Problem with xorg.conf always regenerate new one

[babuubabuu]

Hi, I have a problem with editing xorg.conf.
I notice that Linux Lite always regenerate the file every-time I restart my computer so problem is how can I enable coolbits? because it always delete

Code:

Option "Coolbits" "28"

every boot-up

I have tried edit the file manually and with this command

Code:

sudo nvidia-xconfig -a --cool-bits=31

but they don't work.