Adding Custom resolutions in Linux Mint – Cinnamon without manually editing files

First find out where you are starting: black@EliteBookLinux:~$ sudo xrandr -q Screen 0: minimum 320 x 200, current 5440 x 2160, maximum 16384 x 16384 LVDS connected 1600×900+0+1145 (normal left inverted right x axis y axis) 345mm x 194mm 1600×900 59.98*+ 1440×900 59.99 1280×854 59.95 1280×800 59.96 1280×720 59.97 1152×768 59.95 1024×768 59.95 800×600 59.96…