How well do laptops with Nvidia Optimus work?
I am using NVIDIA GeForce GT 520M
default nvidia-current can only boot into Unity 2D, Unity fails to load.
I tried proprietary version (285) and it can't get into lightdm at all until I removed xorg.conf, even after that I can only get into Unity 2D as well.
Finally I tried the ubuntu-x-swat PPA and still, logging in with Unity only defaults back to Unity 2D.
With all 3 drivers running the /unity_support_test -p command gets me
Xlib: extension "GLX" missing on display ":0". Xlib: extension "GLX" missing on display ":0". Xlib: extension "GLX" missing on display ":0". Error: unable to create the OpenGL context
What can I do to get regular Unity running?