Comment 24 for bug 1554613

I am still not 100% sure but after a day with this kernel: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc1-wily/ I can report the following:

1. No flickering
2. No more kernel dumps/bugs reports
3. No more i915 warnings
4. No more suspend issues
5. No more Dell WMI events errors
6. Not that it wasn't great but battery life seems to be improved (might be a placebo effect)

Looks like Linux 4.4 is just not ready for Skylake and backporting all the fixes is going to be hell for both maintainers and users.
If I were in position, I would push for Kernel 4.6 as an official kernel variant for 16.04 (before 16.04.1).

I just hope Dell will create enough momentum for those issues to be resolved soon, after all it's their flagship device with official Ubuntu support.