Automating keyboard backlight switching.

nicknike · 10 Mar 2020

Hi.
I have a Perixx 324 keyboard with backlighting. Fn+Home keys toggle the lighting.
When my computer boots-up, the keyboard backlighting lights up. That’s good.
When I close down the computer, the backlighting remains on. That’s not so good.

I have a shortcut to shut the computer down. What can I add to the code to operate the FN+Home keys so that the backlighting turns off.
The coding in the shortcut is

C:\Windows\System32\cmd.exe /c shutdown /s /f /t 0

Or can you tell me another way to operate the backlight off command when I shutdown without having to use the Fn+Home keys?

Try3 · 10 Mar 2020

Backlighting uses utilities provided by the keyboard maker so you'll need to ask them how to control it.

Denis

nicknike · 11 Mar 2020

Solved.
I enabled ErP in the BIOS. This disables wake-up by keyboard or mouse. I don't use sleep mode. I presume this turns off power to the USB ports after shut-down.
Nick

Berton · 11 Mar 2020

nicknike said:

Solved.
I enabled ErP in the BIOS. This disables wake-up by keyboard or mouse. I don't use sleep mode. I presume this turns off power to the USB ports after shut-down.
Nick

Most likely that was the issue. The usual shutdown of a modern computer still keeps power to the motherboard and in turn to the USB ports, useful for charging SmartPhones but not so much for what you saw. Doing a hard shutdown by holding the power button in for 6-10 seconds after Windows seems to be off usually works.