I've tested on default settings for signal detection and it works as intended:
Code
2020-10-04T20:55:53.584Z [hyperiond V4L2:/DEV/VIDEO0] (DEBUG) (V4L2Grabber.cpp:766:init_device()) Set framerate to 30 fps
2020-10-04T20:55:53.584Z [hyperiond V4L2:/DEV/VIDEO0] (DEBUG) (V4L2Grabber.cpp:100:loadLutFile()) LUT file found: /home/pi/.hyperion/lut_lin_tables.3d
2020-10-04T20:55:53.584Z [hyperiond V4L2:/DEV/VIDEO0] (DEBUG) (V4L2Grabber.cpp:109:loadLutFile()) Index 1 for HDR YUV
2020-10-04T20:55:53.682Z [hyperiond V4L2:/DEV/VIDEO0] (DEBUG) (V4L2Grabber.cpp:131:loadLutFile()) LUT file has been loaded
2020-10-04T20:55:53.682Z [hyperiond V4L2:/DEV/VIDEO0] (DEBUG) (V4L2Grabber.cpp:790:init_device()) Pixel format=YUYV
2020-10-04T20:55:53.691Z [hyperiond V4L2:/DEV/VIDEO0] (INFO) Multithreading for V4L2 is enabled. Available thread's count 4
2020-10-04T20:55:53.694Z [hyperiond V4L2:/DEV/VIDEO0] (INFO) Started
2020-10-04T20:55:53.695Z [hyperiond V4L2:/DEV/VIDEO0] (ERROR) Frame too small: 0 != 1572864
2020-10-04T20:55:55.449Z [hyperiond V4L2:/DEV/VIDEO0] (ERROR) Previous line repeats 3 times
2020-10-04T20:55:55.450Z [hyperiond V4L2:/DEV/VIDEO0] (INFO) Signal lost
2020-10-04T20:55:56.468Z [hyperiond HYPERION] (DEBUG) (PriorityMuxer.cpp:238:setInputImage()) Priority 240 is now inactive
2020-10-04T20:55:56.468Z [hyperiond HYPERION] (DEBUG) (PriorityMuxer.cpp:333:setCurrentTime()) Set visible priority to 255
2020-10-04T20:55:56.468Z [hyperiond HYPERION] (DEBUG) (Hyperion.cpp:538:handlPriorityChangedLedDevice()) priority[255], previousPriority[240]
2020-10-04T20:55:56.468Z [hyperiond HYPERION] (DEBUG) (Hyperion.cpp:541:handlPriorityChangedLedDevice()) No source left -> switch LED-Device off
2020-10-04T20:56:08.785Z [hyperiond V4L2:/DEV/VIDEO0] (INFO) Signal detected
2020-10-04T20:56:08.785Z [hyperiond HYPERION] (DEBUG) (PriorityMuxer.cpp:238:setInputImage()) Priority 240 is now active
2020-10-04T20:56:08.785Z [hyperiond HYPERION] (DEBUG) (PriorityMuxer.cpp:333:setCurrentTime()) Set visible priority to 240
Alles anzeigen
I've paused the movie on the intro black frame and then I resumed it.