NOTE: Before you mark the question duplicate and give me the link to this solution: Install Nvidia dual-graphics driver on Loki? I have to state that I tried it and it automatically installed nvidia-367 drivers but the nvidia-settings panel did not show any configurations or settings, meaning that the new drivers were not properly installed.
So i'm asking you, is there anyone who is using Loki (up-to-date) with Intel HD + NVIDIA cards and managed to install NVIDIA drivers and use optimus or bumblebee or any means to achieve successful switching between graphics cards?
This solution: How can i switch between Intel and Nvidia Graphics card? also suggests the same thing but I don't see any "PRIME-profiles" (or any other profiles or settings) in the NVIDIA X Server Settings panel.
And if anyone knows, can someone explain why is it so hard to successfully install latest NVIDIA drivers without getting black screens, login loops and many other problems? I tried and also read many questions and solutions about this problem, but the solutions are neither permanent nor simple.
By the way: I have ASUS UX303UB, I don't know if this is an issue with this laptop model.