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Bumblebee 3.1 is released on 25 February 2013. Meaning you can upgrade your Bumblebee installation (via Ubuntu PPA) if you didn't upgrade already: sudo apt-get update && sudo apt-get install bumblebee bumblebee-nvidia linux-headers-generic. Visit our website: (for trying the new primus functionality, see News).

Release notes v3.1:
Primus Github:
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woo hoo! you guys are awesome! 
Thanks for the release guys! Do we know if primus was updated in the repository to work on 13.04? It's the only thing stopping me from going to the daily builds. 
I have problem with Bumblebee 3.1 on Asus Zenbook UX32VD with Ubuntu 12.10. I was using Bumblebee since january and worked fine, but after update on 3.1 Bumblebee doesn't work. I have tried all the advice what I found on the forums, but without changes. Consumption on Bumblebee 3.0 was 7W, but on 3.1  12W. What i have to do, please? 
I am wondering whether Bumblebee cut the power for GPU totally? If so, is there any need to modify ACPI interfaces ?And I have a situation that a dozen of GPU devices are plugged on a single board, is it possible for me to control the power of those devices base on Bubblebee? Advice is welcomed if this is can be done!
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