I have a 2-year old Filco Majestouch and I'm having a problem with my "C" key.
It's registering a lot of double taps. I'm on Linux (Ubuntu).
Basically, if I type a word like "change", I get "cchange" or "ccchange". I've tinkered with Ubuntu's keyboard key repeat settings and added more delay but still not helping. The setting is for preventing keys from repeating if held down. So this must mean the key isn't, but just registering two keypresses or more.
Do you suggest taking apart the keyboard or cleaning? Can those help?
I prefer hardware solution to fix this than software filtering the extra keypresses.