ТАК.. вот и приехали... официальный ответ официального саппортера на вопрос софтварная ли проблема с МЗ...

"No, it's not a software setting - it's something that's in the hardware which the software can't touch."
"The deadzone is set in the hardware so there's no way that drivers or software can change this."

Вот и писец всем надеждам