Do you have an nvidia video card? If so I would recommend running nvidia-setting to configure your displays. This is what I use after trying {a,x,g}randr. I found it a little easier to use with an on-screen view of how my monitors would display. Look under the "X Server Display Configuration" section. It should be fairly easy to set up. I launch it from my startup file because writing out the config to xorg.conf after I change my display layout doesnt succeed for reasons i cant remember.

On Thu, Oct 25, 2012 at 9:08 AM, Kfir Lavi <lavi.kfir@gmail.com> wrote:

Thanks for your reply.
This program does just what xrandr does.
I didn't find a way to separate screens. It seems to define by default a virtual workspace, and let you just put both screens in this virtual workspace.
The command at the bottom of this mail does just that.

I want that the monitors will not show the same workspace. Both should show different desktops.
It is like running xorg twice.

Kfir

On Thu, Oct 25, 2012 at 2:48 PM, Antonio Paiva <arpaiva@cnel.ufl.edu> wrote:

Try arandr.
I have the same setup and arandr does the job perfectly. Moreover, it
saves the settings as script that you can call upon boot.

Regards,
Antonio

On Thu, Oct 25, 2012 at 7:42 AM, Kfir Lavi <lavi.kfir@gmail.com> wrote:
> Hi,
> I have a laptop and an external monitor.
> I would like to have both monitors showing different desktops.
> My aim is to have IRC and Email client on one side, and my shell and
> programming stuff on the other side.
> Currently I managed to do a big virtual workspace with XRANDR, but it
> stretches the browser and it is hard to setup correctly.
> I'm a Fluxbox user, and didn't find a way to define that starching the
> window, will not stretch outside of the monitor I'm on.
> This is why I would like each monitor have it's own desktop.
>
> Thanks,
> Kfir
>
> virtual dual monitors:
> xrandr --output LVDS1 --primary --mode 1280x800 --pos 0x0 --auto --output
> VGA1 --mode 1920x1080 --pos 448x0 --primary
>

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