TV Screen goes blank after Rainbow LED boot

Hi - noob query. Many thanks in advance for any suggestions to resolve my issue.

Issue - My TV screen goes blank after Hyperion starts.

I have an image, RiP4 Hyperion starts and the Raindbow Swirl starts on my LEDs, and then the TV screen goes blank. I can hear the sound.

Equipment

My setup is installed as per this YouTube video - with power supply powering LED and RiP4, with data cable on GPIO18

RiP4 - 4gb

Power Supply 15A / 5V

LED Strips - BTF-LIGHTING WS2812b 60leds (I'm using 206 LEDs / equivalent to 13.6A)

4k Capture card - ZASLUKE - ()

Trying to isolate the issue.

I have removed the LED data wire from the data pin (GPIO18)

It seems I only get a blank TV screen when the LED is connected to the data pin.

When it is not connected, I am able to watch TV and capture the image via my data capture card.

I am able to do a screen capture as the TV is still working, it stops when I connect the LED to the data pin.

Thanks for prompt.

I'm thinking of removing HyperHDR and using Hyperion instead. Do you think the same issue would occur with the LEDs after the reboot?

Thanks for looking at the log. The capture card seems to have power after the TV screen goes blank. Not sure why it stops providing an input. I've raised a query on the HyperHDR forum and await a response. Many thanks so far.

I’ve resolved the issue by powering the Rpi4 with a separate power supply

And then connecting ground of Rpi4 to led strip.

Thanks for looking into this issue. I’ve now resolved it with a separate power supply, and connecting the Rpi4 to the led strip.