Sense 2 settings

[PeterPuck]

When I go into settings and hit Display to initiate a change, The Brightness area for example is not allowing me to tap on which setting I would like. Other areas is settings are like this too. There are some areas that I am allowed to change the settings. These seem bright and lit up, the others seem dull and just not responsive

Thanks for any help

[JohnnyRow]

I'm guessing you accidentally have 'Sleep Mode' turned on.  That locks some other settings, such as keeping b rightness as Dim.
From home screen, swipe down to Quick Settings; half moon top middle is sleep mode; toggle that off.In fact you probably want everything off/white unless you have intentionally turned it on.

These buttons are easy to get to accidentally and are one of the first things to check when things seem to be acting strangely.