Dell Monitor Power on but VGA not working? | Dell 18 inch Monitor 1366 X 768 Pixels | new video 202

Dell Monitor Power on but VGA not working? | Dell 18.5" (47 cm) Monitor 1366 X 768 Pixels at 60 HZ, Twisted Nematic, LED, Anti-Glare, 1 X HDMI (Vr 1.4) & VGA and Tilt |D1918H -Black