
<<  Western Digiatal ThinkPad Video Driver Release Information >>

                                                 -- Release date   04/03/96 --

1.0 Install ThinkPad 750/755 family SVGA video device drivers
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  The standard video drivers included in the Windows NT only supports
  up to 16 colors. When you need the color depth more than 16 colors,
  it is required to install this Windows NT video drivers which supports
  the following feature:

     640x480  256 colors,(LCD mode, CRT mode and LCD/CRT both mode)

     800x600  256 colors,(LCD mode and LCD/CRT both mode for 755CX,
                          CRT mode only for the other 750/755 Family)

     1024x768 256 colors (CRT mode only)

  This video driver diskette supports the following ThinkPad:

  - ThinkPad 750C/755C/755Cs/755CE/755CSE/755CD/755CDV/755CX which has
    Western Digital video control chip.


  Installation Instruction:

  1. Boot Windows NT Workstation and logon to the system.
  2. Click "Command Prompt" at Main menu
  3. Type the following command at DOS session:

     A:>install C:\WINNT35   (enter)

     C:\WINNT35 is the drive and path where Windows NT is installed


  4. When files are copied, go back to Program Manager - Main
  5. Click "Control Panel"
  6. Click "Display", click "Change Display Type..."
  7. At Adapter Type, click "Change..." and Select the following adapter
     at Select Device list

     "Western Digital Graphics Adapter"

  8. Click "Install" and follow the instruction on the screen
  9. When installation completes, shutdown and restart Windows NT
 10. Click "Display", select 16 colors or 256 colors in "Color Palette"
 11. Click "Test" to make sure that the selected color depth is set
     correctly.
 12. Shutdown and Restart Windows NT. Now, you finish the setup for SVGA
     setup.



2.0 Notice

  When you install this SVGA driver, following must be considered as the
  guidance.

  1. This video driver supports 256 colors for TFT model ThinkPad such as
     for ThinkPad 345C/370C/755C/755CE/755CX/755CD/755CV/755CDV.
     This color depth is supported on 640x480, 800x600 (755CX only) and
     1024x768 (CRT mode only) resolution.

  2. DSTN model of ThinkPad such as 750Cs/755CSE support 256 colors only
     with 640x480 resulution for LCD mode, CRT mode or LCD/CRT mode.
     When you use external CRT, it allows you only with 640x480 resolution.

  3. Western Digital miniport driver (WDVGA.SYS) included in this driver
     diskette is exactly the same one available in Windows NT 3.51 Service
     Pack #4. Installing the Service Pack #4 deos not affect the video
     function on these machines.


  4. Dynamic resolution change between CRT and LCD and virtual screen function
     are not suppotred. If you use with 1024x768 CRT only mode and switching
     from CRT mode to LCD mode (640x480 resolution) for example, screen image will
     be forced to 640x480 resolution. Switching back to CRT only mode again stays
     with 640x480 resolution on CRT. To restore to 1024x768, go to Display
     Settings menu on WindowsNT control panel, select "Test" button to display
     with the previous resolution.


-------------- End of Release Note -------------------------------------------
