Lenovo W530 doesn’t duplicate screens as expected
I recently faced this problem with my new Lenovo W530. On Windows 8 when using win+P to duplicate my display on a projector for a demo, it doesn't work. Only extended works.
I found this blog post that describe the same problem and it has good solution for it. I used the solution 1. The only difference is in my NVidia control panel, it says clone instead of duplicate. I'm adding that blog post here for reminding me and to share it in case there are others facing the same problem.