Re: multiple monitors

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Simon Bennett (simonb++at++wormald.com.au)
Sat, 20 Jan 1996 10:21:39 +1100 (EST)


On Thu, 18 Jan 1996, AnitaKishore wrote:

> Is it possible to have multiple monitors attached to a single-pipe
> Onyx?

Yes.

> We have a main performer application in one window and an Inventor/Motif based
> user Interface in another, both running from the same parent process.
> We want to run these two on two different
> monitors attached to the same Onyx. Is this possible or do we need additional
> hardware? If so, what? Do we need MCO for this setup?

An MCO will do what you want. It's really just a video splitter (in
fact the ID string in it's VME address space is "vs2" for video
splitter 2 - I believe that the MCO like device for the Crimson or
something was called simply "Video Splitter".)

The MCO just takes rectangles of the framebuffer and outputs them to
different video devices. The MCO is either on or off. For example if
you've got 2 monitor attached to your MCO and a "normal" 21" monitor
attached to your DG2 (for say, development). When you switch from
1280x1024 x1 to two of these displays on your MCO, the main display
will go dark. BTW - you'll need 4 RM's to get any sort of
multi-sampling for 2x 1280_x1024 screens. In addition, separate MCO
displays remain as the same X screen, as the pipe from which they were
spawned, so you can't think of them as say, :0.0 and :0.1

+----------------------------------------------------------------------------+
  Simon Bennett simonb++at++wormald.com.au
  Wormald Technology Advanced Systems Engineering Ph: +61 2 9981 0611 (x512)

          Meeting - an event where you take minutes and waste hours.


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