mahjongg wrote:The problem isn't the PI! The problem lies in the fact that that the keyboard is susceptible to unstable/lower power, which is caused by a bad PSU or power cable, use another PSU/cable or another (no frills) keyboard, and the problem will go away!
also you are reacting to an ancient thread.
PSU is new, rated at 1A. On load voltage on Pi board is 4.93 V which is quite good.
Keyboard batteries are new and keyboard works perfectly on 4 other computers and over considerable distance. (Running Linux too)
The USB transmitter/Rcvr is rated at a low 50mA.
The reason the thread is ancient is of course the problem has always been there and remains for many people.
I will buy another keyboard, a USB wired type, NOT MS of course.