RPi + OpenELEC LEDs working but no data from internal grabber

I set up a ambient-light for RPi2 running OpenELEC using an arduino Micro and two TLC5947. LED work fine with colorwheel but I get no light with the internal grabber (when playing video).

Do I have to set up anything different ?
How can I check if the framegrabber is working properly?

Code:

Hyperion Ambilight Deamon (1059)
ssh in:         Version   : V1.03.2 (brindosch-99d9396/d3713a8-1469452981
ssh in:         Build Time: Jul 25 2016 06:54:40
ssh in:     INFO: Selected configuration file: /storage/.config/hyperion.config.json
ssh in:     HYPERION INFO: ColorTransform 'default' => [0; 15]
ssh in:     HYPERION INFO: ColorCorrection 'default' => [0; 15]
ssh in:     HYPERION INFO: ColorAdjustment 'default' => [0; 15]
ssh in:     LEDDEVICE INFO: configuration: 
ssh in:     {
ssh in:         "colorOrder" : "rgb",
ssh in:         "delayAfterConnect" : 0,
ssh in:         "name" : "MyHyperionConfig",
ssh in:         "output" : "/dev/ttyACM0",
ssh in:         "rate" : 500000,
ssh in:         "type" : "adalight"
ssh in:     }
ssh in:     Opening UART: /dev/ttyACM0
ssh in:     HYPERION INFO: Not creating any smoothing
ssh in:     EFFECTENGINE INFO: 27 effects loaded from directory /storage/hyperion/effects
ssh in:     EFFECTENGINE INFO: Initializing Python interpreter
ssh in:     INFO: Hyperion started and initialised
ssh in:     INFO: Kodi checker created and started
ssh in:     INFO: Json server created and started on port 19444
ssh in:     INFO: Proto server created and started on port 19445
ssh in:     DISPMANXGRABBER INFO: Display opened with resolution: 1920x1080
ssh in:     BLACKBORDER INFO: threshold set to 0 (0)
ssh in:     BLACKBORDER INFO: mode:default
ssh in:     INFO: Frame grabber created and started
ssh in:     KODICHECK INFO: Kodi Connected
ssh in:     KODICHECK INFO: switching to VIDEO mode
ssh in:     BORDER SWITCH REQUIRED!!
ssh in:     CURRENT BORDER TYPE: unknown=0 hor.size=0 vert.size=0

with config

Code:

// DEVICE CONFIGURATION
    "device" :
    {
        "name"       : "MyHyperionConfig",
        "type"       : "adalight",
        "output"     : "/dev/ttyACM0",
        "rate"     : 500000,
        "delayAfterConnect"     : 0,
        "colorOrder" : "rgb"
    },

    // COLOR CALIBRATION CONFIG
    [...]
    // NO SMOOTHING CONFIG
    },

    // NO V4L2 GRABBER CONFIG
    // FRAME GRABBER CONFIG
    "framegrabber" :
    {
        "width" : 64,
        "height" : 64,
        "frequency_Hz" : 10.0,
        "priority" : 890
    },

    // KODI CHECK CONFIG
    "xbmcVideoChecker" :
    {
        "xbmcAddress" : "127.0.0.1",
        "xbmcTcpPort" : 9090,
        "grabVideo" : true,
        "grabPictures" : true,
        "grabAudio" : true,
        "grabMenu" : false,
        "grabPause" : true,
        "grabScreensaver" : true,
        "enable3DDetection" : false
    },

    // JSON SERVER CONFIG
    "jsonServer" :
    {
        "port" : 19444
    },

    // PROTO SERVER CONFIG
    "protoServer" :
    {
        "port" : 19445
    },

    // EFFECT PATH
    "effects" :
    {
        "paths" :
        [
            "/storage/hyperion/effects",
            "/usr/share/hyperion/effects"
        ]
    },

    // NO BLACKBORDER CONFIG
    // NO BOOTEFFECT CONFIG
    // NO BOBLIGHT SERVER CONFIG
    // NO JSON/PROTO FORWARD CONFIG

    // LED CONFIGURATION
    [...]

 

When disabling "grabber" in hypercon there is still no LED output.
Does KODI CHECK provide a framegrabber itself ? or do I nee additional plugins in Kodi ?

Code:

Hyperion Ambilight Deamon (1308)
ssh in:         Version   : V1.03.2 (brindosch-99d9396/d3713a8-1469452981
ssh in:         Build Time: Jul 25 2016 06:54:40
ssh in:     INFO: Selected configuration file: /storage/.config/hyperion.config.json
ssh in:     HYPERION INFO: ColorTransform 'default' => [0; 15]
ssh in:     HYPERION INFO: ColorCorrection 'default' => [0; 15]
ssh in:     HYPERION INFO: ColorAdjustment 'default' => [0; 15]
ssh in:     LEDDEVICE INFO: configuration:
ssh in:     {
ssh in:         "colorOrder" : "rgb",
ssh in:         "delayAfterConnect" : 0,
ssh in:         "name" : "MyHyperionConfig",
ssh in:         "output" : "/dev/ttyACM0",
ssh in:         "rate" : 500000,
ssh in:         "type" : "adalight"
ssh in:     }
ssh in:     Opening UART: /dev/ttyACM0
ssh in:     HYPERION INFO: Not creating any smoothing
ssh in:     EFFECTENGINE INFO: 27 effects loaded from directory /storage/hyperion/effects
ssh in:     EFFECTENGINE INFO: Initializing Python interpreter
ssh in:     INFO: Hyperion started and initialised
ssh in:     INFO: Kodi checker created and started
ssh in:     INFO: Json server created and started on port 19444
ssh in:     INFO: Proto server created and started on port 19445
ssh in:     KODICHECK INFO: Kodi Connected
ssh in:     KODICHECK INFO: switching to OFF mode
ssh in:     KODICHECK INFO: switching to VIDEO mode

 

same problem here. Can you please tell me how did you solved this prob?