Hello mates.
I upgraded from Ubuntu Mate 16.04 to 18.04 and it was great no problem with the install. been using the old version for 2 years now and the upgraded to the new version a couple of months now.
I have this recurring problem. Sometimes when I turn on the laptop (HP Mini 210 4000) I can use my NIA Bluetooth headphone, but frequently when I turn on the laptop I can’t use bluetooth coz there is no bluetooth adapter. So one day it is good, the next day no bluetooth adapter.
Can anyone might help me why this problem is on and off recurring? Thanks in advance 
This is my headphone
