ubuntu can not open settings code example
Example: settings doesn't open ubuntu
#install
sudo apt-get update
sudo apt-get install --reinstall gnome-control-center
#Open Settings by
gnome-control-center display
gnome-control-center
#install
sudo apt-get update
sudo apt-get install --reinstall gnome-control-center
#Open Settings by
gnome-control-center display
gnome-control-center