Configuration

WConfiguration of both Bumblebee daemon (bumblebeed) and client (optirun) are made on a single file located on $CONFDIR/bumblebee/bumblebee.conf, depending on how you installed Bumblebee, CONFDIR could be /usr/local/etc or /etc. The file bumblebee.conf is self documented.

Using Nouveau driver

Provided you have the packages needed and your card's 3D features are supported by Nouveau yo need to set this options in your bumblebee.conf.

[bumblebeed]
Driver=nouveau
...
[driver-nouveau]
KernelDriver=nouveau
XorgConfFile=/etc/bumblebee/xorg.conf.nouveau
...

Using Nvidia driver

[bumblebeed]
Driver=nvidia
...
[driver-nvidia]
KernelDriver=nvidia
Module=nvidia
LibraryPath=PATH TO NVIDIA LIBRARIES
XorgModulePath=PATH TO NVIDIA XORG MODULES
XorgConfFile=/etc/bumblebee/xorg.conf.nvidia
...

On Ubuntu, Module is nvidia-current, not nvidia.