Kimdowan

@hzeller I'm using Raspberry Pi 4. Then is it better to configure it in C language instead of Python? I want to solve the problem that the consistent flickering occurring...

@hzeller I just tested it with video-viewer, and the same thing happens with video-viewer. (Flicker occurs once every two seconds.) ./video-viewer --led-rows=64 --led-cols=128 --led-chain=3 --led-parallel=3 --led-gpio-mapping=regular --led-pwm-bits=7 --led-pwm-lsb-nanoseconds=50 --led-slowdown-gpio=4 test.mp4

@hzeller Using the default values ​​will cause more flickering. I am currently using the Raspbian GUI version. Can I solve the problem by using the Lite version or Dietpi? (I'm...

@hzeller Can I use Dietpi?

@hzeller I tried it with Raspberry Pi Lite, but the same symptoms persist.

@hzeller I tested as below, but the resolution is not correct. What should I do? sudo ./video-viewer --led-rows=64 --led-cols=128 --led-chain=3 --led-parallel=2 --led-slowdown-gpio=5 -T2 --led-no-drop-privs /dev/video0 

@hzeller I executed the same command, but when I unplugged and replugged the HDMI to USB, it showed a different resolution. How can I solve this issue? Just a moment...

@hzeller Thanks for your help. I've been testing it for a few weeks. Noticeable flicker is almost eliminated by setting gpio-slowdown, pwm-lsb-nanoseconds, pwm-bits, but subtle flicker still occurs, especially if...