No, the ubuntu-x-swat/x-ubdates is for older versions of Ubuntu. This is likely what broke your system.
Originally Posted by WesternRyno
So now you have to purge that ppa. So go to the terminal and type:
sudo apt-get install ppa-purge
that should return your system to the state it was in before installing either repository. Be sure to note any errors. If the remove of the bumblebee repository fails then run:
sudo ppa-purge ppa:bumblebee/stable
sudo ppa-purge ppa:ubuntu-x-swat/x-updates
and post the result back here. It should be:
deb http://ppa.launchpad.net/bumblebee/stable/ubuntu precise main
deb-src http://ppa.launchpad.net/bumblebee/stable/ubuntu precise main
if it lists any packeges then they should probably be removed but post these first so someone on the forum can confirm.
dpkg -l | grep nvidia
If all the above commands were successful and there were no nvidia packages installed then you can run the commands below to install bumblebee properly (I would try to boot back into the graphical environment first just to make sure it is working now):
sudo add-apt-repository ppa:bumblebee/stable
sudo apt-get update
sudo apt-get install linux-headers-generic bumblebee bumblebee-nvidia