Screen capture without window system

I need to record my screen or, at the very least, take a screenshot. My setup was built without any window subsystem, so I can’t use something like “ximagesrc”. I already tried to capture the buffer from DRM with “drmModeGetPlane”, but it returned a zero “fb_id”. Also, I found the link below, but as far as I understand, it’s not available on the Jetson Nano.

https://docs.nvidia.com/drive/archive/5.1.6.0L/nvvib_docs/DRIVE_OS_Linux_SDK_Development_Guide/baggage/group__scrncapt__api__group.html

So, any suggestions?

Hi,
This is not allowed due to security concern, please refer to the post:
Alternatives to directly writing framebuffer? - #4 by DaneLLL

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