Some HDMI sources display correctly in the hdmiin-demo but show as grey in gstreamer

Which system do you use? Android, Ubuntu, OOWOW or others?


Which version of system do you use? Khadas official images, self built images, or others?

Khadas 5.15 test image

Please describe your issue below:

I have a vim4 with the experimental build - it works well if you plug in the HDMI output of a raspi or a VIM board. I can both preview with hdmiin-demo and capture with gstreamer.

But some sources (eg AppleTV) capture as grey in gstreamer but show correctly in hdmiin-demo.

I hope this is useful feedback.



Post a console log of your issue below:

**Delete this line and post your log here.**

Hi @steely-glint

We have received information regarding this issue with the Grey capture input.

It could be suspected issue of HDCP or HDMI DRM protection, content from such devices cannot be recorded as it violates the content protection policy.

We need to check from our side and also confirm.