I have switched to Linux ( ubuntu 16.04.1) but have been experiencing my screen not being recognized between switching rigs ( plug in hdmi in one rig and plugging back into same gpu I started with on another rig ) also on startup I have seen my screen not be recognized.
Here's what I did:
install ubuntu
Reboot
Sudo apt update
Sudo apt dist-upgrade
Reboot
Sudo install new amd 16.50
Reboot
Run miner, see gains 
Move to next rig repeat
Came back to the first rig and screen isn't recognized.
Missing anything?