I haven't tried it. So far I haven't needed to upgrade my ArcSoft to a version that has Cinavia detection.
Only the people selling officially licensed BD players have implemented Cinavia protection in their players. This is because they have been forced to do so. So, this would be ArcSoft, PowerDVD, and the like.
The people behind Cinavia would never tell the open source community how to implement it because that same information would be used to figure out how to remove it, or how to fool other players into not detecting it. Not to mention the open source community would never be interested in implementing it.