I am also using a notebook with an external screen when i am at home.
Till today I was not able to configure it correctly and comfortable.
(Tried with radeon and fglrx driver)

My wonderful working solution is One computer for every screen. :))
Connect all them with synergy and it seems to be one computer! :)

I am running a synergy setup with gentoo, mint, osx and windows8 and it
is much better than every multi monitor solution.

I know this is more a workaround as a solution, but multi monitor with
linux is crap, and synergy is a wonderful tool! :)))

On 10/25/2012 02:42 PM, Kfir Lavi 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