Using X configuration file: "/etc/X11/xorg.conf".

WARNING: Unable to find CorePointer in X configuration; attempting to add new
         CorePointer section.


WARNING: The CorePointer device was not specified explicitly in the layout;
         using the first mouse device.


WARNING: Unable to find CoreKeyboard in X configuration; attempting to add new
         CoreKeyboard section.


WARNING: The CoreKeyboard device was not specified explicitly in the layout;
         using the first keyboard device.

Backed up file '/etc/X11/xorg.conf' as
'/etc/X11/xorg.conf.nvidia-xconfig-original'
Backed up file '/etc/X11/xorg.conf' as '/etc/X11/xorg.conf.backup'
New X configuration file written to '/etc/X11/xorg.conf'