Chips and Technologies, Inc.
Release Notes
655XX Display Driver Package
Windows NT 3.5x
Revision: 3.2.3
Release Date: January 15, 1995
===============================
1. Modified the driver to correctly detect a change from a Chips
VGA Controller to a non-Chips VGA Controller.
2. Fixed a hang problem with the MSDOS Prompt in F65535 and
F65540.
3. Separated the drivers into two sections: BLTer Drivers
(supports 64300/64310/65545/65548) and Non-BLTer Drivers
(supports 64200/65510/65520/65530/65535/65540).
Revision: 3.2.1
Release Date: August 25, 1995
=================================
1. Modified the driver to set the refresh rate as "hardware
default" in the 640x480x24bpp (mode 50h) for the 65545
controller. Earlier, the refresh rate was shown as 60Hz.
2. Fixed a hang problem with the 655xx PCI controllers.
3. Fixed a cursor garbage problem in 512K VRAM systems.
Revision: 3.2.0
Release Date: May 31, 1995
===============================
1. Added support for BitBlt acceleration.
2. Added support for the Hardware Cursor.
Revision: 3.1.7
Release Date: April 17, 1995
================================
1. Added support for 1024x768x256 colors, 640x480x64K colors and
640x480x16M colors.
2. Added support for the panning feature.
NOTES: - WINDOWS NT DRIVERS
1. In the 800x600 and 1024x768 resolutions, the screen image is
not displayed correctly on a CRT screen when the screen is
panned to the bottom of the display and the user switches
the display from LCD to CRT.
The Windows driver uses the Check_Cursor and Move_Cursor
routines to adjust the screen for panning. There is no
routine similar to Check_Cursor in Windows NT.
This limitation is caused by the absence of Check_Cursor
routine in Windows NT.
This problem is fixed as soon as the user touches the mouse
pointer.
2. When any of the selections in the "CURSORS" Applet from the
Control Panel is chosen, the cursor becomes a software
cursor and hence there is no panning.
This is a limitation of the software cursor in Windows NT.
CHIPS CONFIDENTIAL INFORMATION
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.