The team behind the “The Bumblebee Project” have released Bumblebee 3.1 with experimental support for Primus, if you added the Bumblebee PPA from my previous posts you will have been automatically updated to 3.1.
I will go over the steps to install on Ubuntu again for people who need help
Add the Bumblebee repository
sudo add-apt-repository ppa:bumblebee/stable
Install the latest graphics drivers (optional but recommended)
sudo add-apt-repository ppa:ubuntu-x-swat/x-updates sudo apt-get update
Install Bumblebee using the Nvidia drivers
sudo apt-get install bumblebee bumblebee-nvidia linux-headers-generic
Reboot and run glxspheres to make sure Bumblebee is installed correctly
You can now Install Primus from the Bumblebee PPA
sudo apt-get install primus
If you are using a 64bit system install primus-libs-ia32:i386
sudo apt-get install primus-libs-ia32:i386
You can change the “bridge” option to “primus” in the “bumblebee.conf” etc/bumblebee/bumblebee.conf but this isn't recommended as there are still some incompatibilities with programs.
Your other option to use Primus is to run it directly from the Terminal.
optirun -b primus "program you want to run"
For other Linux Distros visit The Bumblebee Install Page
For More Information on Bumblebee http://bumblebee-project.org
For More information on Primus https://github.com/amonakov/primus
Lekensteyn Bumblebee dev has commented with the following information,
You are *encouraged* to try primus, but note that there *may* be some incompatibilities. If most of your programs run fine with primus, you can set Bridge=primus in /etc/bumblebee/bumblebee.conf. If some programs do not run with primus, you can override it and use virtualgl:
optirun -b virtualgl some-program
Please be kind, read documentation and do research before flooding the issue tracker with common issues including missing kernel headers and questions that ask how to install the latest nvidia drivers.
Peter (a.k.a. Lekensteyn)