Yep, that was the trouble. I nedded the linux-restricted-modules and just installed the Nvidia 100.14.11 driver just following the instructions from the driver itself, a few nvidia-settings config and voila! The nvidia driver is working fine!
The funny thing is that everyone is saying "No nvidia anything on adept must be installed" so I uninstalled the nvidia-kernel-common, but I didnt notice the linux-restricted-modules was taken with it
. So I installed again the linux-restricted-modules (and the nvidia-kernel-common came along).
Thanks to all of you people!