I have my Powerbook connected to a TV with a DVI-HDMI adapter, everything works fine, its really cool to have a 40" MorphOS desktop;)
Now I put a HDMI video capture device between the Powerbook and the TV to record MorphOS's desktop.
The signal is send through the box to the TV, I can the see video signal, everything is working so far.
But pressing the "Record" button on the device does nothing, it should start flashing red and record whats on the desktop.
I have tested the box with the PC from my daughter and a PS4 (after disabling HDCP, with HDCP the screen stays black), recording works there, but not with my Powerbook!?