LEDs freeze on startup

  • Setup:

    • Pi 3B+
    • LibreELEC 9.2.6
    • hyperion.ng alpha9 (installed with script from paulchen.panther)
    • LEDs are SK6812
    • Wire from PI to LEDs is shielded
    • Power to stripe on two opposite corners
    • 100Ohm resistor on data wire
    • Config:

      • 166 LEDs
      • WS281x (PWM) on GPIO18
      • RGBW enabled



    I got this running normally for one time on a test-setup. Afterwards i did a shutdown and rerouted the wires to the final layout (no connections changed, just unplugged and replugged them). From this on i got the following error:


    On startup there is like 1 or 2 seconds of the boot-animation (knight rider in my case) and then the animation freezes and the first 2-3 LEDs are white or green (looking like there is noise on the wire or so, but i use a shielded wire and a 100Ohm Resistor to minimize these effects). On the webinterface i can see the video feed correctly and if i select a color from my app the preview in the webview changed the color, but it is not applied to the real leds. If i stop and start the hyperion service all LEDs are flickering random (brightness of flickering changes with the USB grabber enabled).


    Anyone got a suggestion to this?

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