I too have a Dell XPS 9360, and I'm still experiencing this issue running the latest 4.10 kernel on 16.04 LTS with HWE-Edge:
$ uname -a Linux blackhole 4.10.0-14-generic #16~16.04.1-Ubuntu SMP Fri Mar 17 17:28:20 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
I can confirm I have all the latest updates and firmware.
I too have a Dell XPS 9360, and I'm still experiencing this issue running the latest 4.10 kernel on 16.04 LTS with HWE-Edge:
$ uname -a
Linux blackhole 4.10.0-14-generic #16~16.04.1-Ubuntu SMP Fri Mar 17 17:28:20 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
I can confirm I have all the latest updates and firmware.