I N T R O D U C T I O N
EDID Control
350-10035-01 v4.1.1
Linx DVI Matrix Switchers User’s Guide
4
RGB
Figure 1-1
Selecting EDID
1.5.1
EDID Registers
There are three EDID registers within the
Linx DVI Switcher
:
■
Pass Through EDID
- Contains EDID passed through from the display device in real
time. The contents of the display register may be saved as an entry in the EDID list.
■
Emulated EDID
- Contains EDID assigned to each output selected from the EDID list.
■
Fixed EDID
- Contains fixed EDID for each input selected from the EDID list and when
selected is continuously supplied to the graphics source connected to that input.
The factory EDID’s default preferred resolution is 1920 x 1200 at a frame rate of 59.95 Hz.
This value is restored when EDID is captured on a port with no output device connected.
EDID I/F
User selected from
EDID timing table
EDID I/F
Emulated
EDID
Display
EDID
Output 1
Output 32
Fixed
EDID
Emulated
EDID
Pass
Through
EDID
Static
EDID
Input 1
Input 32
Fixed
EDID
Static
EDID
User selected from
EDID timing table
User selected from
EDID timing table
User selected from
EDID timing table
Input EDID
Priority
Arbitration
Input #1
EDID
Input #32
EDID
Output #1
EDID
Output #32
EDID
EDID data for
input #1 is
stored here
EDID data for
input #32 is
stored here
In
Emulated Mode
, a user-
selected EDID is assigned to an
output channel. Different than
Fixed Mode
, the EDID read by
the graphics card changes along
with the routing assignment.
In
Fixed Mode
, a user-selected
EDID is assigned to an input
channel. This provides a static
EDID to the graphics card,
independent of switcher signals,
avoiding Hot-Plug event induced
shut-downs.
In
Pass Through
Mode,
EDID from the display
device is passed through
the switch in real-time.
Linx Switcher
Priority Arbitration
allows user
selection of one display’s
EDID when a signal is sent to
multiple displays. Priority can
be based on switcher output
number or signal resolution.