Extron electronic Multi-Graphic Processor MGP 464 DI - Manual (Page 126)

Special Applications, cont’d
PRELIMINAR
Y
MGP 464 • Special Applications 6-8
3 . Configure the output as follows:
a
. Set the output resolution/refresh rate of the first MGP (the unit farthest
from the display) to your output display’s native rate.
N Do not set this unit to the DVI background rate.
b . Set the output rates of the second and, if appropriate, the third MGP to
“DVI Background Rate.” This setting uses the incoming DVI resolution
and pixel clock as the output rate of the MGPs, which is essential in order
to avoid any sampling of the incoming DVI signal.
N By default, the resolution provided in the Extended Display Identification
Data (EDID) is the last selected factory rate. To manually set the resolution
information provided in the EDID data, see the Set EDID information SIS
command on page 4-9.
c . If it has not yet been selected, set the background of the second and third
MGPs to “DVI Background.” When you do this, these two units set their
output rates to the DVI background rate.
N The DVI background rate remains in effect, even when the background
is not set for DVI Background. This prevents any image scrambling
on the display when the system is switching between the DVI
background source and other background images or colors.
4. Configure the windows on all the MGPs as follows:
a
. Mute the windows on the second and third MGPs to view the windows
on the first MGP only.
b . Set the size and position of the four windows on the first MGP, either
manually or by selecting a window preset.
c . Save the configuration for the first MGP as a window preset, for future
use.
d . Unmute the windows for the second MGP in the chain and configure
them as desired. Save this window configuration as a preset.
N The default presets provided with the MGP have no background
selected. For the second and third MGPs in the chain, you must select
“DVI background” as the background.
e . Repeat step d for the third MGP if appropriate.
N It is recommended that you save the window configurations on the
second and third MGPs with the same preset number. This is required
if you are using the Preset Selector software for both MGPs, because
the Preset Selector recalls the same preset number for all MGPs that
have been added to it.
Refer to the Windows-based control software help file for information on
using the Preset Selector.