Laptop SUPER Key Glitches With Backlight

When ASUS TUF Gaming F15 FX506LHB’s keyboard backlight starts acting up after enabling it, the SUPER key suddenly becomes unreliable - especially during backlight toggles. Even turning the light off doesn’t fix it. This isn’t a software bug: it’s a hidden clash between Windows’ SUPER modulator and ASUS firmware via asus_wmi. Users report SUPER + Enter failing mid-use, and breathing mode (Fn + Super + Left/Right) freezing. The key issue: backlight commands trigger a firmware state that disables SUPER as a keyboard modifier. The fix? Bypass the firmware path: set brightness directly with echo 1 | sudo tee /sys/class/leds/asus::kbd_backlight/brightness. Keep key usability intact - don’t let backlight settings silence your command key. Is your SUPER key quietly bowing out? Check for firmware triggers, not just drivers.