EDID. What is it and what is it used for?
Under normal circumstances, a source device (digital and analog) will require
information from a connected device/display to know what resolutions and
features are available. The source can then cater its output to send only
resolutions and features that are compatible with the attached device/display.
This information is called EDID (Extended Display Information Data)
and a source device can only accept and read one EDID from a connected
device/display. Likewise, the source can only output one resolution to a
connected device/display.
Why is EDID so important with the HDMI Matrix?
The Matrix is a complex piece of technology that replicates and switches
between multiple inputs and outputs. Each connected source device will require
one EDID to read. EDID management is carefully handled by the HDMI Matrix to
provide a single EDID for each source to read.
What options do I have to manage the EDID in the HDMI Matrix?
First, it is important to note that each source device can only output one
video/audio signal type. This includes resolutions and timings. When multiple
devices/displays are used, such as with the HDMI Matrix, it is important to use
devices/displays that have similar or compatible resolutions/features. This will
ensure that the single video/audio signal produced by the source device is
accepted by all of the connected output devices/displays. The user has the
option, through the EDID management window, to choose how the unit will
manage the EDID from multiple HDMI devices/displays. Therefore, the user has
some control over the resolutions/features that the source devices will output.
The HDMI Matrix has multiple EDID management modes that will control how
the EDID information from multiple devices/displays are combined, ignored, and
routed.
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