[R] Use of Second Monitor Question

Prof Brian Ripley ripley at stats.ox.ac.uk
Fri Aug 22 08:18:57 CEST 2003

On Thu, 21 Aug 2003, Duncan Murdoch wrote:

> On Thu, 21 Aug 2003 17:55:34 -0400, kjetil brinchmann halvorsen wrote:
> >On 21 Aug 2003 at 16:51, Uwe Ligges wrote:
> >
> >Slightly off-topic, but: we are about to buy a data show to put up 
> >permanent in an aula. All "data shows" I have seen use the monitor 
> >port directly, so the monitor is blacked out. Is it possible to have 
> >a set up where I can see both on the monitor and the audience the 
> >projection? From the answer to this Q, it seems that would work well 
> >with R. 
> Most reasonably new laptops allow the display to show in both places.
> (There may be limitations on the resolution to accommodate this.)  
> The original question was about showing different things on each
> monitor:  the console visible to the speaker, and graphics visible to
> the audience.  I don't know of any PC laptops that do this, but I
> think some Macs can.  At least that was my interpretation of a minor
> flap before a presentation at UWO where the projector showed the
> desktop and the laptop screen showed the stuff the audience was
> supposed to see.

All dual-headed graphics cards can do this: modern Mac laptops have 
Radeons, I believe, and PC laptops with the same hardware can do the same 
things.  My 2002 laptop with a Radeon M graphics card certainly can.

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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