[Q] Haptic/Vibration Feedback topic

Hi guys, sorry for my stupid question. why can't my phone unable to use haptic/vibration feedback? I already checked the option in the setting and still unable :confused:
thank you!

note: I use CM11 by @Rox and already installed polish vodka's fix (http://forum.xda-developers.com/show....php?t=2416197)