First of all sorry for my English, it's not my first language.

Here is what I have done:

I had a working ubuntu 12.04 with all updates and working bumblebee, so I could do optirun command and battery life was better than without bumblebee.

Than I decided to reinstall both my systems installed windows 7 and ubuntu.

Reinstalled Windows 7 all working as expected, than on other partition installed ubuntu 12.04. All worked perfectly. Than I installed bumblebee according to the procedure written here https://wiki.ubuntu.com/Bumblebee same steps that I used before.

But now after I install drivers and do all written in procedure and I reboot my notebook system won't boot, it is simply stuck at black screen after short showing of start screen.

I reinstalled ubuntu many times already and tried everthing, but when I try install nvidia drivers it won't boot after shutting down notebook and only thing I can do is reinstalling system.

I have Lenovo Thinkpad Edge E530 and processor: Intel® Core™ i5-3210M CPU and graphic cards are Intel HD 4000 and Nvidia geforce gt630m

After clean install without bumblebee, terminal command lspci| grep VGA is showing:

00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09)

01:00.0 VGA compatible controller: NVIDIA Corporation Device 0de9 (rev a1)

Can you suggest a sollution?? Or at least some links to similar topics??