[ltp] switch between clone mode and second screen

Osho GG linux-thinkpad@linux-thinkpad.org
Wed, 9 Feb 2005 15:54:49 -0800


On Wednesday 09 February 2005 11:34 am, Alex Deucher wrote:
> On Wed, 09 Feb 2005 20:30:06 +0100, Ulrich Kuehn <ukuehn@acm.org> wrote:
> > Hi,
> >
> > I am just wondering if there is a way to switch the external DAC output
> > between clone mode and a second, independent screen.
> >
> > My reasoning is as follows: I have a 17" monitor with 1280x1024
> > resolution which I would like to use in addition to the internal
> > display. Using the ServerLayout section in XF86Config works fine here.
> >
> > But for giving presentations on a typical beamer, the resolution is just
> > too high, usual is 1024x768; furthermore I like to see what's beamed to
> > the wall. So the clone mode is the method of choice here.
> >
> > Is there a tool that allows to switch between both modes without
> > restarting X? I am aware that only the internal display would probably
> > be cloned, not the external.
> >
> > Can someone give me hint with this issue?
>
> If you are using a radeon, take a look at MergedFB.  It should do what you
> want.
>

I think it is not possible to do what you want without having to restart X.

I thought MergedFB would just clone the same display on internal and external 
screen. Isn't that correct?

-- 
Osho