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I am looking for the drivers for Integrated Display on Lenovo 420s Core i7. This computer has the nvidia optimus option. Can anyone point me in the right direction?

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To turnoff nvidia graphics card and use it only when required install The Bumblebee:

If you are on 11.04 or older , you will need new drivers, run

sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update

Add the Stable Bumblebee Releases PPA and install Bumblebee using the proprietary NVIDIA driver:

sudo add-apt-repository ppa:bumblebee/stable
sudo apt-get update
sudo apt-get install bumblebee bumblebee-nvidia

If you have 32-bit applications like Wine, and run 11.10 Oneiric or later, you will need extra libraries:

sudo apt-get install virtualgl-libs:i386

Allow yourself to use Bumblebee by adding yourself to the 'bumblebee' group. (replace $USER by your username)

sudo usermod -a -G bumblebee $USER

Reboot or re-login to apply the group changes

If you'd like to run a program on the nvidia card now, use the optirun program:

optirun firefox &

Read more from bumblebee wiki

Linked Question:

Is a NVIDIA GeForce with Optimus Technology supported by Ubuntu?

How well will Nvidia Optimus cards be supported in 12.04?

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