Datapath X4, User Manual, Page: 21 / 28

21 18/10/2010
Predifined Regions
For ease of use, there are preset buttons to select the two most popular configurations:
Quarter or Replicate .
•
Quarter
The first monitor displays the top left hand corner of the input image, the second
monitor the top right, the third the bottom left etc. This mode of operation can be
used to drive four monitors in a 2x2 arrangement from a single high resolution input.
•
Replicate
Each output displays the entire input image. The output monitors can be driven at the
same resolution (with different timings if necessary) or a higher resolution.
There are no restrictions (other than the resulting scale factor must be 1:1 or upscale) in the
region settings, so it is possible to have regions overlapping, or to program in gaps etc.
Additionally each region can have a transform such as rotation or flipping applied to it (after
cropping) in order to support different output monitor orientations.
Please note that there may be instances where a setting stored in non-volatile memory which
was valid when it was stored (ie the scale factors from input to output were 1:1 or greater)
may subsequently require down-scaling if the resolution of the input increases. In this case
the firmware will adjust the scaling factors to give a 1:1 crop of the input, centred on the
original region. In order to signal that at least one output is no longer exactly honouring the
programmed region setting, the front panel status light will not be illuminated.
All modifications to the Region settings can be save as a .vqs file, removing the requirement
to input the same settings again. To save the settings select the Save… command in the File
menu. To open a saved .vqs file select the Open… command.
Monitor Outputs
The Monitor Outputs group shows the actual resolution and refresh rate that each of the four
x4 outputs is currently providing. To see more information such as whether this is an analog
RGB or DVI mode, if it is the monitor EDID preferred mode or a default mode programmed
into the x4, along with detailed timing information, click on the
Modify button for the required
output.
The genlock status is indicated by the small coloured squares:
•
Green
The outputs are genlocked to a common reference clock, and the Vsync of the first
monitor. If the Input genlock light is green (see above), then the reference clock is
taken from the input DVI source, and the system is fully genlocked to this source. If
the input genlock indicator is red, then the outputs are genlocked together, but are not
related to the input sync.
•
Red
The outputs are NOT genlocked