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The dynamic contrast shows the ratio between the brightest and the darkest color, which the display can reproduce over time, for example, in the course of playing a video. Disable the YCbCr setting from the video or graphics utility such as Intel HD Graphics Control Panel. On certain videos and applications with fast-moving images, imaging ghosting, which appears as a trailing shadow, may occur.
Information about the maximum vertical viewing angle, within which the image on the screen is of acceptable quality. Hard drive retention: Hard drive retention is not available on models with a soldered hard drive, including XPS 9315 2in1, Chromebooks or Venue tablets, except the Venue 11 Pro. Disable the YCbCr setting from the video or graphics card (GPU) utility such as Intel HD Graphics Control Panel The ratio between the horizontal and the vertical side of the display. Some of the standard and widely used aspect ratios are 4:3, 5:4, 16:9 and 16:10. Horizontal stripes when watching online videos using Microsoft Movies and TV app, Microsoft Internet Explorer or Microsoft Edge.
Key specs
The display mode on your computer reverts to Duplicate or Extend. This depends on which was selected before you changed to Second screen only or Projector only when you close and open the laptop screen. The most widely used panels are those with 6, 8, and 10 bits for each of the RGB components of the pixel. They provide 18-, 24-, and 30-bit color, respectively. The storage temperature shows the range from a minimum to a maximum temperature, within which storing of the display is considered to be safe. Ensure that the video cable connecting the monitor and the computer is properly connected and secure. According to industry standards, a few persistently bright or dark pixels are normal. The number of pixels permitted varies depending on the display. See the Dell LCD Monitor Pixel Guidelines for more details.
The operating humidity shows the acceptable level of humidity, in which the display will function flawlessly. It sets a lower and an upper humidity level for safe operation and is measured in percentage. Information about the brightness of the screen. It is measured in candela per square metre (cd/m²).Dell P2421 does not support audio or sound using HDMI. Speakers or headphones must be connected using the audio connector on the computer. Information about the minimum amount of time, in which the pixels change from one color to another. Very often the manufacturer provides the response time for transition from grey-to-grey (G2G). All other products will be delivered via the fastest available method (excluding bank holidays and weekends) and generally within 3-5 days, depending on customer location. Approximate height of the display. If the manufacturer does not provide such information, the height is calculated from the diagonal and the aspect ratio.
Change the resolution using the video or graphics card (GPU) utility like Intel HD Graphics Control Panel. Due to different video formats (aspect ratio) of DVDs and videos, the monitor may display on the screen. 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. A few permanently bright or dark pixels are considered normal by industry standards. The exact number of pixels that are allowed varies depending on the monitor. Refer to Dell Monitor Quality and Pixel Policy for more details. The pixel pitch shows the distance from the centers of two neighboring pixels. In displays, which have a native resolution (the TFT ones, for example), the pixel pitch depends on the resolution and the size of the screen.Change the color-setting mode in the Color Settings using the On-Screen Display (OSD) menu to Graphics or Video, depending on the application. 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 of the number of pixels in a unit of length. With the decrease of the display size and the increase of its resolution, the pixel density increases. Approximate width of the display. If the manufacturer does not provide such information, the width is calculated from the diagonal and the aspect ratio. The operating altitude shows the maximum admissible altitude, at which the display will function flawlessly. Above this level it might not operate properly and/or might seize to function.Wireless USB devices responding slowly or only working as the distance between itself and its receiver decreases.
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