Always 100% at volume, no 0-100%!

Time to solve this bug onces and for all…

Tried over at the Kore team: https://github.com/xbmc/Kore/issues/226
Tried over at OSMC team: https://discourse.osmc.tv/t/make-the-vol…time/14651

Pastebin: http://pastebin.com/SkQ1ceX3
And a video of proof: https://dl.dropboxusercontent.com/u/7040…192004.mp4

My rPI 2 model B is connected to our home theatre and when I press the volume up or down the voloume increase or decrease, but the volume is only showing 100%! Yesterday I re-installed OSMC and the bug is still there…