My monitor does not turns off after 1 min i have set my monitor to turn off afte

[Guest]

Hello,
my question is hat i was previously turning off my monitor through power management and it worked well but now it is unable to turn off my monitor and also my screen saver also have been disabled i have set 2mins to turn off monitor and 1 mins to start screen saver please help me its very vital at my home

 

[mosox]

Can you say what mobo do you have? If you save anything else in your BIOS it reverts back?

 

[mi1ez]

what OS?
what monitor?
what interface?