I got this reply and now my support ticket is closed:
Dear XXXXXX,
Thank you for writing back.
In regards to your concern, I would like inform as you have mentioned the condition happen after Windows 10 upgrade, the Intel VGA driver are still having high update frequency by Intel lab due to Win 10 compatibility issue fixing.
Due to there is Displayport to HDMI adapter doing the signal conversion, the complexity would cause difficulty for engineer to sort out the exact root cause of the condition.
I would advise you to switch the VGA connection from A/V receiver to connect 3D TV directly with HDMI cable. Check if the 3D display could be detected by VGA driver and PowerDVD properly.
Please feel free to contact us back for any further clarification or for any assistance related to CyberLink products.
Use the below mentioned link to get back for further queries:
https://membership.cyberlink.com/support/service/technical-support.do
Thank You and Best Regards,
Akarsh
CyberLink Technical Support
This didn't fix my problem and the support ticket is closed. Only reason I own Power DVD 15 is to play 3D blu ray. Once my subscription expires wont be renewing my membership.