I have Dell N5110 laptop bought in 2011 (still working). Whenever I start my laptop after hibernation/ sleep/ lock/ closing the flap for a long duration the Touchpad Touch stops working but its keys would work. I tried restarting, Shutdown and start my laptop, but the problem remains. It works when I force shutdown and start using the power button. My laptop got repaired about 6 months back and this problem got recently started. Any fixed solution?