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I am using ubuntu 13.10, and have bumblebee installed. I can see that bumblebeed is running.

I would like to test whether the NVidia card is currently powered. Can I do this?

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Have you solved your problem? –  Salem Apr 18 at 12:02
    
@Salem thanks for reminding me. Your solution is the one. –  Owen Apr 18 at 18:13
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2 Answers 2

up vote 1 down vote accepted

You can check that using cat /proc/acpi/bbswitch:

$ cat /proc/acpi/bbswitch 
0000:01:00.0 OFF

If for some reason it stays on when you are not using it, check your Bumblebee configuration (stored in /etc/bumblebee/bumblebee.conf), more precisely the PMMethod value.

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By default, the Nvidia card is disabled in Bumblebee.

But you can run a program with your Nvidia card using optirun <program name>.

If you installed primus, you can use primusrun <program name>.

Example:
glxgears for FPS without Nvidia.
optirun glxgears for FPS with Nvidia.

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