Fix Sleep on Sierra

Hi,

I have problems with the sleep option in OS X Sierra. The monitor turns off and the system is up and running and if I click the mouse the monitor wakes up. No panic no nothing.

How can I fix it ?

Mobo: Gigabyte B85M-D2V
CPU: Intel Pentium G3220 (using fake CPU ID for Intel Core i5)
GPU: NVIDIA GeForce 210 1 GB with UEFI GOP
RAM: Kingston 8GB
SSD: Kingston V300 60 GB