Bug#747837: fixed in nvidia-settings 331.79-1

[Michael Gilbert]

control: reopen -1
control: notfixed -1 331.79-1

>    * Move source package and libxnvctrl{0,-dev} to main, but keep
>      nvidia-settings in contrib. The library can be used to query for
>      availability of the NV-CONTROL X extension.  (Closes: #747837)

It looks like this only worked on certain architectures.

$ rmadison libxnvctrl-dev | grep sid
 libxnvctrl-dev | 331.79-1            | sid                       | armhf
 libxnvctrl-dev | 331.79-1            | sid/contrib               | amd64

Best wishes,
Mike