In Ubuntu 17.04 there was 'Rotation' menu in Display tab. But now in new version of Ubuntu, there's still a Display tab but no more rotation menu. Now I can't turn that off again since I upgraded to 18.04 LTS.
Just updated from 16.04 LTS to 18.04 LTS. New version of Ubuntu doesn't contain any power off button in both lockscreen and homescreen, obviously. Adding some gnome extensions couldn't help me either.
Please help me out. Thank you, guys.