hey,
if you are writing about the 2015 edition of the xps 13, are you aware of these bug-reports?

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1413446
https://bugzilla.redhat.com/show_bug.cgi?id=1188741
https://bugzilla.kernel.org/show_bug.cgi?id=93361

if you haven't seen it, there's a nice write-up about what's wrong with the device: https://major.io/2015/02/03/linux-support-dell-xps-13-9343-2015-model/