I've tried both the 15.7 and 15.8 beta drivers and am using Windows 10 Home, all drivers uninstalled using Display Driver uninstaller
I have an R9295x2 and the monitor is a Samsung U32E850R connected via DP to miniDP
Freesync option enabled on monitor (standard and ultimate options tested) and in CCC
When i start the Freesync Windmill demo i can see that it detects the monitor as Freesync capable but it wont allow me to enable freesync in the demo and i can see that its not enabled in games as i still get tearing.
I have tried with Crossfire on and off as you reported these drivers allow for crossfire and freesync to work together.
Does anyone have any advice as i can see from multiple Google searches that I'm not the only person with this combination of GPU and monitor that is having these issues.
If you need any more info let me know as i'll be hovering around the forums waiting for a reply