LEDs are ON when HDMI source is OFF

There are two possible scenarios:

1) leds display rainbow colors (static) – it is because your HDMI source does not provide any signal and conveter passes control image to the grabber. Not know solution of this except for sending black color from hyperion remote.

2) leds display solid blue or dimmed white color:
Go to grabber-v4l2 section in hyperion.config.json and increase thresholds. If your HDMI source provides black image when off, increase all thresholds to 0.2-0.3. If you have blue leds (HDMI source provides blue image when off), increase blueSignalThreshold to 1.0.

	"grabber-v4l2" :{
		"device" : "/dev/video0",
		"input" : 0,
		"standard" : "PAL",
		"width" : 360,
		"height" : 288,
		"frameDecimation" : 2,
		"sizeDecimation" : 1,
		"priority" : 1100,
		"mode" : "2D",
		"cropLeft" : 12,
		"cropRight" : 12,
		"cropTop" : 5,
		"cropBottom" : 5,
		"redSignalThreshold" : 0.2,
		"greenSignalThreshold" : 0.2,
		"blueSignalThreshold" : 0.2
	},

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