[plantoschka]

After a reboot I have to first go to Settings -> System so it recognizes all the different refresh rates (The screen flickers once)
When I start a movie without doing that first the refresh rate always stays at 60 HZ.
So for refresh rate switching to work i first have to got to Settings->System

I'm using Lubuntu 15.10 and followed your guide. AsRock Beebox N3150

Kodi Debug Log:
http://paste.ubuntu.com/13526491/

Mesa:
http://paste.ubuntu.com/13526500/

vainfo:
http://paste.ubuntu.com/13526504/

dmesg:
http://paste.ubuntu.com/13526508/