Hey everyone,
I have the following setup
Chromecast 4k into an HDMI splitter (1-in 2-out), that support up to 8k 60hz
One HDMI into a 4k Samsung tv, works just fine including CEC
The other HDMI goes into a UGREEN USB HDMI capture card (model: CM489), it goes into a raspberry pi 5 (4gb) with Hyperion
On Hyperion the USB is recognized but only shows a black image in the live view, I tried almost all the settings but still the same.
Things I tried:
- Lowering the Chromecast resolution to 1080p 30hz
- Connected the USB into a laptop with OBS, managed to capture the image with no issues (MJPEG, 1920x1080, 30fps)
- Changed the USB power settings on the PI (set usb_max_current_enable to 1)
- Took an image from the pi (tried a few jpg and yuyv, both jpg could not be viewed, possibly corrupt, the yuyv showed a black image as well
I am not sure what else to try, any advice would be helpful!
Thank you all! ![]()
Black image on Hyperion live view | RPI 5 + Ugreen usb hdmi video capturd card,
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- Issue
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Fullbit -
January 1, 2026 at 4:12 PM -
Thread is Resolved
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- Official Post
This problem has been discussed several times already, read here
PostRE: Live Video in Hyperion NOT WORKING - Black Screen
Why 2.0.16?
Black Screen
Hyperion Settings level Expert and check the hardware settings of the grabber.
Press Default hardware controls
Correct the values for your grabber
If you have problems, try the nightly build, attach a complete Hyperion debug log.
Hyperion on Linux · Hyperion documentation
Releases · hyperion-project/hyperion.ng · GitHub
regards pclin
pclinDecember 17, 2025 at 11:29 AM regards pclin
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- Official Post
Unfortunately, I can't find anything specific when searching for "UGREEN USB HDMI capture card CM489".
Could you please post the output of...
usb-devices
lsusb
v4l2-ctl --all
v4l2-ctl --list-formats-ext
Link would be good too.
regards pclin
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"Hyperion Settings level Expert and check the hardware settings of the grabber.
Press Default hardware controls"
Doing this solved the video capturing issue, thank you!
The only issue I face now, is that when there is no data, I get a rainbow screen like the one below.
I assume it's the USB doings?
This is the usb
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- Official Post
PostRE: How to turn off lights when no signal
[…]
Settings Level > Expert
Capturing Hardware > Signal detection aktivate
regards pclin
pclinDecember 22, 2025 at 9:13 PM regards pclin
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Thank you this solved the issue
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