[ltp] Fglrx big desktop mode

[paquita]

Alex Deucher wrote:
>
> I'm not familiar with fglrx, but with the opensouce radeon driver you
> can use mergedfb and set the "MergedNonRectangular" option to true.
> that optin will lock the viewports and provide you with a mixed mode
> non-rectangular dualhead desktop.  As for metamodes some thing like
> "1600x1200-1280x1024" should do what you want.  See the radeon man
> page for more info.
Thanks to you and Simon! I played with mergedfb and I've got it right now.

Paquita