Article Number: 000191371
For help with video or display issues such as: no video or no display, blank or black screen, flickering, resolution or color issues, horizontal or vertical lines, etc. refer to an expanding section below.
The Dell C1422H monitor has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD), anti-static, and LED backlight.
The key features of the Dell C1422H monitor are:
This section provides some specifications of the Dell C1422H monitor. To learn more about the specifications of the Dell C1422H monitor, refer to the User's Guide at the Dell Manuals website.
|Ports and connectors||
The protective sleeve that is shipped with the monitor can protect your monitor from damage when shipping or storage.
The following illustrations show how to use the protective sleeve:
(Figure 1: Dell C1422H Monitor Protective Sleeve)
Where you put your monitor is almost as important as what model you buy. The monitor should be directly in front of you, at an arm’s length away (between 20 to 40 inches from your eyes). The top edge of the screen is at eye level when you are sitting comfortably. You may need to adjust your chair height or the height of the monitor to achieve this.
To connect your Dell C1422H monitor to your personal computer:
There are two kinds of normal usage for C1422H: Laptop and mobile phone
(Figure 2: Dell C1422H Monitor Laptop Connection)
(Figure 3: Dell C1422H Monitor Mobile Phone Connection)
There are two kinds of normal usage for C1422H: Laptop and mobile phone with power adapter.
(Figure 4: Dell C1422H Monitor Laptop Connection with Power Adapter)
(Figure 5: Dell C1422H Monitor Mobile Phone Connection with Power Adapter)
Please see the illustration below for an example of the tilt range.
(Figure 1: Dell C1422H monitor Tilt adjustment).
Use the buttons on the edge of the monitor to adjust the image settings.
(Figure 1: Dell C1422H Monitor OSD controls)
|Button #||Control Buttons||Description|
|1||ComfortView||To launch the On-Screen Display (OSD) menu, or to access the list of items/options of a menu item.|
|2||Brightness/Up/[+]||Use the Up button to increase values or move up in a menu.
|3||Brightness/Down/[—]||Use the Down button to decrease values or move down in a menu.
ComfortView = ON
ComfortView = OFF
If your Dell monitor has a blank or black screen, fuzzy or blurry image, flickering, distorted, or any other screen abnormalities, running a diagnostic test helps determine if the Dell monitor is functioning normally. To learn more about diagnostic options on a Dell monitor, refer to the Dell knowledge-base article: How do I run diagnostics on a Dell monitor?
It is always essential to isolate the monitor while troubleshooting your computer for the following scenarios:
Your monitor provides a self-test feature that allows you to check if your monitor is functioning properly. If your monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps:
(Figure 1: Self Test)
If your monitor remains dark after step 5, check your video controller and computer
Your Dell C1422H 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.
When you notice screen abnormalities like distortion, clarity, horizontal or vertical lines, color fade, it is always a good practice to isolate the monitor by running the Built-In Diagnostics.
During the LCD Monitor manufacturing process, it is not uncommon for one or more pixels to become fixed in an unchanging state. Which is hard to see and does not affect the display quality or usability. For more information, refer to the Dell knowledge-base article Dell LCD Monitor Pixel Guidelines.
This section provides information about troubleshooting steps that can help resolve the most common issues with the Dell C1422H monitor. Alternatively, to learn more about troubleshooting common issues on Dell monitors, refer to the Dell knowledge-base article Troubleshooting Display or Video Issues on a Dell Monitor or use our Monitor self-help Guide.
|Common Symptoms||Possible Solution|
|No Video - Power LED Off||
|No Video - Power LED On||
|Intermittent charging when using USB Type-C connection to the computer, laptop, and so on||
Using Windows Display Settings
In Windows 10, Windows 8 or 8.1, and Windows 7:
Using Nvidia Control Panel
To change the resolution using the Nvidia Control Panel:
Using AMD Catalyst Control Center
To change the resolution using the AMD Catalyst Control Center:
The Dell C1422H monitor has two built-in diagnostics that are available:
To learn how to run a diagnostic test, refer to the Running Diagnostics on Dell C1422H Monitor section of this Dell knowledge-base article.
The Troubleshooting section of this Dell knowledge-base article provides information about troubleshooting common issues with the Dell C1422H monitor. The section has troubleshooting steps on how to resolve power issues, video issues, color or clarity issues, distortion issues, horizontal or vertical lines, brightness issues or pixel issues, and so on.
10 Sep 2021