HDCP Compliant Capture

HDPC error is probably from the receiver that sees the capture card and that talks back to the roku that HDMI signal is being copied (because not equiped with HDCP protocol) , i think the only thing you can do is to purchase a splitter that is HDCP 2.1/2.2 compliant.

i am using a Xolorspace splitter,

setup is

Nvidia Shield PRO, >> Xolorspace 2 way splitter >>

output 1: TV

output 2: capture card type LOOP into USB of Raspi

https://xolorspace.com/collect…th-downscaler-4k-to-1080p

also you can play with resolutions and EDID, very nice device

Another (HDCP 2.2 supporting and) popular splitter is the FeinTech VSP01222.

Also, I am using the second HDMI output of my Denon receiver ('monitor 2') and succesfully used a grabber based on the MacroSilicon chip and it worked fine (without having to add a splitter).

Zitat von Worfje

and succesfully used a grabber based on the MacroSilicon chip and it worked fine (without having to add a splitter).

with most (cheap) NOT 4kreceivers that don't have the HDCP it doesn't.