[BUG] Legion Go 2 - Rainbow and Spiral lighting effects use max LED brightness, ignoring brightness setting

[Shaunathanz]

As stated in title, using Rainbow and Spiral lighting effects uses max LED brightness ignoring brightness setting.

Tested on Lenovo Legion Go 2. Controller firmware, system BIOS, CachyOS, HueSync, DeckyLoader all latest versions as of 3/30/2026.

[Jepl4r]

Can confirm this behavior. I'm using SteamOS 3.9 and only the speed setting works.

Only way to change the brightness is by using the built-in LED controls in the Steam settings.

The option to enable/disable the LED on the power button also doesn't work.