Thanks very much for your help.

I have managed to resolve this by running sudo gnome-display-properties on
the command prompt and un-checking the "Mirror screens" check box and
clicking "Apply" button.


So why did this not work via System -> Preferences -> Display ?  Could it a
permission problem as on the command prompt, I ran it with sudo.

Puvi

2009/7/21 ritz <[email protected]>

> Hi
>
> On Tue, 2009-07-21 at 09:04 +0100, Puvi Ganeshar wrote:
> > Hello All,
> >
> > I am trying to get dual monitors (2 identical HP L1940T) working on my
> > machine but I am not having any luch at all.
> >
> > I am not having the 2 screens as one virtual screen as it's mirroring
> > one other currently.
> >
> > I go to System -> Preferences -> Display, I can see the "Mirror
> > screens" check box checked.  So I uncheck this box and click Apply,
> > then I get a pop-up saying
> > "Monitor Resolution Settings has detected that the virtual resolution
> > must be set in your configuration file in order to apply your
> > settings.
> >
> > Would you like Screen Resolution to set the virtual resolution for
> > you? (Recommended"
> >
> > When I answer "Yes" to this and get the following error:
> >
> > "Your settings cannot be applied because the virtual resolution is not
> > big enough to contain your screens"
> >
> > So I am really stuck at this point so I turned to Google for help and
> > found there are couple of people had the same problem but
> > unfortunately the found no resolution.
>
> <snip/>
> This is not a issue with gnome, but rather with Xorg. Update
> "/etc/X11/xorg.conf" file to reflect as shown below
>
> Section "Screen"
>        Identifier "Screen0"
>        Device     "Card0"
>        Monitor    "Monitor0"
>        SubSection "Display"
>                Viewport   0 0
>                Depth     24
>                Virtual   3200 1500
>        EndSubSection
> EndSection
>
> Try sending in a talking to your distribution
> "list" ( fedora-list/ubuntu forums/... ) .
>
> --
> Ritesh Khadgaray
> Linux and Desktop
> Ph: +919970164885
> blog: http://khadgaray.blogspot.com
> Eat Right, Exercise, Die Anyway.
>
>


-- 
~Puvi
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