The original solution was verified on Ubuntu 17.10. However it’s also verified on Ubuntu 18.04 after the 18.04 version is released.
Ubuntu 17.10 Artful Aardvark is just released. A big change in this release is that it ditches Unity for Gnome. Most likely this will be part of the next LTS version “18.04”(Confirmed on 2018-05-14, the solution below also works on Ubuntu 18.04).