DVIGear DVI-5314b - Manual (Page 8)

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5 .1 EDID Management
EDID (Extended Display Identification Data) is a collection of data cached inside
all modern displays that describes the unit’s capabilities. The EDID information
is defined by a standard published by the VESA (Video Electronics Standards
Association) and includes information such as the manufacture’s name, model
number, supported resolutions and video timings, supported audio formats, color
space, etc. During boot-up, a source device must be able to read the EDID of the
connected display. When using a splitter, it is necessary that the EDID from one
of the connected displays is passed back to the source device. The EDID value
used is critical to the performance of the system as a whole.
On the front of the unit there is an EDID selection switch. This switch controls
what EDID information the splitter will report to the source device. The EDID
information provided to the source can either be EDID from one of the connected
displays (
AUTO EDID Mode) or from an on-board memory chip that contains a
library of the most commonly used resolutions ( INT EDID Mode). These internally
stored resolutions are listed in the table below.
Resolution
Vertical Rate
(Hz)
Scan Format
480p 720x480 60 Progressive
576p 720x576 50 Progressive
720p 1280x720 50,60 Progressive
1080i 1920x1080 50,60 Interlaced
1080p 1920x1080 50,60 Progressive
VGA 640x480 60 Progressive
SVGA 800x600 60 Progressive
XGA 1024x768 60 Progressive
SXGA 1280x1024 60 Progressive
UXGA 1600x1200 60 Progressive
WXGA 1280x800 60 Progressive
WXGA+ 1440x900 60 Progressive
WSXGA+ 1680x1050 60 Progressive
WUXGA 1920x1200 60 Progressive
When set to the AUTO position, the splitter will automatically discover and apply
the EDID based on a predetermined selection hierarchy as follows:
HDMI v1 .3 HDMI v1 .2 DVI
When the splitter powers ON, it automatically begins the EDID discovery process
by sequentially scanning the connected displays on all outputs, starting with