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Groups > alt.comp.os.windows-10 > #183648

Re: HDMI & HDCP

From Another John <invalid@invalid.invalid>
Newsgroups alt.comp.os.windows-10
Subject Re: HDMI & HDCP
Date 2025-04-14 16:57 +0000
Organization To protect and to server
Message-ID <vtjf6k$1ddq1$1@paganini.bofh.team> (permalink)
References <vth1uc$3hjkf$1@dont-email.me> <vth9hj$3o85p$1@dont-email.me> <vtj0sq$19s8m$1@dont-email.me>

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On 14/04/2025 13:59, Ed Cryer wrote:

> There's a crazy pattern of things that do work and things that don't.
> Channel4 works on all Windows computers that I have. They need Widevine 
> installed in Firefox, but the monitors don't object; a Samsung TV, a JVC 
> TV, a laptop monitor all work ok.
> The app works on my iPad, iOS; but when I screen-mirror to the Apple TV 
> both displays go blank.
> 
> The Apple TV is plugged into a Panasonic 48" TV.
> So then, which device is the culprit? It's either the Apple TV or the 
> Panasonic.
> 
> Ed
> 


You need something like this:

<https://www.instructables.com/How-to-Bypassing-HDCP/#:~:text=Step%201:%20Method%201:%20Buy%20a%20HDMI,watch%20content%20and%20HDCP%20error%20is%20gone!>


HDCP stands for High-bandwidth Digital Content Protection. It's a 
digital copy protection technology developed by Intel to prevent 
unauthorized copying of digital audio and video content as it travels 
across connections like HDMI, DVI, and DisplayPort.
Purpose and Function:

     Copy Protection:
     HDCP encrypts the digital content stream to make it difficult to 
copy or record without proper decryption.
     Security Measures:
     It also verifies that the receiving device is authorized to play 
the content, preventing unauthorized access.
     HDMI, DVI, and DisplayPort:
     HDCP is a key component of these digital interfaces to protect 
content during transmission.

Why HDCP Matters:

     Preventing Piracy:
     HDCP is designed to combat piracy by preventing illegal recording 
and distribution of copyrighted content.

Streaming and Content Protection:
HDCP is crucial for streaming services like Netflix and Hulu, protecting 
their content during transmission to your devices.
4K and Beyond:
HDCP 2.2 and later versions are essential for supporting the higher 
bandwidth requirements of 4K and 8K content.

HDCP Errors:

     Compliancy Issues:
     HDCP errors can occur when devices or cables are not HDCP 
compliant, leading to issues like black screens or video playback failure.

Troubleshooting:
To fix HDCP errors, you may need to ensure all devices and cables in 
your setup are HDCP compliant, or try different HDMI ports or cables.
Bypassing HDCP (Caution):
While it's possible to bypass HDCP, doing so is not recommended and may 
violate copyright laws.

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Thread

HDMI & HDCP Ed Cryer <ed@somewhere.in.the.uk> - 2025-04-13 20:05 +0100
  Re: HDMI & HDCP Paul <nospam@needed.invalid> - 2025-04-13 17:15 -0400
    Re: HDMI & HDCP Ed Cryer <ed@somewhere.in.the.uk> - 2025-04-14 13:59 +0100
      Re: HDMI & HDCP Another John <invalid@invalid.invalid> - 2025-04-14 16:57 +0000
      Re: HDMI & HDCP Paul <nospam@needed.invalid> - 2025-04-14 18:49 -0400
        Re: HDMI & HDCP Ed Cryer <ed@somewhere.in.the.uk> - 2025-04-15 10:52 +0100
          Re: HDMI & HDCP Ed Cryer <ed@somewhere.in.the.uk> - 2025-04-15 11:05 +0100
            Re: HDMI & HDCP Paul <nospam@needed.invalid> - 2025-04-15 08:22 -0400

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