Macbook air with 10.10.1 keyboard and touchpad stop responding after login screen

Keyboard and touchpad works only at login screen.
I have tried all the PRAM and SMC. reset stuff.
Safe mode, repair etc. Creating another account is not helped either.
I am also using 10.10.1 with macbook air.
I have also called the apple tech support and no results!
And this is obviously a software bug from so called robust yosemite!
Same here!
Macbook air built-in keyboard/trackpad only work at login screen

  You may have to take the computer to the Apple store to have it checked out.
Genius Bar reservation
http://www.apple.com/retail/geniusbar/
Best.

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