Disable the LED on a g203 mouse
last updated: Oct 27, 2025
I'm annoyed by the bright LED on my Logitech g203 mouse, but I also refuse to install Logitech drivers which are consistently awful, so I had just accepted that I'd have to be annoyed by it.
Until today! I got annoyed enough that I looked around and found out that somebody already figured out how to do it, and with a little tweaking I was able to use their solution on my mac to disable the LED without installing a driver.
Here's what I ended up with after a few minutes of hacking:
- Install libusb:
brew install libusb - clone smasty/g203-led and cd into
g203-led - edit
requirements.txtto upgrade thepyusbversion to 2.3.1 pip install -r requirements.txtto install pyusbsudo python g203-led.py lightsync solid 000000
That's it! Thank you very much to the open source goblins who figured this out.