I have a new Thinkpad W530. It has a K2000M graphics card (with Optimus) and a Intel Chipset graphic. I can't connect an external display.
Here is what I tried with more or less success.
1) Installed bumblebee: It allows me to run CUDA codes but no external display. Moreover, my graphic card is not detected as the correct one (Q2100 instead of K2000M).
2) Installed hybrid-screenclone and follow this http://sagark.org/optimal-ubuntu-graphics-setup-for-thinkpads/ : It allows to have an external displays but it is very slow and not automatic (no screen detection and no resolution auto-detection).
3) Installed thinkdisp : It is supposed to simplify the previous point but it doesn't work on my computer.
4) Installed new driver 304.37: It is supposed to support my K2000M but it doesn't work. My graphic card is not detected and external display are still not working.
Here is where I am.
NB: the rest (keyboard,wifi) is working perfectly.
I think a lot of people are facing the same problem but there is a lack of unified documentation.