Proper configuration for dual-headed nVidia 7800GT

[Kevin Oberman]

> Date: Thu, 2 Apr 2009 11:26:37 +0800
> From: "Wilkinson, Alex" <alex.wilkinson at dsto.defence.gov.au>
> Sender: owner-freebsd-x11 at freebsd.org
> 
> 
>     0n Wed, Apr 01, 2009 at 03:56:45PM -0700, Kevin Oberman wrote: 
> 
>     >I have been unable to get both heads of my nVidia 7800GT to work. I
>     >start with the output of 'Xorg --configure' and add the second Monitor
>     >and a display set for a 2560x1024 display. I get the proper display on
>     >one monitor and the other just displays "Cannot Display This Video
>     >Mode".
>     >
>     >I add "Option Dualhead" and get no screens found. I added "Option
>     >FlatPanel" and got "Cannot Display This Video Mode" on BOTH screens.
>     >
>     >Can anyone give me a clue as to how to configure this for Xrandr
>     >operation? I'm sure I am missing something obvious.
>     >
>     >I should mention that the displays are LED panels, but they use VGA, not
>     >DVI connectors, so I have DVI to VGA adaptors on both ports. I can
>     >supply logs of the various configurations.
> 
> How about trying TwinView ?

I don't see TwinView as an option in the nv man page. Is it for the
nvidia-driver? I have not tried that. Since I don't need 3D or any
fancy capabilities, I figured that nv would do the trick.
-- 
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman at es.net			Phone: +1 510 486-8634
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