When you make the Mac go to sleep but it just stays on with the screen black, you can use the
pmset -g
to display you current power management settings and see the entry for sleep that will tell you the problem causing process PID
When you make the Mac go to sleep but it just stays on with the screen black, you can use the
pmset -g
to display you current power management settings and see the entry for sleep that will tell you the problem causing process PID