TITLE
    STB Pegasus OPENSTEP Driver Overview
Article ID:
Created:
Modified: 		72412
12/19/98
12/19/98
TOPIC

    This article discusses a device driver for the OPENSTEP Mach operating system, versions 4.0 through 4.2.

DISCUSSION

    Driver: STB Pegasus
    Last Update: December 18, 1997

    Availability Information

    A version of this driver is on the OPENSTEP CD-ROM
    No updated versions of this driver are available

    Driver Name / Installer .pkg: PegasusDisplayDriver
    Driver Type: Display
    Driver Scope: Product Family
    Supported Components: AT&T ATT20C505 RAMDAC, Brooktree Bt485A RAMDAC, S3 928
    PC Bus / Interface Supported by Driver*: VL-Bus

    General Overview notes: The STB Pegasus-VL graphics driver is designed to support the VL-Bus version of the Pegasus graphics adapter from STB. This card uses the S3-928 graphics controller and supports 1MB,2MB or 4MB of video frame buffer. This version of the driver only supports1MB, 2MB or 4MB of VRAM.

    Supported Products / Add-on Adapters:
    STB Pegasus (VL-Bus, 4MB VRAM)
    STB Pegasus (VL-Bus, 2MB VRAM)

    Special Features of Driver / Driver Notes:
    This device driver provides information in the Configure application's help panel. Choose Info>Help from the Configure menu and scroll down to find this device driver's help topic.

    Display Driver Details

    Supported Connectors: 15-pin High Density (VGA)
    Access Mode: Linear Framebuffer
    Adapter Memory: 2MB VRAM, 4MB VRAM

    Display Modes (Number in () after resolution indicates frame buffer size required)

    32 Bit Color Modes*:
    1024x768 (4MB+), 640x480 (2MB+), 800x600 (2MB+)

    16 Bit Color Modes*:
    1024x768 (2MB+), 1152X819 (4MB+), 1280x1024 (4MB+), 1600x1200 (4MB+), 640x480 (1MB+), 800x600 (1MB+)

    8 Bit Color / Greyscale Modes*:
    1024x768 (1MB+), 1152X819 (1MB+), 1280x1024 (2MB+), 800x600 (1MB+)

    Known Problems

    PCI Versions of the STB Pegasus are not supported

    Driver Version Notes

    3.30 - Shipped with NS3.3 - based on interpreted IOVP code
    3.31 - Total re-write in ObjC - 8 bit color modes added
    4.00 - Released on OPENSTEP 4.0 User CD-ROM

    * - Indicates information that is inclusive of the entire capability of this driver. Not all devices supported by this driver may include all features listed.

    Product Vendor
    STB Systems
    1651 North Glennville, Suit 210
    Richardson, TX 75081
    (214) 234-8750

Document Information
Product Area: Apple Software
Category: OPENSTEP
Sub Category: Drivers
Keywords:

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