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When you close and then reopen the lid on a laptop, the Connecting and Configuring Displays (CCD) feature in Windows automatically reverts the display mode to the last active selection. This behavior is by design in Microsoft Windows. Information about the maximum vertical viewing angle, within which the image on the screen is of acceptable quality.
A productivity hub: Transform your monitor into a productivity hub with RJ45 for wired Ethernet connectivity and USB-C providing up to 65W power delivery — all in a clutter-free setup.This section provides information about troubleshooting steps that can help resolve the most common issues with the Dell P2722H monitor. Alternatively, to learn more about troubleshooting common issues on Dell monitors, see the Dell knowledge-base article Troubleshooting Display or Video Issues on a Dell Monitor or use our Monitor self-help Guide. Common Problem
The static contrast shows the ratio between the brightest and the darkest color, which the display can reproduce simultaneously, for example, within one and the same frame/scene.Your Dell P2722HE monitor has a built-in diagnostic tool. It helps to determine if the screen abnormality you are experiencing is a problem with the monitor or with the video card on your computer.