[Nouveau] How to set a different resolution?

[Stephane Marchesin]

On Tue, Sep 30, 2008 at 11:19 PM, Tomasz Chmielewski <mangoo at wpkg.org> wrote:
> I just gave nouveau a try and was surprised that it just works out of
> the box on Mandriva. Great work!
>
> However, I'm not sure how to set up a different resolution properly.
>
> With the closed nvidia driver, I usually just click on krandrtray in KDE
> and pick a different resolution.
>
> With nouveau driver, though, it works as well, but only partially.
>
> I can see the resolution is theoretically changed (fonts, windows are
> bigger when I change from 1280x1024 to 1024x768), but technically, in my
> LCD monitor info I can see the resolution is still 1280x1024. Why?
>
> Because of this issue, I can't use my beamer (dual-head), which only
> supports resolutions up to 1024x768.
>

Type "xrandr" to list the available resolutions. Then xrandr -s [the
number of my favourite resolution in the list].

For further information look there:
http://intellinuxgraphics.org/dualhead.html
(or any xrandr 1.2 tutorial for that matter).

Stephane