 & 64k colors
        1024x768 256 colors




