If you select a static color, do they flicker too? how long are the cables from the pi to the leds? which cable did you use? did you look in the live preview in webUI if there is a flickern too?
yes, it is the same problem with a static color. The flickering doesn't appear on the UI. I'm using a standard LED Wire (
Alles anzeigenyou have a grounding problem
i think your problem is GND ( ground) related,
try to GND to your Raspi and leds and connect the Raspi to the same PSU and leave the powerbrick out of the story.
you have a lot of juice ( more then enough ) so you can power Raspi/leds/USB capture device from same PSU
or; connect a groundwire between the V- of PSU to your GND of your powerbrick
Thanks, I will adapt my setup. I don't know why i didn't think of powering everything with the PSU.
Hopefully this will fix everything.