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.backup'
New X configuration file written to '/etc/X11/xorg.conf'