Proper configuration for dual-headed nVidia 7800GT

Robert Noland rnoland at FreeBSD.org
Thu Apr 2 01:06:48 PDT 2009


On Wed, 2009-04-01 at 15:56 -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.

So, the first question is which driver are you using nv, nouveau, or the
blob?

robert.

-- 
Robert Noland <rnoland at FreeBSD.org>
FreeBSD
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