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Possible Duplicate:
How well do laptops with Nvidia Optimus work?

My lenovo Z570 have 2 Graphic cards Intel HD and Nvidia 520m. In Ubuntu 11.04 I used wobbly windows which but now in 11.10 I cannot use it.

When my system shows me restricted drivers available I downloaded them, installed them and reboot but no difference. If I am gonna use GNOME without Nvidia Drivers It looks excellent, After installing them and rebooting system goes into classic mode.

And I tried to do something I saw searching on net, but that ended with a black screen after booting windows or just a terminal asking my username and password nothing else. The result of that was reinstalling Ubuntu from scratch.

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