Perform monitor self-test feature check to determine if the scrambled screen appears in self-test mode.

n\nEco-conscious packaging: To reduce our impact on the environment, we promote responsible disposal of our packaging through recycling. 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. The connection with only one cable gives us the ability to quickly change positions without tiring of cabling.By using our site you agree to the storing of cookies on your device to enhance your site experience and for analytical purposes. No Video - You are unable to see any display on the screen, able to hear the windows chime but no display is seen. Pixel density is a measurement of a screen's resolution, expressed as the number of pixels per inch (PPI) on the screen. When you notice screen abnormalities like distortion, clarity, horizontal or vertical lines, color fade etc. Eco-conscious packaging: To reduce our impact on the environment, we promote responsible disposal of our packaging through recycling.

To learn how to run a diagnostic test, refer to the Running Diagnostics on Dell P2421DC Monitor section of this Dell knowledge-base article. Information from the manufacturerThe power of USB-C Save time with USB-C: Save up to 72% of workspace setup time with single cable connectivity. Recycled plastics: We reduce our environmental impact with over 75% of our select monitors containing at least 25% post-consumer recycled plastics through Dell’s closed loop recycling program. Productive at every level: Easy Arrange allows you to easily tile multiple applications across one or more screens with 38 pre-set window partitions and the ability to personalize up to five windows, giving you improved multitasking abilities. With quick cyclic switching between different color tones, an illusion for a new intermediate color tone is created.There are different types of matte and glossy coatings, each of which has its own advantages and drawbacks. Make sure that the video cable connecting the monitor to the computer is connected properly and is secure.

Power supply and consumption Information about the power supply and consumption, energy efficiency class, etc. Dell P2421DC Monitor Usage and Troubleshooting Guide Learn how to set up and use Dell P2421DC monitor. Tilt adjustment enables a user to change the viewing position of the display, creating a more comfortable view of the screen.A curved screen is designed to better fill a user's field of vision, giving the viewer a sense of being immersed in the image. Ideal for collaboration: Single-cable connectivity enables quick transitions from your desk and offers the flexibility of connecting to multi-vendor USB-C systemsi. Customizable comfort: Tailor your workspace to your specific needs with VESA-compatible mounts and standsi. Each has its own specific features - viewing angles, color reproduction, response time, brightness/contrast, production cost, etc.