Display not going to sleep

[axeldtf]

My MBA is set to go to sleep 3 minutes after no activity. Sometimes it works and sometimes it doesnt. I have a hot corner set for this and that seems to work fine. Could there be something preventing the display going to sleep?

 

[auxbuss]

Could be. There's a column in Activity Monitor that you can add to find out. It's labelled: Preventing Sleep.

You can also run `pmset -g assertions` and look for sleep related items in the Listed by owning process section.

 

[axeldtf]

excellent.. thanks for the advice.. i'll check that out.