Comment # 1 on bug 905351 from Frank Sundermeyer

Thanks for your report.

Bumblebee and the NVIDIA drivers _may_ be installed together as described in
SDB:NVIDIA Bumblebee. This is necessary if you want to play games, e.g. via
Steam. However, when not wanting to play games, installing the NVIDIA driver is
not necessary. Therefore we added the following disclainer to the article: 

If you don't plan to use the discrete graphics adapter at all (i.e., you want
to run the Intel driver all the time), you can safely skip installing the
NVidia drivers. Bumblebee will use the nouveau driver for its own internal
purposes.

For the future I'd like to encourage you to either directly edit the articles
on en.opensuse.org if you find errors, or to use the "Discussion" to discuss
matters with the page's authors. Editing the wiki pages is even easier than
reporting bugs (and only requires the same login credentials as bugzilla).
Using the discussion page of an article ensures that you can directly talk to
the authors of the page.