darknessblades t1_itqzgnn wrote on October 25, 2022 at 5:41 PM

Which firmware does it use?

QMK? maybe try a VIA/VIAL version of said firmware, and see if you can add a slight delay to said key.

also try swapping it for a different key, it could be that the switch bounces in the housing [loose stem] causing a double input

_vastrox_ t1_itr21il wrote on October 25, 2022 at 5:57 PM

Setting a different debounce or delay for a single switch isn't possible in QMK firmware (and neither is it in VIA since that doesn't do anything different from QMK on the hardware side).

You have one value in the firmware config that is applied to the entire switch matrix scanning.

And since OP said that the issue went away after bending the pins of the switches it seems that this was simply caused by a worn out contact in the socket.
And not from a firmware issue.

Ram08 OP t1_itqzqej wrote on October 25, 2022 at 5:43 PM

I was on QMK then VIA at 8ms and they both had chattering. I moved to Glorious Core at 8ms and 16ms and it still had chattering until I bent the pins of the switches (same switches, never swapped them). Now using 8ms and it's flawless!

darknessblades t1_itr02j0 wrote on October 25, 2022 at 5:45 PM

Maybe try a different switch? see what effect that has.

it should give you a idea if it is the switch or the PCB

Ram08 OP t1_itr0beg wrote on October 25, 2022 at 5:46 PM

I moved through 4 different switches, all of them had chattering: Glorious Panda, Boba, Purple Panda, then Azure Dragon.

darknessblades t1_itr3zpn wrote on October 25, 2022 at 6:10 PM

If that is the case, then it might be something with the PCB that causes the issue.

If you are still under warranty, contact the manufacturer

Ram08 OP t1_itr462k wrote on October 25, 2022 at 6:11 PM

This is my second GMMK Pro and both had chattering. The second one was sent to me several months ago. Anyways, my problem was totally fixed.