RGB turned on, but OLED does not display anything

[Geongsi]

RGB turned on, but OLED does not display anything

[p-tenz]

Same here.
If I type
python3 ./luma.examples/examples/sys_info_extended.py
it works, but not after reboot

[bmartino1]

Working on a Old absminitowerkit
have a pie4 runnign debain and hit this issue...

I like to run things as root. and be root especail since we need to add and edit thing to the debain 12 kerneal to make the oled, fan and rgb work...

As I ran into the same issue on Debian 12 (OMV base) with a Raspberry Pi 4 in the GeeekPi ABS Mini Tower. Here's what worked for me:

If python3 ./luma.examples/examples/sys_info_extended.py works but not on boot, it's likely due to either:
*Things to check:

Missing I2C/GPIO config

Missing Python libraries

The systemd service failing silently

--I usual sudo su and run things as root...

sudo raspi-config

Make sure you have the i2c, remote gpio andserial and 1-wire interfaces enabled onteh pie device...

In Pie Config Then enable under Interfaces:

I2C

1-Wire

Serial

Remote GPIO

git clone and run the install per read me page:

sudo su
cd ~
git clone https://github.com/geeekpi/absminitowerkit.git 
cd absminitowerkit/
./install_bookworm.sh 

once that finishes -It may reboot

Install the additional Dependencies (Debian 12 / Bookworm):

apt update && apt install -y python3-pip python3-dev python3-rpi.gpio python3-venv
pip3 install --upgrade pip
pip3 install --break-system-packages adafruit-blinka adafruit-circuitpython-neopixel RPI.GPIO luma.oled

*You must use --break-system-packages on Debian 12+ due to PEP 668 restrictions. and running as root due to kernel module driver changes...

Test OLED
python3 /usr/local/minitower/sysinfo.py

I just wanted the oled, not the rgb... and the fan to be 24/7 for air flow...
Optional: RGB LED Control
To disable the RGB light on boot (e.g., if it's always on):

example code:
python3 /root/turnoff_leds.py

--root@pi4-omv:~# cat turnoff_leds.py:

import board
from neopixel import NeoPixel

np = NeoPixel(board.D18, 4)

np.fill((0,0,0))

and made a at boot service...

# /etc/systemd/system/minitower_disable_led.service
[Unit]
Description=Disable RGB LED on boot
After=multi-user.target

[Service]
Type=oneshot
ExecStart=/usr/bin/python3 /root/turnoff_leds.py
RemainAfterExit=true

[Install]
WantedBy=multi-user.target

enabling my servce to rutn off rgb and fix the oled...

systemctl daemon-reload
systemctl enable minitower_disable_led.service

hope this helps as this appears to be a banded....