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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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Half of display boards not showing red #1601

Open emackinnon1 opened 10 months ago

emackinnon1 commented 10 months ago

Issue and Steps to Reproduce

I have a Raspberry Pi Zero 2 W, an Adafruit Bonnet, and an Adafruit led matrix (plus the power cord, ribbon cables, etc needed to wire everything up). I have gotten both the examples in the /examples-api-use directory and the samples in the /bindings/python/ directory to mostly work, but half of the boards does not show red.

I thought it may have been a faulty board, but I tried three different boards and got the same result. Then I tried to switch out the Adafruit bonnet but got the same result. I have tried running on both Raspberry OS Lite (bullseye) and DietPi. I am waiting to get a new Rasberry Pi Zero 2 W in the mail to give that a try, but I am doubtful that it is the problem since I have no indications that something isn't running correctly. Either way, I thought I would try raising an issue here because I am wondering if this is a software/config issue and not a hardware one. Has anyone else seen something like this?

Versions

Raspberry Pi Zero 2 W with Raspberry OS Lite Bullseye Adafruit Bonnet

Screen

20231106_173334 20231106_173336

https://github.com/hzeller/rpi-rgb-led-matrix/assets/49004020/763275f8-2e8b-4f86-852e-232fa268b640

20231106_173719 shots

Expected

I expected the matrix to show full RGB colors across the board.

Actual

The matrix doesn't show red on one half of the board.

Additional Details

runezor commented 8 months ago

Curious about this as well. I've got a 32x64 board where a square of 16x16 doesn't show red. I wonder if it's a similar issue