I used to use (before 2.5 years) Ubuntu 14.04 in my Desktop PC and then shifted to Trisquel GNU/Linux-Libre as mentioned in my profile. Recently I've purchased Dell Laptop (which has 2GB of Nvidia Graphics card) and there is Windows 10 installed. As I like GNOME more than Unity, I've recently downloaded Ubuntu GNOME 16.04.02 LTS.
After creating bootable USB stick of it, I've first used "Try Ubuntu" option to get the idea of how is it. When I checked Additional Drivers, it was showing two available drivers 1. Wireless network (wifi I think) and 2. Nvidia Graphics. I've just installed that Ubuntu GNOME 16.04.02 LTS but now Additional Drivers is saying "no additional drivers available"!
I don't understand why is installed system is not listing those drivers shown in demo version (I mean try now copy). Do I have to manually install wifi & graphics driver or is there any way to detect automatically?