I'm looking at purchasing a Dell XPS 15 with the Ultra HD display (3840 x 2160), but haven't been able to find any information on whether or not it works with elementary OS, and have a feeling it doesn't. A search on the Ubuntu Desktop certified hardware page says that the XPS 13 works on Ubuntu 14.04, but I get nothing for the XPS 13 on 16.04 (I'm wondering if perhaps the database just hasn't been updated yet, and that this isn't true). This thread on Reddit points out that the XPS 13 (with the Ultra HD display of 3200 x 1800) does in fact work on Freya, but that there remains some work to be done on Gala for it to work at its best (fair enough).
Regardless, the Ubuntu Desktop certified hardware page comes up with nothing for the XPS 15, be it on 14.04 or 16.04. I'm not sure what exactly the problem is, but I've read that the hard drive, a Samsung PM951 of the new NVMe type, doesn't work with Linux. If I understand correctly in this very long Ubuntu Forums thread, the XPS 15 with regular HD display (1920 x 1080) can be made to work with a lot of tweaking (which would be rather daunting for a noob like myself). That being said, that doesn't imply that the XPS 15 with the Ultra HD display would work though. At the same time, I'm wondering if the 4.4 Kernel in Ubuntu 16.04, available in the upcoming Loki release, might fix things a bit.
I ultimately want to use the computer solely with elementary OS, so am wondering if I will have to get the 13 instead of the 15 (as I would like to get that Ultra display, and ideally the 15).
Anybody have any luck, or can shed some light? Thanks in advance!
(I'm rather Linux and computer-hacking illiterate, so please bear with me as I try and understand any possible answers.)
Update 30/04/2016: I finally found a store here in New Zealand that carries Dell computers, and was able to try out the XPS 13, but not the XPS 15. As the XPS 13 seems plenty large enough for me, I'm going to go with that one instead of the XPS 15. That being said, although one of the comments here seems to assert that elementary OS works on the XPS 15, it hasn't been confirmed whether that's the XPS 15 with the i5 cores, or with the 6th generation i7 cores, and that has the QHD 3840 x 2160 screen, which would have different internals that might conflict with elementary OS / Ubuntu. I'll leave the post here for anybody's future reference, and will refrain from accepting an answer until I it's confirmed that elementary OS (be it Freya or Loki) works with the 2015 Dell XPS 15 with QHD display.