Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Error: unable to create the OpenGL context
I found it in this bug that seems similar but is closed: https://bugs.launchpad.net/unity/+bug/756583 - the reporter also had a laptop with Optimus technology (the laptop has both Nvidia and Intel cards).
I found what unity_support_test displayed before:
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Error: unable to create the OpenGL context
I found it in this bug that seems similar but is closed: https:/ /bugs.launchpad .net/unity/ +bug/756583 - the reporter also had a laptop with Optimus technology (the laptop has both Nvidia and Intel cards).