this movie can only be played on displays that support HDCP

I found more information on the command above.

1. https://discussions.apple.com/thread/8474875 Errors on Internal MacBook Pro Display
2. https://forums.whirlpool.net.au/archive/2757251 HDCP error / Stuttering Fix / Netflix issues

This appears to involve problems with internal monitor and doesn't seem to apply to your system. Given that the command has to be entered with su or sudo while in recovery mode, this is not a command that I would wish to try.

Can you watch the movie on your the monitor that is inside your MacBook. Can you use the HD displays when they are plugged directly into the MacBook Pro instead of going through the dock?

See https://support.displaylink.com/forums/287786-displaylink-feature-suggestions/suggestions/35189017-enable-hdcp-protected-content-playback-on-macos-i HDCP can be stopped by software or hardware in the middle since the computer is no longer able to determine what the display is. This is the reason professional level equipment uses SDI instead of HDMI.

The problem isn't so much Apple catching up with Windows as Apple obeying legal requirements. Is this a DVD or an online streaming service? If it's on a DVD, you might try the VLC public-domain software. If you are using an HDMI connection, you might try VGA or DVI connections.

Just open Terminal then paste the command (or type if preferred) and hit Return. Do not try to click in the command line or set your cursor; just open the app and begin typing.

If that is exactly what you did then I couldn't guess what the error is all about.

Cheers

If you want information on the nvram command, type man nvram to get information on how to use it.

https://software.intel.com/en-us/download/intel-sgx-intel-epid-provisioning-and-attestation-servicehttps://software.intel.com/en-us/articles/intel-enhanced-privacy-id-epid-security-technologygives gives information on the Enhanced Privacy ID security features involving provisioning of firmware. I would contact somebody much more knowledgable before trying to use a command of this type. This type of command can destroy your machine if the incorrect values are used.

In any event the specific value above is described at https://github.com/erikberglund/AppleNVRAM/blob/master/EFI/8BE4DF61-93CA-11D2-AA0D-00E098032B8C.md Other information on the nvram command indicates that it can completely prevent booting of your workstation.

Apple Care Support shared the following terminal command:

nvram 8be4df61-93ca-11d2-aa0d-00e098032b8c:epid_provisioned=%01%00%00%00

Worked for me; hope it helps you as well.

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