Normally that would only happen if the drivers are not WHQL'd, check that they show as signed in dxdiag.
Thanks for replying. I've ran the dxdiag tool and it shows driver version
16.300.2311.0 and WHLD Logo'd = Yes.
While I don't see anything the specifically said digital signatures were
verified, the box for "Check for WHDL digital signatures" is checked on.
I'm having the same issue except it is only with vudu.com (my blu-ray playback is decrypted from the get go so I don't know about that). I have used non-WHQL drivers in the past without this issue.
Whether a driver is WHQL certified or not has nothing to do with HDCP compliance. WHQL certification is simply Microsoft's driver quality assurance program. If that were the case, anybody using a non-Microsoft operating system wouldn't be able to play HD video.
This is a bug in the drivers plain and simple.
The last two "hotfix" drivers I have used have been doing this.
I can't use previous versions after 15.12 because it causes web videos to hang the driver so I don't know where it actually started.
Actually WHQL signing has a LOT to do with HDCP since otherwise the stream isn't trusted since the files could have been tampered with and self signed.
I have similar issues with Blu Ray 3D playback. 2D playback works but with Bluray 3d the screen stays black. I downgraded to the previous driver version and everything works fine again.
My System: HD7700
Windows 10 + Anniversary Update
Power DVD 15
I don't know since when, but I have a white pixel bug in the upper left corner too (the tv works fine!). I think that is a driver issue too.
I'm running PowerDVD 16 on Windows 10 Anniversary edition and have been experiencing the same issue as well. For me it's only certain Blu-Ray discs that have specific copyright parameters. I also confirmed that WHDL is infact checked on and is on.