Hi, everyone
My system:
- Raspberry Pi 3B
- APA 102C -> 404 LEDs (130 up, 130 down, 72 left, 72 right)
- Power AC/DC MeanWell 55A
- Marmitek Split 312 UHD
- Marmitek Connect HA13
- LogiLink Grabber VG0001A
Software:
- Raspberry OS Desktop
- Hyperion NG
Setting:
- SSH on
- SPI on
- spidev.bufsiz=102400
- LED DI on pin 19 / CI on pin 23
- dtparame=audio=off
- hyperion runs as root
My problem:
LEDs work without Rpi 3 (picture 1), with they don't work.
Signal from grabber is detected. (Picture 2)
What am I doing wrong? Please help.
I'm a Raspberry newbie. 
Thanks for your help.
