I have a Samsung NP-QX411. It has two graphics cards, Intel and nVidia. The Intel drivers were quickly found and is fully functional. But nVidia, I have tried installing several drivers in different ways. But I can not run it without success. I do not understand how Ubuntu has by default the switch Hybrid Graphics option. What should I do?


Try ironhide (forked from bumblebee) for simultaneously using the intel and nvidia cards:

For ironhide (Ubuntu Natty/Oneiric instructions):

sudo apt-get remove bumblebee


sudo apt-get install dialog


sudo apt-get install cdialog


sudo apt-add-repository ppa:mj-casalogic/ironhide
sudo apt-get update && sudo apt-get install ironhide

For a WebGL benchmark, install google-chrome or use a

WebGL-enabled browser and can try it with/without optirun and

report the FPS values on the mailing list:

optirun google-chrome http://webglsamples.googlecode.com/hg/aquarium/aquarium.html
# close window
google-chrome http://webglsamples.googlecode.com/hg/aquarium/aquarium.html
  • Before or after installing the drivers?
    – AlejoNext
    Sep 1 '11 at 16:38
  • 1
    the drivers will be installed automatically by ironhide, as well as acpi_call for switching on/off the card and improve battery life.
    – 719016
    Sep 1 '11 at 17:47
  • how to know if the hybrid graphics card working?
    – AlejoNext
    Sep 1 '11 at 20:02
  • 1
    try to run some of the webgl examples, I've edited my answer.
    – 719016
    Sep 2 '11 at 8:12
  • 1
    and ubuntu 11.10 ??????????
    – AlejoNext
    Oct 13 '11 at 19:41

https://wiki.ubuntu.com/Bumblebee The installation has been updated on 26/04/2013.

Bumblebee aims to provide support for NVIDIA Optimus laptops for GNU/Linux distributions. Using Bumblebee, you can use your NVIDIA card for rendering graphics which will be displayed using the Intel card.

sudo add-apt-repository ppa:bumblebee/stable

sudo apt-get update

sudo apt-get install bumblebee virtualgl linux-headers-generic



To run your application with the discrete NVIDIA card run in the terminal:

optirun [options] <application> [application-parameters] 


optirun firefox 

For a list of options for optirun run:

optirun --help

Your nVidia card is not functioning as a GPU but it surely is ON all the time you are on Ubuntu ( hence, the battery life shown would be half of what it should have been). All the steps can be found here . Please make sure you follow the instructions corresponding to your current Ubuntu version.

Once you have Bumblebee up and running, your nVidia card would ALWAYS be off until you use the optirun command. Consult the Bumblebee wiki at all times.

This answers your question of switching between the cards. You might also find this blog post helpful.

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