[ubuntu] Nvidia 367 driver on ubuntu 16.04.

hi dear.
i have installed 367 nvidia driver.
When i play dota2 with vulkan. it is very smoothly.
But when i change to intel graphical card by using nvidia-setting and after re-login.
The nvidia card can not shutdown its power.

koskers@koskers-w35xstq-370st:~$ lspci |grep -i nvidia01:00.0 3D controller: NVIDIA Corporation GK106M [GeForce GTX 765M] (rev a1)
i can confirm using ubuntu additional driver to install nvidia 361 driver. this driver can shutdown the nvidia graphical card power perfectly.

Can u help me??? i really want to try the vulkan.