Dell C2722DE Monitor Usage and Troubleshooting Guide
Summary: Learn how to use and troubleshoot issues related to the Dell 27 Video Conferencing Monitor - C2722DE.
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Instructions
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, so forth, see an expanding section below.
The key features of the Dell C2422HE monitor are:
- 60.47 cm (23.8 in.) active area display (Measured diagonally) 1920 x 1080 (16:9) resolution, plus full-screen support for lower resolutions.
- Integrated speakers (2 x 5 W).
- Removable pedestal stand and Video Electronics Standards Association (VESA) 100 mm mounting holes for flexible mounting solutions.
- Ultrathin bezel minimizes the bezel gap during multimonitor usage, enabling easier setup with an elegant viewing experience.
- Extensive digital connectivity with DP helps future-proof your monitor.
- Supports Picture By Picture (PBP)
- Single USB Type-C to supply power to a compatible laptop while receiving a video signal.
- USB-C and RJ45 ports enable a single-cable, network-connected experience.
- On-Screen Display (OSD) adjustments for ease of set-up and screen optimization.
- ≤ 0.3 W in Standby Mode.
- Optimize eye comfort with a flicker-free screen minimizes the hazard of blue light emission.
- The Monitor use Low Blue Light panel and compliance with TUV Rheinland (Hardware Solution) at factory reset/default setting mode
- The Monitor is designed with a Dell Power Button Sync (DPBS) feature to control personal computer power state from a monitor power button.*
- Certified for Microsoft Teams®
- Certified for Windows Hello® (Face Authentication) and supports Microsoft Cortana®.
WARNING: The possible long-term effects of blue light emission from the monitor may damage your eyes, including eye fatigue or digital eye strain. The ComfortView feature is designed to reduce the amount of blue light that is emitted from the monitor to optimize eye comfort.
WARNING: Do not mount this monitor in vertical orientation due to the risk of damaging the monitor.
This section provides some specifications of the Dell C2422HE monitor. To learn more about the specifications of the Dell C2422HE monitor, see the User's Guide at the Dell Manuals website.
| Panel technology |
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| Maximum resolution |
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| Viewing angle |
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| Contrast ratio |
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| Response time |
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| Color gamut |
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| Color depth |
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| Ports and connectors |
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| Integrated Speakers |
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Ensuring that your Dell monitor is set up properly. Assembling the monitor stand and setting up the monitor ergonomically. Connecting the cables and organizing them. This only helps make the viewing experience the best it can possibly be.
Attaching the stand
The standard monitor stand is detached when the monitor is shipped from the factory. To learn more about attaching the standard monitor stand. See the Setting Up the Monitor section in the User's Guide of your Dell C2422HE monitor.
To learn how to set up any other stand with a monitor, see the respective stand setup guide for setup instructions.
CAUTION: Do not remove the monitor from the packaging box before attaching the stand.
NOTE: The Dell C2422HE monitor is heavy; handle with extreme care. It is recommended to have two people to lift or move this monitor.
Ergonomics
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 at eye level when you are sitting comfortably. You may want to adjust your chair height or the height of the monitor to achieve this.
Connecting your monitor to the personal computer
To connect your Dell C2422HE monitor to your personal computer:
- Turn off your personal computer and disconnect the power cable.
- Connect the DisplayPort, HDMI, or USB Type-C cable to the corresponding video or display port on the back of your personal computer.
NOTE: Dell C2422HE supports display over USB Type-C port with Alternate mode DP 1.4. Ensure that the USB Type-C on your personal computer supports Alternate mode DP 1.2 or above.
To learn more about connecting your monitor to the personal computer, see the Dell Knowledge Base article: How to Connect a Monitor to a Dell Computer.
- Connect the USB upstream cable to the monitor and personal computer.
Dell C2422HE monitor orientation must always be in landscape mode. This includes any wall-mounted monitors and monitors on a stand. In a multiple monitor setup, the Dell C2422HE should not be rotated either to 180° (landscape) or 90° (portrait).
CAUTION: Dell C2422HE setup must comply with the recommended panel orientation and working angle only. Setting up the monitor in an orientation that is not recommended may damage the monitor and/or cause a safety hazard.
When setting up your Dell C2422HE monitor, ensure that the monitor front panel buttons is on the bottom right.
Using the Tilt, Swivel, and Vertical Extension
NOTE: This is applicable for a monitor with a stand. When any other stand is bought, see the respective stand setup guide for set-up instructions.
With the stand attached to the monitor, you can tilt and swivel the monitor for the most comfortable viewing angle.
Figure 5: Using Tilt and Swivel on a Dell C2422HE monitor
Before you rotate the display, extend the display vertically until the top of the stand riser, and then tilt the display backwards until the maximum to avoid hitting the bottom edge of the display.
Figure 6: Rotating of Dell C2422HE
WARNING: The monitor should not be rotated 180° (landscape). The monitor should not be orientated at 90° (portrait).
Use the joystick control on the rear of the monitor to make OSD adjustments.
Figure 1: Dell C2422HE Joystick Control
- Press the joystick button to launch the OSD main menu.
- Move the joystick up/down/left/right to switch between options.
- Press the joystick button again to confirm the settings and exit.
| Joystick | Description |
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Resetting a monitor to factory defaults can help resolve many video or display issues. To reset your Dell C2422HE monitor to factory default settings, follow these instructions:
- Press the joystick on the monitor to enter the On-Screen Display (OSD) Menu.
- Press up or down on the joystick to highlight Others option in the menu and press on the joystick to select.
- Press up or down to highlight Factory Reset option in the menu and press on the joystick to select.
- Press the joystick to confirm the reset action.
Figure 2: Dell C2422HE Front Panel Buttons
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, see 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:
- No Power - Your computer is not powering ON or showing any signs of power.
- 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.
- No Video - You are unable to see any display on the screen, able to hear the windows chime but no display is seen.
Your Dell C2422HE Monitor provides a self-test feature check that allows you to check whether the monitor is functioning properly. If the monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps:
- Turn off both your computer and the monitor.
- Unplug the video cable from the back of the computer. To ensure proper Self-Test operation, remove the video cables (VGA, DVI, HDMI, or DisplayPort) from the back of the computer.
- Turn on the monitor.
If the monitor does not sense a video signal and is working correctly, it should report a message advising that no video cable was detected:
Figure 2: No video cable detected
- Turn off your monitor and reconnect the video cable: Then turn on both your computer and the monitor.
- If your monitor screen remains blank after you use the previous procedure, check your video card (GPU) and computer, because your monitor is functioning properly.
Your Dell C2422HE monitor has an integrated 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.
- Toggle and hold the Joystick to the up or down or left or right for about 4 seconds until a pop menu appears.
- Toggle the Joystick to highlight the Diagnostics icon (far bottom icon), then press the Joystick, and a gray screen appears.
- Carefully inspect the screen for abnormalities.
- Toggle the Joystick up. The color of the screen changes to red.
- Inspect the display for any abnormalities.
- Repeat steps 5 and 6 to inspect the display in green, blue, black, white, and text screens.
The test is complete when the text screen appears. To exit, toggle the Joystick up again.
NOTE: If you do not detect any screen abnormalities upon using the integrated diagnostic tool, the monitor is functioning properly. Check the video card (GPU) and the computer.
If you notice any abnormalities during Built-In Diagnostics, you may get the monitor repaired or replaced if it is under warranty by contacting Dell Technical Support.
If you notice any abnormalities during Built-In Diagnostics, you may get the monitor repaired or replaced if it is under warranty by contacting Dell Technical Support.
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 do not affect the display quality or usability. For more information, see the Dell Knowledge Base article Dell Display Pixel Guidelines.
This section provides information about troubleshooting steps that can help resolve the most common issues with the Dell C2422HE 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.
| Common Problem | What User Experiences | Possible Solution |
|---|---|---|
| No Video - Power LED Off | No image |
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| No Video - Power LED On | No image or no brightness. |
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| Missing Pixels | LCD screen has spots. |
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| Stuck-On/Off Pixels | LCD screen has a bright spot. |
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| Brightness Problems | Picture too dim or too bright. |
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| Safety-Related Issues | Visible signs of smoke or sparks. |
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| Intermittent Problems | The monitor malfunctions on and off. |
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| Missing Color | The image does not have color. |
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| Wrong Color | Picture color is not good. |
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| Image Retention from a Static Image Left on the Monitor for a Long Period. | A faint shadow from the static image appears on the screen. |
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| Mic/Webcam does not work. |
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| Microsoft Teams/Skype for Business specific problems | ||
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| Specific Symptoms | What User Experiences | Possible Solution |
| The Teams button is not working. | A short press on the Teams button does not bring up the Teams application to the foreground. |
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| The Hookswitch button is not working. | A short press on the Hookswitch button does not answer the call. |
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| The Mute button is not working. | Press the Mute button does not mute or unmute the microphone. |
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| Webcam no image | Webcam no image when using Skype for Business (SfB) |
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| Webcam being occupied | The webcam being occupied and cannot be used. |
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| Troubleshooting USB Issues | ||
|---|---|---|
| Specific Symptoms | What User Experiences | Possible Solution |
| USB interface is not working. | USB peripherals are not working. |
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| The super speed USB 3.2 Gen 1 interface is slow. | Superspeed USB 3.2 Gen 1 peripherals working slowly or not working at all |
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| Wireless USB peripherals stop working when a USB 3.0 device is plugged in. | Wireless USB peripherals responding slowly or only working as the distance between itself and its receiver decreases. |
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| USB is not working. | No USB functionalities |
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To learn more about how to view or download the User Guides and Manuals for your Dell product. See the Dell knowledge-base article Manuals and Documentation for your Dell Product.
- Dell C2422HE - User’s Guide
- Dell C2422HE - Quick Setup Guide
- Dell C2422HE - Dell Display Manager User’s Guide
Frequently asked questions
Using Windows Display Settings
In Windows 10, Windows 8 or 8.1 and Windows 7:
- For Windows 8 and Windows 8.1 only, select the Desktop tile to switch to the classic desktop view.
- Right-click the desktop and click Screen Resolution.
- Click the dropdown list of the Screen Resolution and select 5120 x 1440.
- Click OK
Using Nvidia Control Panel
To change the resolution using the Nvidia Control Panel:
- Right-click the desktop and click Nvidia Control Panel.
- Click the + symbol next to Display on the left pane.
- Select Change Resolution under Display.
- In the dropdown menu on the right pane, select the resolution 5120 x 1440.
- Click Apply.
Using AMD Catalyst Control Center
To change the resolution using the AMD Catalyst Control Center:
- Right-click the desktop and click AMD Catalyst Control Center.
- Click the + symbol next to Display on the left pane.
- Select Change Resolution under Display.
- In the dropdown menu on the right pane, select the resolution 5120 x 1440.
- Click Apply.
NOTE: If you do not see the recommended resolution as an option. You may want to update the video card (GPU) driver by visiting the https://www.dell.com/support/drivers website or the video card (GPU) manufacturer's website. To learn how to download and update a device driver, see the Dell knowledge-base article How to Download and Install Dell Drivers.
To reset the Dell C2422HE Monitor to factory defaults, see the Reset to Factory Settings section of this article.
The Dell C2422HE monitor has two integrated diagnostics that are available:
- Self-Test Feature Check - The self-test feature check on the Dell C2422HE monitor allows you to check whether the monitor is functioning properly.
- Built-In Self-Test - The Dell C2422HE monitor has an integrated self-test that helps you identify if the screen abnormality is with the monitor or the video card (GPU) 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.
To learn how to run a diagnostic test, see the Running Diagnostics on Dell C2422HE 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 C2422HE 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.
Use the joystick control on the rear of the monitor to make OSD adjustments.
Figure 1: Dell C2422HE Joystick Control
- Press the joystick button to launch the OSD main menu.
- Move the joystick up/down/left/right to toggle between options.
- Press the joystick button again to confirm the settings and exit.
For more information about using the On-Screen Display (OSD) menu and different menu options. See the Operating Your Monitor section in the User's Guide of your Dell C2422HE monitor.
.Other monitor information like the model number, firmware version and Service Tag can be accessed from the monitor's OSD (On-Screen Display).
- Press the joystick (Figure 1) on the monitor to enter the On-Screen Display (OSD) Menu.
- Press up or down to highlight Others option in the menu and press on the joystick to select.
- Press up or down to highlight Model Number or Firmware Version option in the menu and press on the joystick to select.
- Press on the joystick to exit the OSD menu.
Dell C2422HE supports both DisplayPort 1.4 connectivity with your personal computer. If the video or graphics card (GPU) on your personal computer supports DisplayPort 1.2, it is required to change the monitor to DisplayPort 1.2 mode.
NOTE: The default factory setting on the Dell C2422HE is DisplayPort 1.4 (DP1.4).
- Press the joystick (Figure 1) on the monitor to enter the On-Screen Display (OSD) Menu.
- Press up or down to highlight Input Source in the menu and press on the joystick to select.
- Press up or down to highlight DP in the menu.
- Press and hold on the joystick for approximately 10 seconds until the DisplayPort configuration message appears.
Figure 1: Dell C2422HE Power Button and OSD Joystick
- Press the joystick to select Disable and change the display mode to DisplayPort version 1.2 2.
Dell C2422HE supports both HDMI 2.0 and HDMI 1.4 connectivity with your personal computer. If the video or graphics card (GPU) on your personal computer supports HDMI 1.4, it is required to change the monitor to HDMI 1.4 mode.
NOTE: The default factory setting on the Dell C2422HE is HDMI 2.0.
- Press the joystick (Figure 1) on the monitor to enter the On-Screen Display (OSD) Menu.
- Press up or down to highlight Input Source in the menu and press on the joystick to select.
- Press up or down to highlight HDMI in the menu.
- Press and hold on the joystick for approximately 10 seconds until the HDMI configuration message appears.
Figure 1: Dell C2422HE Power Button and OSD Joystick
- Press the joystick to select Disable and change the display mode to HDMI version 1.4.
USB Type-C port on your Dell C2422HE supports USB Power Delivery, Data, and DisplayPort video signal. The USB Type-C port can be used for video and data signal, and supply power (90 W) to a compatible laptop personal computer using a single USB Type-C cable that is provided with the monitor.
NOTE: Dell C2422HE can supply power over the USB Type-C cable only to a compatible laptop personal computer that supports Power Delivery (PD) over USB Type-C. Not all laptop PCs with USB Type-C support Power Delivery, for more information see the User Manual or contact your laptop manufacturer.
NOTE: USB Type-C power delivery-compliant port (PD version 2.0) delivers up to 90 W of power. If your laptop personal computer requires more than 90 W to operate and the battery is drained. It is recommended you use the standard AC adapter of the laptop personal computer to turn on and charge the laptop battery.
If you are using a Dell laptop personal computer that supports charging over USB Type-C. It is recommended to update the BIOS and Video or Graphics card (GPU) driver. To learn how to download and update a device driver, see the Dell knowledge-base article How to Download and Install Dell Drivers.
Dell C2422HE monitor orientation must always be in landscape mode. This includes any wall-mounted monitors and monitors on a stand. In a multiple monitor setup, the Dell C2422HE should not be rotated either to 180° (landscape) or 90° (portrait).
CAUTION: Dell C2422HE setup must comply with the recommended panel orientation and working angle only. Setting up the monitor in an orientation that is not recommended may damage the monitor and/or cause a safety hazard.
When setting up your Dell C2422HE monitor, ensure that the monitor front panel buttons is on the bottom right.
Using the Tilt, Swivel, and Vertical Extension
NOTE: This is applicable for a monitor with a stand. When any other stand is bought, please see the respective stand setup guide for set-up instructions.
With the stand attached to the monitor, you can tilt and swivel the monitor for the most comfortable viewing angle.
Figure 5: Using Tilt and Swivel on a Dell C2422HE monitor
Before you rotate the display, extend the display vertically until the top of the stand riser, and then tilt the display backwards until the maximum to avoid hitting the bottom edge of the display.
Figure 6: Rotating of Dell C2422HE
WARNING: The monitor should not be rotated 180° (landscape). The monitor should not be orientated at 90° (portrait).
Affected Products
Dell 27 Video Conferencing Monitor C2722DEArticle Properties
Article Number: 000183168
Article Type: How To
Last Modified: 06 Feb 2025
Version: 7
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