S3 86C805 Flat Memory Model Windows 3.1 Driver 2.4B8 Build Date: July 12, 1994 1. This is a release for the S3 86C805 product. 2. The following switches are available for the OEM in the Display section of the SYSTEM.INI file: POLYGON-SUPPORT=[ON|OFF] Up to 400 vertices are supported if the profile string is enabled for polygon support. The default setting is ON. ELLIPSE-SUPPORT=[ON|OFF] Ellipse and Circle Output - The default value is ON. Support consists of Diameters between 2 and 2048 pixels and solid or hollow brushes. TEXTRMW=[0|1] Sets read modify write cycle to fast for text. The default value is 0. FASTMMIO=[ON|OFF] Set to ON for antivirus programs. The default value is OFF. WIN32-INSTALLED=[ON|OFF] Provides compatibility with win32s environment. The default is ON. 3. The following resolutions are supported: BIOS Pixel No. Memory Font Refresh Mode Resolution Colors Required Type Rates 201 640x480 256 0.5MB Fixed 60, 72 110,301 640x480 32768 1MB Fixed 60 111,211 640x480 65536 1MB Fixed 60 212 640x480 16.7M 1MB Fixed 60 202 800x600 16 0.5MB Large/Small 56, 60, 72 203 800x600 256 0.5MB Large/Small 56, 60, 72 113 800x600 32768 1MB Large/Small 60 114 800x600 65536 1MB Large/Small 60 204 1024x768 16 0.5MB Large/Small 43, 60, 70 205 1024x768 256 1MB Large/Small 43, 60, 70 116 1024x768 32768 2MB Large/Small 60 117 1024x768 65536 2MB Large/Small 43 208 1280x1024 16 1MB Large/Small 45, 60 107 1280x1024 256 2MB Large/Small 45, 60 Driver Limitations: Some of these bugs are considered to be a limitation with the application. 640x480x24bpp only (1MB) DCT Disptest: When prompted to change from full to windowed screen the windowed session displays the wrong color screen. For example, a blue instead of white text is displayed in the first windowed screen. In the upper left corner the background color should be black instead of blue. Windows 3.1 & MS DOS Shell: Enter "dir a:" in windows DOS box, it goes to full screen and large flickering letters appear. Enter "a" and Alt-Tab back to program manager to return to normal. 4bpp modes only PhotoShop 2.5: 24-bpp bitmaps display multiple vertical images. Happen in all 4bpp modes. 1280x1024 and 1600x1200 Corel Draw 5.0 1280x1024x4bpp & 8bpp: A few pixels are displayed moving solid filled objects around the draw area. Windows 3.1 - Calendar: A blank window displays after maximizing and reducing the Calendar window. Happens with the 1280x1024 and 1600x1200 modes at all color depth. All Resolutions Harvard Graphics 1.0: After switching the print layout from landscape to portrait, vertical stripes may on the print out of a document containing a patterned object. For example, printing a document that has a circle filled with a hash pattern. Video for Windows 1.1: Moving Video for Windows playback screen window around leaves broken lines on the desktop when DCI support is enabled. Lotus AMI PRO 3.0: Printing to HP 560C printer will printout chopped off text.