this is a continuation of this problem from this link . So after I thought was a successfull installation of ubuntu gnome 16.04.4 dual boot with windows 10 pro, I thought that was the last of problem.
I had to install CUDA and cuDNN on my computer for some deep learning application, thus requiring nvidia proprietary drivers running for the GPU. So I decided to change the additional driver from the default option to using the nvidia driver (nvidia 384.111) . I reboot and went to this blank screen.