Re: Getting dual monitors to work on Gnome 2.26.1

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.


ritz wrote:

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

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.

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

Try sending in a talking to your distribution
"list" ( fedora-list/ubuntu forums/... ) .

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