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I have been following this Tutorial to get dual monitors working on my box

It works! However, when ever I move a window, the redraw of that window takes 3-8 seconds. Even moving the window takes the same amount of time

Is this being done in software rather than the nVidea hardware? The windows themselves do not respond.

I have seen a few old threads but no relevant fixes - If anyone could suggest a fix I would very much appreciate it.

I have tried:

sudo nvidea-xconfig
sudo nvidia-settings

Then configure TwinView go to save the config... and the error unable to parse xorg.conf file and the error in the console

VALIDATION ERROR: Data incomplete in file /etc/X11/xorg.conf. 
Undefined Device "null" referenced by Screen "Configured Screen Device"

Segmentation fault
share|improve this question

run glxinfo and locate this line

"OpenGL renderer string: "

if it says Mesa then it's software rendering

did you install the proprietary driver for nvidia? if you go System -> Administration -> Hardware Drivers does it list your card in the dialog?

share|improve this answer
Yes i did - im using version 173 of the nVidea drivers. I am having problems writing to the xorg.conf = keeps saying error parsing file... very painful – Spasm Nov 9 '09 at 7:55
Ps the renderer string is Quadro NVS 280 PCI – Spasm Nov 9 '09 at 10:49

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