@footar I’ve just came across your thread as I’m searching for an all-in-one docking station solution connecting with the my Fairphone 2, the Xiaomi Mi 5s and my future APU computer.
As I will get quite an antique desk what will be my future office desk I searching for something decent. As the Fairphone is properly the biggest hurdle to take, I started searching in the fairphone forum and found some other interesting posts as well.
It seems that either DisplayLink or Slimport (via expansion port) could be an alternative.
May you want to list all possible solution in you starting post?
My sources:
Continuing the discussion from Upgrade potential: MHL?: