[fritsch]

check kernel version (uname -r in the CLI) if it's 4.14 or later then it'll work.

LibreELEC 9 (with Kodi 18) make Apollo Lake NUC6CAYH work perfectly including both 4K@60 video output and all kind of audio formats bitstreaming, so it's software support is slow, the hardware isn't a problem, one problem remain is although it can decode HEVC 10-bit 150Mbps (I haven't tested anything higher) HDR metadata isn't output to the TV so no HDR support.

So, buy an Nvidia Shield TV now if you want a perfect Kodi box (I can't think of anything that I want that the Shield isn't supported) or hold on for a few months until LibreELEC with Kodi 18 release (still no HDR support by then as far as I know) then your NUC can be a very capable Kodi box + linux power for anything else (media server/recorder...)

I'm an Ubuntu newbie with J3455. Just installed the latest ubuntu 17.10 with kernel version 4.13.
Right now I'm having major problems with it.
1, kodi lack audio passthrough option. It's missing the toggle field.
2, hardware decoding is not working, my cpu is at 30-50%
3, playback flickering

I guess I will try to update to kernel 4.14 but I doubt it helps because even with 4.13 those basic things listed above shouldn't be a problem.
I would love to use LibreELEC but I still need to bittorrent 24/7 on the same HTPC. I'm assuming LibreELEC can't run any app other than kodi, correct me if I'm wrong.

No Debug Log no issue
For 1, read: http://kodi.wiki/view/PulseAudio