The official nvidia drivers are not working properly on my thinkpad T520 So I was going to give bumblebee a shot.
I have an ubuntu 11.04 install and am reciving a package not found error when trying to install bumblebee. I followed the instructions on the bumblebe site. It did work on my 12.10 install but not on my 11.04. the error I am receiving is
sudo apt-get install bumblebee bumblebee-nvidia
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package bumblebee
E: Unable to locate package bumblebee-nvidia
Thanks
sudo apt-get update
was successful or showed errors?