Why isn't my power button working?

[AC Question]

After installing smart launcher on my cyanogen mod 11(nexus S ). power button is not working not even with default launcher. how to make that button work????

 

[Golfdriver97]

Re: Problem with power button!!!!

Welcome to the forums. It might be a bug in the app. If you have a Nandroid from before you installed that app, I would restore it and see if the power button works.