Datapath ImageDP4 User Manual page 16

When the TWIN tab is selected, the display driver reads the EDID information from each monitor and
reads the Registry to find detailed display timing information.
The Source of Mode group box shows which mode sources are available for the selected resolution and
colour depth.
The Source of Mode has 4 options.
Default
Monitor timing information from the display driver's internal tables.
Custom
Monitor timing information from the Registry. (See Appendix 1: Defining Custom Modes for details)
Monitor (Master)
Monitor timing information from the monitor attached to output 1 of the Master ImageDP4 is used for
all outputs.
Monitor (Each)
The monitor timing information from each monitor is used for the output connected to that monitor.
No. Screens
Change the number of screens the display driver uses. You should always install the driver (using install.
exe) for the maximum number of screens you want to use.
Screen Arrangement
Use the drop down menu to select the type of screen arrangement you require. The illustration in the
Monitor Configuration box will reflect your choice.
Force DVI Output
If set, Force DVI Output limits the display modes available to those displayable via Single-Link DVI
(165MHz).
If clear, this allows display modes greater than 165MHz, for example 2560x1600 @ 60Hz.
16