Having found a lot of different questions on Ask Ubuntu regarding NVIDIA graphics drivers installation generating various issues and problems on Ubuntu systems - I do want to know:
What do Ubuntu users have to care about when installing the NVIDIA graphics drivers?
Explanation:
Being aware that this topic already has many good questions and answers it actually always stays up-to-date. One example : Many new notebooks come with hybrid graphics and Optimus support so they depend on proprietary NVIDIA drivers being installed to function properly but most of all existing posts point to xorg-edgers PPA which doesn't provide the drivers anymore since ubuntu Proprietary GPU Drivers PPA was introduced, so many old answers are mostly obsolete or wrong.