ssh in: Jul 07 19:46:12 raspberrypi hyperiond[437]: V4L2GRABBER INFO: stopped ssh in: Jul 07 19:46:14 raspberrypi hyperiond[437]: terminate called after throwing an instance of 'std::runtime_error' ssh in: Jul 07 19:46:14 raspberrypi hyperiond[437]: what(): VIDIOC_QBUF ERROR 19, No such device
Looks like the usb video grabber is having a issue.
It could be something simple like: No enough power for the Rpi and the usb grabber to function. Make sure you power supply for the rpi is a minimum of 2.5 amps.
If you have a powered usb hub, try plugging that to the rpi and then the usb grabber. This way the grabber is powered from the hub.
Hope its of help.