LG E2040T-PN - Manual (Page 14)

Control Panel Functions
13
AUTO Button
AUTO IMAGE ADJUSTMENT
When adjusting your display settings, always press
the AUTO button before entering the On Screen
Display(OSD). (Only Analog Mode)
This will automatically adjust your display image to
the ideal settings for the current screen resolution
size (display mode).
The best display mode is
E1940S : 1360 x 768
E2040S : 1600 x 900
E2240S/E2340S : 1920 x1080
Use this button to turn the display on or off.
The power indicator stays white if the display is running
properly (On Mode). If the display is in Sleep Mode
(Energy Saving), the power indicator is blinking white.
Power Button &
Power Indicator
Exit the OSD(On Screen Display). EXIT Button