Ubuntu Nvidia-setting Trick

If you had a problem with NVIDIA-SETTING, and the error sez:

"Failed to parse existing X config file ‘/etc/X11/xorg.conf"

you should do this. beneran.. sweer deh...!!! gak perlu ribet2 nyalahin driver..

replace it with

"sudo nvidia-xconfig"

This will back it up and then recreate it. Seems a fresh install of Karmic Koala 9.10 doesn’t create a valid xorg.conf or it can’t parse it. Whatever the case, that’s the fix.

Then you can

"sudo nvidia-settings"

To change and save your settings.

thanks to : source