Backlight gets changed when F1 and F2 are pressed

[alediaz84]

Hi! Just tested this solution, it works as described. GREAT WORK!

I wanted to open this ticket to mentioned that I've noticed that when FN + brightness down (F1) or FN + brightness up (F2) is used the brightness gets changed when the OS is detecting that F1 and F2 is being pressed. In a similar way, if function keys are configured by default, pressing F1 and F2 will change the brightness.

Is there any way to avoid this? Will this require further changes in the custom firmware and reflashing?

[Sjenja87]

Good observation, but I dont know if a changing the FPGA code could fix this. I am only probing one pin of the keyboard, if we are lucky the "fn" key also sends its signal on that pin and then you could detect it and ignore any "F1" and "F2" key, if not I have no way of knowing if the "fn" key is pressed.

[alediaz84]

I wish I knew how to do it, but that's beyond my knowledge. However, I can assist with testing as long as I have this Mac.

[Sjenja87]

I really dont have the time at the moment. :(

[Sjenja87]

But if you have a oscilloscope or a logic analyzer you can start by probing the keyboard pin when the fn is pressed, and look if there is a signal.

[alediaz84]

Hi, sorry for the delay in my reply.
Currently I do not own an oscilloscope or logic analyzer 😞