openSUSE 13.1: install 'bumblebee' and disable discrete graphics adapter on NVIDIA Optimus laptop

As far as I know, the following should still work in openSUSE 13.2 -- can anyone confirm or deny?

My scenario: I am running openSUSE 13.1 on an Optimus laptop and would like to be able to turn the discrete graphics adapter on and off. Either (a) I have a clean install of openSUSE 13.1 or (b) I have already done things like install bumblebee, NVIDIA drivers, etc. in the past.

openSUSE 12.3: How to install 'bumblebee' for NVIDIA Optimus VGA

Note: This historical post was intended for me as a memory aid. If you decide to imitate the steps described, know that you are doing so at your own risk.

Bumblebee, etc. is still officially unsupported in openSUSE, but it is possible to get it working in openSUSE 12.3. However, openSUSE 12.3 itself is also history. Nowadays, I am running openSUSE 13.1 with Bumblebee on my Optimus laptop, and there is a new blog entry: http://smithfarm-thebrain.blogspot.cz/2013/10/opensuse-131-nvidia-optimus-bumblebee.html

openSUSE 12.2 with Optimus laptop: disabling discrete graphics

Background

I have a new-ish Optimus laptop (Dell Latitude E6430) with both integrated Intel and NVIDIA discrete graphics. The "Optimus" technology from NVIDIA is supposed to transparently switch between integrated and discrete graphics in the interests of saving power and not emitting too much heat. Unfortunately, NVIDIA does not provide proper Linux support for Optimus, and in fact recently got "the finger" from Linus for its less-than-helpful approach to dealing with the Linux kernel developers

openSUSE 12.2: How to install 'bumblebee' for NVIDIA Optimus VGA

The following is a description of how I installed Bumblebee 3.0 on my Dell laptop (with nVidia Optimus) running openSUSE 12.2.

NOTE TO USERS OF OPENSUSE 12.3
For a description of how I did this procedure on openSUSE 12.3, go to HERE, instead!

NOTE TO USERS OF OPENSUSE 13.1
For a description of how I did this procedure on openSUSE 13.1, go to HERE, instead!