I'm using Volumio with the screen timeout configuration from this post, works like a charm thank you so much!
There's just one problem left for me. I've installed kodi over the webinterface as a plugin.
Now Volumio will boot directly into kodi after power on which is great. However the screen timeout kicks in after 30 seconds and I'm not able to wake it up by touching it. Within the Volumio interface it was possible to wake the screen again.