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i have asus N53SN which has 2 graphics card intel and geforce gt550M and used bumblebee. but i have a problem which i dont know when intel or geforce is going to work. is there any way for me to select intel or geforce when i want?

using ubuntu 13.04 64 bit

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By default with the bumblebee project, you need to tell what applications will use the Nvidia card for rendering with the optirun command:

optirun firefox
optirun awesome_game
optirun gimp
optirun mplayer

Check the Ubuntu wiki for more information, or use optirun --help.

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