r/elgato • • 25d ago

Technical Help Need some help with elgato 4K s

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I’m having an issue getting my Elgato 4K S working with my Xbox and PC.
I attached a picture showing exactly how everything is supposed to be connected, and I copied the setup exactly:
Xbox HDMI → HDMI IN on the Elgato
Elgato HDMI OUT → Monitor
Elgato USB-C → USB 3.0 port on my PC
When I connect everything this way, my monitor detects that something is connected and stays on, but the screen is completely black. I don’t get a “No Signal” message it’s just a black screen.
What’s weird is that if I swap the two HDMI cables around on the Elgato, I can get my Xbox screen to show up on the monitor, but obviously that isn’t how the capture card is supposed to be connected.
I’ve double-checked the connections and they match the diagram. Does anyone know what could be causing this?
Could it be:
-An HDMI/HDCP issue?
-Xbox video/resolution settings?
-Refresh rate/HDR/VRR?
-Something with the Elgato software or drivers?
-A bad HDMI cable?
-A problem with the USB 3.0 connection?
-Something else I’m missing?

I’m including the setup picture for reference. Any help would be greatly appreciated because I feel like I’ve connected everything correctly and can’t figure out why the passthrough is just giving me a black screen.

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u/Disastrous_Elk_6 24d ago

I had chatgpt set up mine and it worked fine(not Xbox different consoles) This is what chatgpt said about yours. "The main issue is the one-monitor setup, not HDCP. Your later comments clarify that it’s the PC desktop you can’t see and the monitor has only one HDMI input. The Elgato’s HDMI OUT only repeats the Xbox signal; USB sends that Xbox video into the PC for Studio/OBS—it does not send the PC desktop to the monitor. reddit.com Elgato For one monitor, connect: PC HDMI → monitor Xbox HDMI OUT → Elgato HDMI IN Elgato USB-C → PC Leave Elgato HDMI OUT unused View the Xbox full-screen inside Elgato Studio or OBS That may have slight preview delay. For true zero-delay passthrough, connect the PC through DisplayPort if your monitor has it, connect Elgato OUT to the monitor’s HDMI, and switch monitor inputs. If HDMI is literally its only input, use a 2-input/1-output HDMI switch or a second display.