... unless...
I tried this in windows:
(SmalltalkImage current vmVersion. -> 'Squeak3.10.2 of ''5 June 2008'' [latest update: #7179]')
InputEventFetcher deinstall; install.
InputEventFetcher default. -> an InputEventFetcher
It seems to work like a charm, doesn't that mean that VM IS SIGNALLING the inputSemaphore?