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i just upgraded from 11.10 to 12.4 , now my Intel HD and Nvidia 525 graphic cards is not installed and in additional hardware it cant find them... any solution ??? by the way i used bumblebee to reach more power on my Laptop.

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This is actually by design, Optimus laptops are currently not supported by the driver "as is" and will after installation break your desktop (unless you use Bumblebee).

This "bug" is reported at

You may still manually install the driver by installing the nvidia-current package, but it's not recommended. Instead, I suggest you to install Bumblebee which will take care of pulling the driver and configuring it to not break the desktop.

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Thanks a Lot For The Answer i will Try it ;) – chapman Apr 30 '12 at 10:34
no way :( it seems i could reinstall the ubuntu 12.4 may be its because the old packages – chapman Apr 30 '12 at 12:24
Why do you want to reinstall? Additional drivers will still be empty. – Lekensteyn Apr 30 '12 at 12:25

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