No MergedXinerama for xrandr

[Alex Deucher]

On Sun, May 31, 2009 at 6:49 PM, Quinn Harris <quinn at qutek.net> wrote:
> Before many video drivers changed from MergedFB to xrandr 1.2 for a dual head
> video card they had an option like "NoMergedXinerama"
> for the Radeon driver that would make the two screens appear as one to the
> window manager.  Does a similar option exist somewhere now
> with xrandr 1.3?  Is there a way to completely disable a window managers
> awareness of multiple screens?
>
> I have a Viewsonic VP2290b that needs to be driven by two DVI ports to run at
> full resolution at a usable refresh rate (24hz).  But I
> don't want the desktop (KDE 4.2) to treat the single monitor like two in any
> way.

It's all handled in the common xserver code now for xrandr 1.2 rather
than in the drivers.  Your best bet is probably to turn off xinerama
support in your window manager.

Alex