Re: Two Displays

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Axel Sammet (axel++at++luca.hannover.sgi.com)
Fri, 25 Jul 1997 09:33:38 +0000

On Jul 24, 20:07, Joaquin Casillas Melendez wrote:
> Subject: Two Displays
> Hello all.
>
> I'm working with a Onyx2 Reality and I want to do some performer stuff
> with two displays. I've attached an additional keyboard and mouse to the
> secondary connectors of the Onyx2. I want independent input with
> each display, in order to get two persons working at the same time in
> different screens and X sessions. Later, I will try to use the two
> displays from performer.
Joaquin

a single pipe onyx2(reality or ir) will not support two keyboards. each
keyboard is linked to one pipe, thus making it neccessary to have two pipes
for two keyboards to work. you can hook up a separate terminal to one of
the serial ports for non-gfx input to an application running on the second
display.

>
> The problem is that the second monitor screen remains black, and anything
> happens at all. I have tried ircombine, and I've been able to show the
> same channel in the two monitors, but not two channels in each monitor.

if the managed area is limited to the size of one channel(e.g. 1280x1024)
ircombine won't let you arrange the channels side by side. choose "edit
globals" to set the managed area to 2560x1024 and then set the origin of
the second channel to 1280,0. However if your Onyx2 Reality has only one
RM, you will probably not be able to accomplish this due to limited
framebuffer memory. you need to switch to lower resolution/channel.

displaying two channels on each monitor will not work cause a channel is
always equivalent to one physical video output. you should display two
viewports in the channel. that should do the job.

Axel

>
> Any help about setting up the system would be appreciated.
> Thanks.
>
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> _/ Joaquin Casillas | email: jcasilla++at++glup.eleinf.uv.es
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>-- End of excerpt from Joaquin Casillas Melendez

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