Chips and Technologies, Inc. 655XX Display Driver Package Windows 3.1/DOS Revision: Version 3.2.3 Release Date: November 01, 1999 ================================ NOTES - WINDOWS DRIVERS 1. These drivers support the linear frame buffer. Please note the following points regarding the Windows 3.1 linear drivers: Continued improvement in features and performance. One driver per color depth supports multi-spatial resolutions. Added pen compliance. PC Video aware. Supports DCI (primary surface). Supports panning if driver resolution is more than the display size of the panel. Supports display switching using a Control Panel Applet and/or with a hot key if the OEM BIOS meets the CHIPS specification for display switching. NOTE: Display switching is not allowed if Windowed VM has focus. WINMEM32.DLL needs to be present in the SYSTEM directory. These drivers cannot run in Windows standard mode (WIN/S or WIN/2). 2. The following list describes the Windows 3.1 driver filenames and resolutions: LINEAR4.DRV: 16 Color Multi Res, Pan, Pen, Big Cursor, Display Switch LINEAR8.DRV: 256 Color Multi Res, Pan, Pen, Big Cursor, Display Switch LINEAR16.DRV: 32K/64K Color Multi Res, Pan, Pen, Big Cursor, Display (65535/540 only) Switch LINEAR24.DRV: 16M Color Multi Res, Pan, Pen, Big Cursor, Display Switch (65540 only) The following drivers function with the F65545 only VIDGX4.DRV: 16 Color Multi Res, Pan, Pen, Big Cursor, Display Switch VIDGX8.DRV: 256 Color Multi Res, Pan, Pen, Big Cursor, Display Switch VIDGX16.DRV: 32K/64K Color Multi Res, Pan, Pen, Big Cursor, Display Switch VIDGX24.DRV: 16M Color Multi Res, Pan, Pen, Big Cursor, Display Switch 3. Some applications, such as CorelDraw, PhotoStyler and Fotoman, assume 16 color drivers are VGA planar drivers and renders the image in the planar format. These applications do not correctly interpret Plane and BitsPixel information returned by the driver, and are not displayed correctly in our 4bpp packed pixel driver (LINEAR4.DRV). The following table compares information returned by two different formats for 16 color drivers: VGA.DRV LINEAR4.DRV (Planar) (Packed) BitsPixel 1 4 Planes 4 1 Colors 16 16 4. CHIPS' driver implementation of the Ellipse and Round Rectangle function is different (one pixel off) from Microsoft's driver implementation. CHIPS' RoundRect driver implementation causes a problem where the bottom line disappears in TCALC.EXE of the ESS Audio card. To fix this problem, make the following change in the [DISPLAY] section of the SYSTEM.INI file: [DISPLAY] . . . RoundRect=0 ;disable round rectangle driver implementation Ellipse=0 ;disable ellipse driver implementation By default, the driver implementation for the Ellipse/RoundRect function is enabled. There will be some impact on performance by disabling the Ellipse/RoundRect driver implementation. 5. The following anomalies exist with drivers in the industry other than CHIPS drivers: Windows 3.1 MPLAYER.EXE has a problem when displaying HELP with high color and true color drivers. This problem is fixed in Windows 3.11 MPLAYER.EXE. Windows 3.1 Paintbrush has a problem with a black box appearing when pasting a DIB and immediately flipping the object horizontally. This problem is in the GDI and appears in most 256 color drivers. Windows 3.1 Paintbrush has a problem with low memory when printing a color image in high color drivers. This image is successfully printed by doing a cut-and- paste to Word for Windows. Windows 3.1 HELP screen has a problem with text appearing dark (black) instead of green in high color drivers. Windows 3.1 DCT ROP3 test has a problem with the 32k color(15bpp) driver. This problem occurs with other 32k color drivers. The TDW(Turbo Debugger) in Turbo C++ for Japanese Windows 3.1 causes an error which states "Illegal Video Mode". Quick Recorder (Video for Windows) has a problem displaying small fonts in high & true color drivers. The application does not allocate sufficient memory for the small font, but it successfully displays large fonts. CHIPS CONFIDENTIAL INFORMATIONDownload 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.