Change the input color format to PC RGB or YPbPr in the Color Settings On-Screen Display Menu (OSD). Change the color-setting mode in the Color Settings On-Screen Display Menu (OSD) to Graphics or Video, depending on the application.

Your Dell P2418HT monitor has a built-in diagnostic tool that helps to determine if the screen abnormality you are experiencing is a problem with the monitor or with the video card on your computer. Use the buttons at the bottom of the monitor to access the On-Screen Display (OSD) menu of the monitor. To access the On-Screen Display (OSD) menu, press Button 3 at the bottom of the monitor. A few permanently bright or dark pixels are considered normal by industry standards. The exact number of pixels allowed varies depending on the monitor. Refer to Dell LCD Pixel Guidelines for more details.Use a USB-extender cable to position the wireless USB receiver as far away as possible from the USB 3.0 port. It is always essential to isolate the monitor while troubleshooting your computer for the following scenarios: Unplug and replug the power cable from the power adapter to allow auto‑recalibration of the touch module. Handle your monitor with care as a darker-colored monitor may get scratched and show white scuff marks more than a lighter- colored monitor.

Turn off your monitor and reconnect the video cable: then turn on both your computer and the monitor. Ports & Connectors - Refer to the User's Guide for your Dell P2418HT monitor for more information on the Ports & Connectors available on your Dell P2418HT monitor. Make sure that the video cable connecting the monitor to the computer is connected properly and is secure.Attaching the stand - Refer to the Setting Up The Monitor section in the User's Guide on Connecting the Stand to your Dell P2418HT monitor. No POST - Your computer is not showing any indication of activity, the screen might be blank and will not display the Dell logo during start-up. If the display cannot be detected by the computer, power off/on the monitor or unplug and replug the USB cable. Dim/discolored video can be caused by the video cable, so try reseating the cable and swapping with a known good part. Note: Any changes you make are automatically saved when you move to another menu item, exit the OSD menu, or wait for the OSD menu to automatically close.

Note: You can run the built-in diagnostics only when the video cable is unplugged and the monitor is in self-test mode.Use a lightly-dampened, soft cloth to clean the monitor. Avoid using detergent of any kind as some detergents leave a milky film on the monitor. Press Button 1 or Button 2 to highlight Factory Reset option in the menu and press Button 3 to select. Wireless USB peripherals responding slowly or only working as the distance between itself and its receiver decreases To clean your anti-static screen, lightly dampen a soft, clean cloth with water. If possible, use a special screen-cleaning tissue or solution suitable for the anti-static coating. Do not use benzene, thinner, ammonia, abrasive cleaners, or compressed air. No Video - You are unable to see any display on the screen, able to hear the windows chime but no display is seen.