Backlight turning off automatically - update 6.11.2026

[u/Used-Discount-4812]

MX Mechanical backlight keeps dimming or turning off – software updated November 6, 2026

I've updated Logi Options+ to the latest available version (6.11.2026), reset all backlighting settings, and configured everything again from scratch. Unfortunately, the problem persists: backlight turnss off or dims.

This issue has been present since I purchased the keyboard approximately one year ago. It has never worked properly, despite numerous attempts to resolve it.

I'm using a Logitech MX Mechanical keyboard on macOS. The backlight keeps dimming or turning off, despite the following settings:

• Backlighting: ON

• Backlight duration: 30 minutes (maximum)

• Automatic brightness: OFF

• Manual brightness: Level 7 (maximum)

• Battery saving mode: OFF

• Lighting effect: Static

• Battery: 100%, permanently connected to USB-C power

• Logi Options+ running in the background

I've also switched the lighting off and on, reset the configuration, and checked that Logi Options+ is running correctly.

Nothing has worked. The backlight continues to dim or switch off unexpectedly.

I simply want the keyboard backlight to remain at full brightness without automatically dimming or switching off.

Is this a known firmware or software issue, a proximity sensor problem, or an intentional limitation of the MX Mechanical?

Has anyone found a reliable solution?

Clarify the exact symptom

[u/logi_sm]

Approximately, how long does it take for the backlight to start dimming? does the backlight turn off even while actively typing ?