Every time I run Graphical aplication as root, it shown an error.
$ sudo grub-customizer
No protocol specified
Unable to init server: Could not connect: Connection refused
(grub-customizer:9912): Gtk-WARNING **: cannot open display: :0
and also some application that need a root access cannot be opened, even without a terminal.
What should I do? I haven’t experienced this in my old laptop with antergos.
Thank you :'3