Disable HDCP to lower DPC Latency
Started by sportster




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sportster
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87 posts 34 threads Joined: Jun 2020
04-08-2022, 11:18 PM -
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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 .
https://youtu.be/ocgGKR10zQo

AMD has an option in t
This post was last modified: 04-08-2022, 11:19 PM by sportster.
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