Dell P3424WEB Monitor Usage and Troubleshooting Guide
Summary: This article provides information about how to set up and use the Dell P3424WEB Curved Video Conferencing Monitor. Learn how to troubleshoot common display or video issues with the Dell P3424WEB monitor. ...
Instructions
The Dell P3424WEB monitor has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD), and LED backlight. The monitor features include:
- 86.71 cm (34.14 in.) active area display (measured diagonally) 3440 x 1440 (21:9) resolution, plus full-screen support for lower resolutions.
- Wide viewing angles with 99% sRGB color.
- Tilt, swivel, and vertical extension adjustment capabilities.
- 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.
- 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.
- Plug-and-play capability if supported by your computer.
- On-Screen Display (OSD) adjustments for ease of set-up and screen optimization
- Power and OSD buttons lock.
- Security lock slot
- Stand lock.
- Supports Picture by Picture (PBP)/Picture in Picture(PIP) Select mode
- Allows users to switch USB KVM functions in PBP/PIP mode.
- The monitor is designed with the Dell Power Button Sync (DPBS) feature to control the personal computer system power state from the monitor power button.*
- Premium Panel Exchange for peace of mind
- Optimize eye comfort with a flicker-free screen and ComfortView Plus feature.
- This monitor uses a low blue light panel. When the monitor is reset to factory settings or default setting (Preset mode: Standard), it works in compliance with TUV Rheinland (hardware solutions provider).
- Decreases the level of hazardous blue light emitted from the screen to make viewing more comfortable for your eyes
- The monitor adopts Flicker-Free technology, which clears the eye-visible flicker, brings a comfortable viewing experience, and prevents users from suffering eye strain and fatigue.
- Certified for Microsoft Teams and Zoom.
- Certified for Windows Hello (Face Authentication) and supports Microsoft Cortana.
- Extra customization using Dell Peripheral Manager/Dell Display Manager (DDM) for the Windows operating system and Dell Display and Peripheral Manager (DDPM) for the Mac operating system
* The Dell system that supports DPBS is listed on the Dell website. DPBS function can be enabled in the OSD menu under Display.
This section provides some technical specifications of the Dell P3424WEB monitor. For more information, see the user manual of the Dell P3424WEB monitor.
| Ports and connectors |
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|---|---|
| Any other ports |
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For the best viewing experience, assemble the monitor stand, connect and organize the cables, and set up the monitor ergonomically.
Attaching the stand
The standard monitor stand is detached when it is shipped from the factory. To learn how to attach the standard monitor stand, see the user manual of the Dell P3424WEB monitor.
To learn how to set up any other monitor stand or monitor arm, see the setup guide of the product.
Ergonomics
Where you put your monitor is almost as important as what model you buy.
- The monitor must be directly in front of you, at an arm’s length away (between 20-40 inches from your eyes).
- The top edge of the screen must be set at eye level when you are sitting comfortably. Adjust your chair height or the height of the monitor to achieve this.
Connecting your monitor to the computer
To connect your Dell P3424WEB monitor to your computer:
- Turn off the computer.
- Connect the power cable to the monitor.
- Connect the video cable (USB-C, DisplayPort, or HDMI) between the computer and the monitor.
NOTE: Setting up the monitor with a Dell docking station? Learn How to Connect and Set Up a Docking Station With a Dell Laptop.NOTE: Setting up more than one monitor? Learn How to Set up Multiple Monitors or see the user manual of the Dell P3424WEB monitor.
- Connect the USB upstream cable between the monitor and the computer (if available).
- Turn on the monitor.
- Turn on the computer.
For additional product-specific information, see the user manual of the Dell P3424WEB monitor.
Using the tilt, swivel, and vertical extension
With the stand attached to the monitor, you can tilt the monitor for the most comfortable viewing angle.

Figure 1: Using the tilt, swivel, and vertical extension on the Dell P3424WEB monitor.
To access the on-screen display (OSD) menu, press Joystick (Figure 2) at the back of the monitor.
To learn more about navigating through the on-screen display (OSD) menu, see the user manual of the Dell P3424WEB monitor.
Using the joystick control

Figure 2:Joystick Control
To modify the OSD adjustments using the joystick control on the rear end of the monitor, do the following:
- Press the joystick to open the OSD Menu Launcher.
- Move the joystick up/down/center/left/right to switch between the OSD menu options.
Using the rear-panel controls.

Figure 3: Menu Launcher
- Toggle the Joystick Up to open the Main Menu.
- Toggle the Joystick Left or Right to select the wanted Shortcut Keys.
- Toggle the Joystick Down to Exit.
Resetting a monitor to factory defaults can help resolve many video or display-related issues. To reset your Dell P3424WEB monitor to factory default settings:
- Press the joystick on the monitor to enter the On-Screen Display (OSD) Menu.
- Press up or down on the joystick to highlight the Other option in the menu and press on the joystick to select.
- Press up or down to highlight the Factory Reset option in the menu and press on the joystick to select it.
- Press the joystick to confirm the reset action.

Figure 4: Joystick Control
A diagnostic test helps determine if the Dell monitor is normal when faced with a blank screen, blurry image, flickering or other abnormalities.
Verify that the monitor is working correctly by running a diagnostic test if you experience the following symptoms.
- Your computer does not turn on or show any sign of power.
- Your computer does not show any indication of activity, the screen is blank and does not display the Dell logo during start-up.
- Your computer gets stuck at the Dell logo screen or does not respond to any keys during start-up.
- You cannot see any display on the screen.
- You hear the windows chime, but the monitor screen is blank.
Self-Test Feature Check
Your Dell P3424WEB monitor provides a self-test feature check that allows you to check if the monitor is functioning properly. When the monitor is connected to the computer but the screen stays dark, run the monitor self-test by following these steps:
- Turn off the computer and the monitor.
- Unplug the video cable from the back of the computer. To ensure proper self-test operation, disconnect the video cable (VGA, DVI, HDMI, DisplayPort, or USB-C cable) from the back of the computer.
- Turn on the monitor. A floating dialog box should appear on-screen (against a black background), if the monitor cannot sense a video signal and is working correctly. While in self-test mode, the power LED remains white. Also, depending upon the selected input, the dialog box scrolls through the screen.
- This box also appears during normal system operation, if the video cable becomes disconnected or damaged.
- Turn off the monitor and reconnect the video cable.
- Turn on the computer and the monitor.
If the screen remains blank, check the video card (GPU) and computer, because the monitor is functioning properly.
Built-In Self-Test or Built-In Diagnostics
Your Dell P3424WEB monitor has an integrated diagnostic tool. Hardware diagnostic helps determine if the screen abnormality issue is with the monitor or the video card on your computer.
If you observe any screen anomalies, you should isolate the monitor by performing the built-in diagnostics (BID).
If you do not detect any screen abnormalities in the diagnostics test, the monitor is functioning properly. Check the video card (GPU) and the computer.
If you notice any abnormalities in the diagnostics test, contact Dell Technical Support for repair options.
During the manufacturing process, it is not uncommon for one or more pixels to get stuck in an unchanging state. Such pixel issues are hard to see and do not affect the display quality or usability. Learn more about Dell Display Pixel Guidelines.
The following table contains information about troubleshooting common display-related issues on your Dell P3424WEB monitor.
Alternatively, learn How to Troubleshoot Display or Video Issues on a Dell Monitor or check our Dell monitor self-help guide.
| Common Problem | What User Experiences | Possible Solution |
|---|---|---|
| No Video - Power LED Off | No picture |
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| No Video - Power LED On | No picture or no brightness |
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| Poor Focus | The picture is fuzzy, blurry, or ghosting. |
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| Shaky or Jittery Video | Wavy picture or fine movement |
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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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| Geometric Distortion | The screen not centered correctly. |
NOTE: When using DisplayPort input, the positioning adjustments are not available.
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| Horizontal or Vertical Lines | The screen has one or more lines. |
NOTE: When using DisplayPort input, the positioning adjustments are not available.
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| Synchronization Problems | The screen appears scrambled or torn. |
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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 picture does not have color. |
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| Wrong Color | The 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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| The screen image is too small. | The image is centered on the screen, but does not fill the entire viewing area. |
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| Image Ghosting | Fast-moving images leave a trail of shadow images. | On certain videos and applications with fast-moving images, imaging ghosting, which appears as a trailing shadow, may occur. Change the Response Time to Fast using the On-Screen Display (OSD) menu. |
| No Input Signal when user controls are pressed. | No picture, the power LED light is white. |
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| The picture does not fill the entire screen. | The picture cannot fill the height or width of the screen. |
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| No Video, No Display | No video when connecting docking, dongle, or Blu-ray DVD players | Because legacy platforms cannot identify or output 3440 x 1440, adjust the EDID to a lower resolution to address this compatibility issue.
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| Unable to switch back to native resolution (3440 x 1440) after Picture by Picture is turned off. | Dell P3424WEB supports Picture by Picture (PBP) mode. Picture by Picture (PBP) mode is two side-by-side images with each image that is displayed at 2560 x 1440 resolution. When the monitor is connected to a computer using HDMI and PBP mode is turned off, the monitor may display images at the lower resolution (2560 x 1440) rather than automatically switching to the native resolution (3440 x 1440). |
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Display mode changes from Second screen onlyto Extended modeafter opening and closing the laptop LCD. |
The display mode on your computer reverts to 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. |
Switch to the display mode that you want after you close and reopen the laptop screen manually:
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| The monitor blinks twice when connected to computer with an Nvidia NVS 310 video or graphics card. | When the monitor is turned-off and back on, the monitor may blink twice. This issue may occur if the computer is using a Nvidia Graphic NVS 310 card and the graphics card resolution setting is 2560 x 1600. |
To resolve this issue, manually set the resolution to 2560 x 1440 using the Nvidia Control Panel.
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| The monitor has a sound icon when Dell P3424WEB is connected to a laptop using HDMI. | Dell P3424WEB does not support audio or sound using HDMI. Speakers or headphones must be connected using the audio connector on the computer. |
To resolve the audio icon displaying, update the video or graphics (GPU) driver to the latest version. Learn How to Download and Install Dell Drivers. |
| The monitor will not display Blu-Ray video after the monitor is powered-off and powered on. | If the monitor is powered-off and powered-on when displaying the Blu-Ray video, the Blu-ray player may lose the data signal from the system to the monitor. |
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| Cannot enable YCbCr color mode on the monitor. | When the monitor is connect to the computer using HDMI, the video or graphics card (GPU) controls the YCbCr setting. | Disable the YCbCr setting from the video or graphics utility such as Intel HD Graphics Control Panel. |
| Monitor will not support the YCbCr color format when a USB-C to HDMI dongle is connected from the monitor to the computer. | Some combinations of USB-C to HDMI dongle and video or graphics card (GPU) are not compatible to support the YCbCr color format. |
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| When changing the monitor’s resolution from Windows Display Settings, the image quality may not be good. | Windows Display Settings and the resolution settings on the laptop's video or graphics utility may not be compatible. | Change the resolution using the video or graphics card (GPU) utility such as Intel HD Graphics Control Panel. |
| No video when the monitor is connected to a Dell docking station. | The monitor may not receive video signals from the computer when connected to a Dell docking station. | To learn more about how to set up and configure the Dell P3424WEB monitor with a Dell docking station, see the user manual of the Dell P3424WEB monitor. |
| Light leak from the monitor | The monitor appears to have light leak from the edges in a dark room. | This is the normal behavior of the monitor. Dell consumer monitors are tested under 150-lux ambient lighting (similar to typical office lighting). Dell UltraSharp and Gaming monitors are tested with tighter criteria of 70-lux ambient lighting (dimly lit room, but not dark). Learn more about Troubleshooting Light Leakage or Light Bleeding on a Dell Monitor or Laptop LCD Screen. |
| Color variation on the corners of the monitor | The monitor appears to have color variation on the corners of the screen. | The optimal viewing position for the monitor is from the center of the screen. Dell P3424WEB monitor uses a curved IPS panel, the corners of the screen may appear slightly yellowish or pinkish, especially when viewing in a dark room. This is normal IPS panel behavior and typically does not affect the overall viewing performance.
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| No video when a Blu-Ray, DVD player or PS4 is connected to the monitor using HDMI. | The monitor does not display any video when an external Blu-ray, DVD player or PS4 is connected. | Dell P3424WEB monitor is factory default set at HDMI EDID with three Block (Detailed Timing Descriptor) to support 3440 x 1440 @ 60 Hz. To display a resolution of 3840 x 1080 @ 60 Hz or lower, you must switch the monitor HDMI EDID from three Block to two Block.
To display 3440 x 1440 resolution over HDMI again, you must switch the monitor back to HDMI EDID 3 Block. Follow Steps 1 and 2, and select Disable. |
| Horizontal stripes when watching online videos using Microsoft Movies and TV app, Microsoft Internet Explorer or Microsoft Edge | Unwanted horizontal stripes appear on the video playback window when viewing online videos on YouTube using Microsoft Internet Explorer or Microsoft Edge browser. They are also seen while watching online videos using the Movies and TV app. |
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The following table contains information about troubleshooting USB issues on your Dell P3424WEB monitor.
| Troubleshooting USB Issues | ||
|---|---|---|
| Specific Symptoms | What User Experiences | Possible Solution |
| USB interface is not working. | USB devices are not working. |
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| The super speed USB 3.2 Gen1 interface is slow. | Super speed USB 3.2 Gen1 peripherals working slowly or not working at all |
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| Wireless USB devices stop working when a USB 3.0 device is plugged in. | Wireless USB devices responding slowly or only working as the distance between itself and its receiver decreases. |
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| No charging when using USB Type-C connection to computer, laptop, and so on | No charging. |
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| Intermittent charging when using USB Type-C connection to computer, laptop, and so on | Intermittent charging |
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Learn how to view or download the Manuals and Documentation for your Dell Product.
Frequently Asked Questions
For more information, click to expand a section below.
Using Windows Display Settings
In Windows 11, 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 3440 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 3440 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 3440 x 1440.
- Click Apply.
Go to the reset to the Dell P3424WEB monitor to the factory settings section of this article or see the user manual of the Dell P3424WEB monitor.
The Dell P3424WEB monitor has two built-in diagnostics that are available:
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Self-Test Feature Check - The self-test feature check on the Dell P3424WEB monitor allows you to check whether the monitor is functioning properly.
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Built-In Self-Test - The Dell P3424WEB monitor has a built-in 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 such as distortion, clarity, horizontal or vertical lines, color fade. It is always a good practice to isolate the monitor by running the built-in diagnostics.
Learn how to run a diagnostic test on the Dell P3424WEB monitor.
The troubleshooting section of this article provides information about troubleshooting common issues with your Dell P3424WEB monitor.
This 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.
Learn how to access the on-screen display (OSD) menu on the Dell P3424WEB monitor. For additional product-specific information, see the user manual of the Dell P3424WEB monitor.
Information about the monitor such as the model number, firmware version, and Service Tag can be accessed using the on-screen display (OSD) menu of the monitor.
Learn how to access the on-screen display (OSD) menu on the Dell P3424WEB monitor. For additional product-specific information, see the user manual of the Dell P3424WEB monitor.
- Press the joystick 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.

Figure 5: Dell P3424WEB Joystick Control
- Press the joystick 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 s until the HDMI configuration message appears.

Figure 6: Dell P3424WEB Joystick Control
The USB-C port on your Dell P3424WEB supports USB Power Delivery, Data, and DisplayPort video signal. The USB-C port can be used for video and data signals, and supply power (90 W) to a compatible laptop using a single USB-C cable that is provided with the monitor.
If you are using a Dell laptop that supports charging using USB-C, Dell Technologies recommends installing the latest BIOS and video card (GPU) driver. Learn How to Download and Install Dell Drivers.
For information about the supported orientation to set up the Dell P3424WEB monitor, see the monitor orientation section of this article.