Disable HDCP to lower DPC Latency


  1. sportster
    Posts : 280
    Nexus Windows 10 ENT LTSC 2021 64bit
       New #1

    Disable HDCP to lower DPC Latency


    Content that requires HDCP will probably not work.Windows or driver updates will likely revert the configuration, as will reinstalling the display adapter.

    Configure the following DWORD value below for your active display adapter then resart your computer. This should cause Nvidia to display This display does not support HDCP as configured in the Nvidia control panel in the View HDCP Status sub-menu, third party tools can also be used to validate HDCP is disabled.

    The key 0000 in the registry reflects the path of the active display adapter, look for the value of HardwareInformation.AdapterString to help identify your display adapter and the appropriate key to create the DWORD in. (e.g. 0000, 0001, 0002)
    Example
    Windows Registry Editor Version 5.00
    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000]
    "RMHdcpKeyglobZero"=dword:00000001

    Restart your PC.
    This video claims that it lowers DPC latency .
    Disable HDCP on Nvidia video cards - YouTube

    PS: I wonder if anyone know of a script or program that does this ?
    Last edited by sportster; 08 Apr 2022 at 18:47.
      My Computer
    Quote Quote

  3. BlackVen0m
    Posts : 472
    Windows 10 Pro x64
       New #2

    WTF! Wow! Thanks!!
      My Computer
    Quote Quote

 

  Related Discussions
Hi all, apologies for the length, trying to enclose as much info as possible. I have an external firewire audio interface that I use with music keyboard and various music software. Having problems with latency. It sounds like a static type...
DPC latency tests. High latency?
in Drivers and Hardware

Hello :) I have done some latency tests on my computer after I began to get some audio popping in my headphones. I have had this problem for a few months now. I cant seem to understand if my results are okay or not, which is why Im asking you. No...
Hi everyone. My max (100) volume on Windows 10 is about 40% of what it used to be on previous windows. I can barely hear anything on YouTube. I found about 5-6 topics on google discussing this, but none of the solutions worked. I've tried...
Is there any way to set my DPI setting lower, than 96 (100%)? I've read about a registry hack for 7, but it doesn't work in 8.1, so I guess it also wouldn't work in 10.
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

 © Designer Media Ltd
All times are GMT -5. The time now is 17:13.
Find Us




Windows 10 Forums