Appendix E - Edid Programmer; Edid Overview - AMX Optima Instruction Manual

Appendix E – EDID Programmer
Applicability
EDID Programmer software is provided for re-programming the EDID EEPROM chips on the following
boards if necessary:
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This software is available at www.amx.com.
Note: The Optima 4x4 DVI board (FG1046-479) does not currently support the EDID Programmer.

EDID Overview

EDID (Extended Display Identification Data) is a data structure established by the Video Electronics
Standards Association (VESA) to enable plug-and-play support by enabling easy configuration of a
computer's graphics subsystem based on the capabilities of the attached display device.
EDID information includes items such as the following:
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When a computer is directly connected to a display device, it can use the display device's EDID
information to determine an initial compatible video signal to send. With the computer's display
controls, the user can modify this selection to another compatible signal based on the provided EDID
information.
With High-Definition Multimedia Interface (HDMI) (which requires EDID on the display devices) using
EDID information has extended beyond computers to other source devices, such as DVD players. As
long as the source device sends a compatible signal, the plug-and-play feature will work.
Note: The DVI board does not support HDCP required compliant signals.
Matrix Switchers and EDID
Matrix switchers, such as the Optima, provide the ability to route one source signal to many potentially
different types of display devices. As long as the source signal being routed is supported by all of the
display devices, the result would be a good image on each display. If the source signal being routed is not
supported by a display device, the result would be either a badly distorted image or no image at all.
To address these issues, the Optima 8x8 DVI board and Optima 8x8 HDMI board come with one EDID
EEPROM chip per input connector, which has been pre-loaded with an AMX AutoPatch EDID set. This
EDID set consists of some of the most common EDID settings in use today, including VESA Established
Timings encompassing 8 resolutions at a variety of refresh rates and 8 additional Standard Timings
encompassing 8 resolutions and refresh rate combinations (for DVI timing details, see page 65 and
page 67; for HDMI, see page 73). In many cases, the matrix switcher can be used straight out of the box
with no adjustments (see "Determining the Need for EDID Programming" on page 158).
Optima Instruction Manual
8x8 DVI board (FG1046-659)
8x8 HDMI board (FG1046-614)
Manufacturer's name
Product type
Supported video resolutions and refresh rates
Color space and filter chromaticity
Detailed timing
Appendix E – EDID Programmer
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