I checked to make sure I wasn’t completely talking out my xxxhat 
- Driver version info
- It’s not blacklisted.
- Rendering surface created
- It can’t render what it wants on it (either target codec & resolution -or- asking it to burn subtitles)
- It falls back to SW
Beyond that, I’m afraid you’re ahead of me.
I’m a few months behind at this point. (waiting for mobo to arrive for a E5-2690v3 build to start)