[SOLVED] Keyboard backlight stops working after not using for a while

[AMACB_]

I have a Ducky ZERO 3108 mechanical keyboard with a blue backlight. I've noticed that after long periods of not using it (i.e. having it connected to a powered off PC), the keyboard backlight stops working when used again, but then turns back on after a while (when connected to a PC that is powered on). This has happened to me twice now. About 8 months ago, I left it off for around 1 week and it took a few hours for the backlight to turn back on. And, just recently, I left it off for around 2 weeks and it took around 3 days for it to turn back on. Does anyone have any idea what could be causing this?

 

[Lutfij]

Welcome to the forums, newcomer!

You can try and take the keyboard to a donor system and see if that issue is replicated. You may want to make sure you're on the latest BIOS for your motherboard while you've reinstalled all chipset and USB drivers.

Check and see that you're on the latest version of Windows 10(assuming you're on it since you didn't mention it above).