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hzeller / rpi-rgb-led-matrix

Controlling up to three chains of 64x64, 32x32, 16x32 or similar RGB LED displays using Raspberry Pi GPIO
GNU General Public License v2.0
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Flickering on rpi4 with a new adafruit RGB matrix hat #1585

Open switchmaxfx opened 1 year ago

switchmaxfx commented 1 year ago

i was having some flickering issues with lines of pixels that have now been fixed with a more powerful power supply and new OS. im running diet pi and no longer get pixel flickering but i do get a random brightness flicker that still continues to persist and im not sure what else to try. Im using 2 64x64 led panels with the additions to the hat like connected 4 and 18 and the soldered panels. my command is sudo ./led-image-viewer -f -s -w3 -C *.png --led-cols=64 --led-rows=64 --led-chain=2 --led-gpio-mapping=adafruit-hat-pwm --led-slowdown-gpio=4 --led-brightness=100

jaygarcia commented 1 year ago

@gguy825 , have you performed the following?

https://github.com/hzeller/rpi-rgb-led-matrix#cpu-use

switchmaxfx commented 1 year ago

@gguy825 , have you performed the following?

https://github.com/hzeller/rpi-rgb-led-matrix#cpu-use

Sorry for late reply. Yea I added that. so my cmdline.txt is currently this. Just making sure this is correct right? 

root=PARTUUID=dc9fd960-02 rootfstype=ext4 rootwait net.ifnames=0 logo.nologo console=tty1
isolcpus=3
bsparacino commented 7 months ago

@gguy825 Late reply but my solution has been to overvolt the power supply to 5.1-5.2v