Just discovered why my system has been refusing to use DXVA and, as I can't find it mentioned here by anyone else, I thought I'd share.
It was the Ultra VNC video hook driver causing me all the trouble. I'd setup UVNC ages ago to get remote access to my HTPC and forgot all about the hook driver. As soon as I turned off the hook driver option and restarted everything started working.
It might be worth listing it in the unsupported software.
It was the Ultra VNC video hook driver causing me all the trouble. I'd setup UVNC ages ago to get remote access to my HTPC and forgot all about the hook driver. As soon as I turned off the hook driver option and restarted everything started working.
It might be worth listing it in the unsupported software.