Setting resolution of external monitor

[Oliver Block]

Dear Éric,

On Wed, May 20, 2009 at 11:49:30AM +0200, Éric Piel wrote:
[...]
> From what I understand you want "panning". I would do it with this command:
> xrandr  --output PANEL --mode 1680x1050 --panning 1920x1080
I cannot try this actually, since I only have xrandr 1.2
 
> However, it requires xrandr 1.3, I don't know if your driver has already
>  support for this new version.
I an not really sure what panning means. Would this mean that the laptop
panel would display the part of the screen where the mouse moves (like
if it would be virtual) and the external monitor would display the whole
screen in 1920x1080? This would be okay, but if the laptop would display
a fixed area of the screen it would also be okay. Mainly I want that the
external screen runs at 1920x1080 and I do not know how to do this,
since xrandr does not list this mode.

Kind regards,
Oliver