Re: Proprietary drivers not in use?
Instead of just bumping, you would do better opening a new thread with a title more appropriate to the problem you're trying to solve.
The title "proprietary drivers" applies in nearly all cases to either ATI or Nvidia video drivers (neither of which your machine uses), or to wireless drivers (which you have not mentioned).
If your DVD drive can not burn DVDs, that is an entirely different problem and you need a new thread to address that.
Ubuntu 14.04, Mint 17; MS Win 8.1.
Will not respond to PM requests for support -- use the forums.