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I have got a Dell Inspiron N5110 running Ubuntu 12.04. It has two graphic cards, Integrated Intel graphics And Nvidia. I was wondering if there is a way to switch between graphic cards. As the Nvidia card is using a lot off battery power I want the Intel card to be the default.

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Are you sure that you are running on the nvidia GPU? I think your intel GPU is running your desktop while the nvidia card is sitting down wasting power. superuser.com/q/392098/47108 –  Lekensteyn May 15 '12 at 18:01

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Is it one of their Optimus cards? That's what I have, and I use Ironhide to switch between cards. My laptop uses the Intel card most of the time, but when I need more power I run the application through optirun <command>.

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