Installing Ubuntu 15.04 on the Dell XPS 13 9343 (2015) : A complete guide

This guide is outdated and for reference material only! Please use the new and up-to-date guide now ! 

Update 10/09/2015 : New guide is live!
Update 31/08/2015 : Barton George announced the incoming A06 Bios version permanently fixing keyboard repeating issue. A lot of others fix are coming (Kernel panics when switching wireless networks, Suspend resume and trackpad cursor freezing). I will try to promptly write a new and simpler guide including all those new bug-fixes once they have all been confirmed working properly.
Update 31/07/2015 : Bios A05 is out ! Changelog is “Improved Keyboard behaviour” (maybe fix the keyboard repeating issue on Linux) and “Windows 10 Support”.

Update 29/07/2015 : Fixed power saving script witch was not automatically launched.
Update 22/07/2015 : Kernel 4.1.3 fixed broken microphone.


 

I recently bought a XPS 13 2015 Developer edition. It is a great laptop equipped of an Intel Core i7-5500U, 8 Go of ram, a 512 Go SSD and a QHD+ (3 200 x 1 800) touch display.

I primarily bought the XPS because it was shipped with Ubuntu 14.04. Dell is working hard  to make everything working correctly with their hardware (see Project Sputnik). But there are still a load of problems and complains about the Linux support on this laptop :

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