I'm trying to set up motion capture with the debian package 'motion'. It works great on my desk, where I have it hooked up to a monitor via HDMI, BUT when I disconnect it from HDMI and reboot it, motion does not capture images.
I suspect this is because without something attached to the HDMI port the RPi does not spin up the video device (/dev/video0) because if I disconnect the HDMI cable, motion still works until reboot.
Can anyone else confirm that? If so, is there any way to force the RPi to always turn on the video device at boot?