Dell U2724DE Monitor Usage and Troubleshooting Guide

Summary: This article provides information about how to set up and use the Dell U2724DE monitor. Learn how to troubleshoot common display or video issues with the Dell U2724DE monitor.

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Instructions

Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE

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Getting Started with your Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE Setup, Specifications, and Service Manual Dell Drivers & Downloads Warranty and Support Services Frequently Asked Questions
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The key features of the Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE are:

  • 68.47 cm (27.0 in.) viewable area (measured diagonally) 2560 x 1440 (16:9) resolution, plus full-screen support for lower resolutions.
  • A wide viewing angle to allow viewing from a sitting or standing position.
  • Color gamut of sRGB 100% and BT.709 100% with an average Delta E greater than two; also supports DCI-P3 greater than or equal to 98%.
  • Tilt, swivel, height, and rotate adjustment capabilities.
  • An Ultra-thin bezel minimizes the bezel gap in multi-monitor usage, enabling easier setup with an elegant viewing experience.
  • The stand is removable with Video Electronics Standards Association (VESA) 100 mm mounting holes on the rear of the monitor for flexible mounting solutions.
  • The Auto Brightness sensor detects the surrounding light and adjusts monitor brightness and color temperature accordingly; multiple Dell monitors equipped with Auto Brightness sensor could synchronize their brightness and color temperature level.
  • The U2724DE is equipped with:
    • One RJ45 Ethernet Connector
    • One USB Type-C upstream port (data only, USB 3.2 Gen2, 10 Gbps)
    • One Thunderbolt 4 upstream port (USB 3.2 Gen2, 40 Gbps)
    • One Thunderbolt 4 40 Gbps (USB 3.2 Gen2) Type-C downstream port
    • Three SuperSpeed USB 10 Gbps (USB 3.2 Gen2) Type-A downstream ports
    • One SuperSpeed USB 10 Gbps (USB 3.2 Gen2) Type-A downstream with BC1.2 charging port
    • One SuperSpeed USB 10 Gbps (USB 3.2 Gen2) Type-C downstream port
    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 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 technical specifications of the Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE. For more information, see the user manual of the Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE.

Table 1: Technical specifications of the Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE
Ports and connectors
  • 1 x DisplayPort version 1.4 (HDCP 1.4) (supports up to QHD 2560 x 1440 120 Hz)
  • 1 x HDMI port version 1.4 (HDCP 1.4) (supports up to QHD 2560 x 1440 120 Hz)
  • 1 x DisplayPort (Out) (HDCP 1.4) (Connecting for DP MST function)
  • 1 x SuperSpeed USB 10 Gbps (USB 3.2 Gen2) USB Type-C upstream port (Data only)
  • 1 x Thunderbolt 4 40 Gbps (USB 3.2 Gen2) USB Type-C upstream port
  • 1 x Thunderbolt 4 40 Gbps (USB 3.2 Gen2)** Type-A downstream port
  • 3 x SuperSpeed USB 10 Gbps (USB 3.2 Gen2)** Type-A downstream ports
  • 1 x SuperSpeed USB 10 Gbps (USB 3.2 Gen2)** Type-A downstream port (with BC1.2 Charging)
  • 1 x SuperSpeed USB 10 Gbps (USB 3.2 Gen2)** Type-C downstream port
  • 1x RJ45 (Ethernet Connector) (2.5 G)
  • 1 x audio line-out port *
Cables Included
  • DisplayPort (DP 1.4) 1.8 meter
  • USB Type-A to USB Type-C 1 meter
NOTE:
  • * Headphone usage is not supported for the audio line out connector.
  • ** To avoid signal interference, when a wireless USB device has been connected to a USB downstream port, it is not recommended to connect any other USB devices to the adjacent ports.

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 UltraSharp 27 Thunderbolt Hub Monitor - U2724DE.

To learn how to set up any other monitor stand or monitor arm, see the setup guide of the product.

CAUTION: Do not remove the monitor from the packaging box before attaching the stand.
NOTE: The stand assembly is not pre-installed when the monitor is shipped from the factory.

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 to 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 UltraSharp 27 Thunderbolt Hub Monitor - U2724DE to your computer:

WARNING: Read and follow: Safety Precautions When Working with Electronic and Electrical Equipment
NOTE:
  • Dell monitors are designed to work optimally with the Dell-supplied cables inside the box. Dell does not guarantee the video quality and performance if non-Dell cables are used.
  • Route the cables through the cable-management slot before connecting them.
  • Do not connect all cables to the computer simultaneously.
  1. Turn off the computer.
  2. Connect the power cable to the monitor.
  3. 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 UltraSharp 27 Thunderbolt Hub Monitor - U2724DE
  4. Connect the USB upstream cable between the monitor and computer (if available).
  5. Turn on the monitor.
  6. Turn on the computer.

For additional product-specific information, see the: User manual of the Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE

NOTE: The following instructions are applicable only for attaching the stand that was shipped with your monitor. If you are attaching a stand that you purchased from any other source, follow the set-up instructions that were included with the stand.

With the stand attached to the monitor, you can tilt and swivel the monitor for the most comfortable viewing angle.

When setting up your Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE, ensure that the screen is facing you. With the screen facing you, the joystick should be on the back of the monitor at the bottom right corner.

Using the tilt, swivel, and vertical extension

NOTE: This is applicable for a monitor with a stand. For other stands, see the respective stand setup guide.

The monitor stand allows you to tilt and swivel the monitor to set the most comfortable viewing angle.

Using Tilt and Swivel on Dell UltraSharp 27 Monitor - U2724DE
Figure 1: Using Tilt and Swivel on Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE.

NOTE: The stand is not installed at the factory when shipped.

The stand extends vertically up to 150 mm. Figure 2 below illustrates how to extend the stand vertically.

Vertical extension of Dell UltraSharp 27 Monitor - U2724DE
Figure 2: Vertical extension of Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE

Before you rotate the monitor, your monitor should be fully vertically extended and fully tilted up to avoid hitting the bottom edge of the monitor.

Rotating the Dell UltraSharp 27 Monitor - U2724DE
Figure 3: Rotating the Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE

Rotating the Dell UltraSharp 27 Monitor - U2724DE clockwise
Figure 4: Rotating the Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE clockwise

Rotating the Dell UltraSharp 27 Monitor - U2724DE counterclockwise
Figure 5: Rotating the Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE counterclockwise

NOTE:
  • To use the Display Rotation function (Landscape compared with Portrait view) with your Dell computer, you require an updated graphics driver that is not included with this monitor. To download the graphics driver, go to https://www.dell.com/support and see the Download section for Video Drivers for latest driver updates.
  • When in the Portrait View Mode, you may experience performance degradation in graphic-intensive applications (3D Gaming and so on).

When you press the joystick button, the OSD status bar appears to let you know the current settings of some OSD functions. To access the on-screen display (OSD) menu, press the Menu button (label 1) (Figure 6) in the OSD status bar.

To learn more about navigating through the on-screen display (OSD) menu, see the: User manual of the Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE

NOTE: After you change the settings, press the joystick to save the changes before you go to another function or exit.

Dell U2724DEMenu Launcher
Figure 6: Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE Menu Launcher

Table 2: Menu launcher functions on the Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE
Label Function Description
1 Menu Use this to launch the On-Screen Display (OSD) main menu.
2 Display Info Use this to display the monitor's current status.
Input Source Use this to choose an input source from the list of video signals that may be connected to your monitor.
Preset Modes Use this to choose a preferred color mode from the list of preset modes.
Brightness/Contrast Use this to access the adjustment sliders of brightness and contrast.
Auto Brightness Use this to enable or disable the auto-brightness function.
3 Exit Use this to exit the Menu Launcher.

Resetting a monitor to factory defaults can help resolve many video or display-related issues. Reset your Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE to factory default settings by following these steps:

  1. Press the joystick button.
  2. Select Menu.
  3. Select Others.
  4. Select Factory Reset.
  5. When prompted to reset to default settings, select Yes.

Dell U2724DE reset default settings prompt
Figure 7: Dell U2724DE reset default settings prompt

  1. Optionally, select Yes to enable USB Charging. Otherwise, select No.

Dell U2724DE USB charging
Figure 8: Dell U2724DE USB charging

  1. Optionally, select Yes to enable Auto Brightness. Otherwise, select No.

Dell U2724DE Auto Brightness function
Figure 9: Dell U2724DE Auto Brightness function

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 shows 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 UltraSharp 27 Thunderbolt Hub Monitor - U2724DE 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:

  1. Turn off the computer and the monitor.
  2. 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.
  3. 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.
  4. This box also appears during normal system operation, if the video cable becomes disconnected or damaged.
  5. Turn off the monitor and reconnect the video cable.
  6. 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 UltraSharp 27 Thunderbolt Hub Monitor - U2724DE 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).

  1. Press the joystick button.
  2. Select Menu.
  3. Select Others.
  4. Select Self-Diagnostic.
  5. When initiated, a gray screen appears. Carefully inspect the screen for abnormalities.
  6. Press the joystick. The color of the screen changes to red.
  7. Inspect the display for any abnormalities.
  8. Repeat steps 6 and 7 to inspect the display in green, blue, black, white, and text screens.

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 UltraSharp 27 Thunderbolt Hub Monitor - U2724DE.

Alternatively, learn: How to Troubleshoot Display or Video Issues on a Dell Monitor or check our: Dell monitor self-help guide

Table 3: Troubleshooting common display issues on Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE.
Common Problem What User Experiences Possible Solution
No Video - Power LED Off No picture
  • Connect the power cable securely to the monitor.
  • Verify that the power outlet is functioning properly by using any other electrical equipment.
  • Press the power button.
  • Test with a known-good cable and a known-good computer if possible.
  • Select the correct input source in the Input Source menu.
No Video - Power LED On No picture or no brightness
Poor Focus The picture is fuzzy, blurry, or ghosting.
Shaky or Jittery Video Wavy picture or fine movement
Missing Pixels LCD screen has spots.
  • Turn off the monitor and then turn on the monitor after a few minutes.
  • A pixel that is permanently off is a natural defect that can occur in LCD technology.
  • Run the built-in diagnostic (BID) test.
Stuck On/Off Pixels LCD screen has a bright spot.
Brightness Problems Picture too dim or too bright.
Geometric Distortion The screen not centered correctly.
Horizontal or Vertical Lines The screen has one or more lines.
Synchronization Problems The screen appears scrambled or torn.
Safety-Related Issues Visible signs of smoke or sparks
Intermittent Problems The monitor malfunctions on and off.
Missing Color The picture does not have color.
  • Run the monitor self-test feature.
  • Connect the video cable securely between the monitor and the computer.
  • Check for bent or broken pins in the video cable connector.
Wrong Color Picture color is not good.
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.
  • Use the Power Management feature to turn off the monitor when it is not in use.
  • Alternatively, use a dynamically changing screensaver.
The screen image is too small. The image is centered on the screen, but does not fill the entire viewing area.
Unable to adjust the monitor with the buttons on the front panel OSD does not appear on the screen
  • Turn off the monitor, unplug the power cable, plug it back, and then turn on the monitor.
  • Check whether the OSD menu is locked. If yes, move and hold the joystick up, down, left, right for 4 seconds to unlock.
No Input Signal when user controls are pressed. No picture, the power LED light is white.
  • Check the signal source. Ensure that the computer is not in power-saving mode by moving the mouse or pressing any key on the keyboard.
  • Connect the video cable securely between the monitor and the computer.
  • Restart the computer.
The picture does not fill the entire screen. The picture cannot fill the height or width of the screen.
No video at HDMI or DisplayPort port When connected to a certain dongle or docking device at the port, there is no video when unplugging or plugging the Thunderbolt cable from the laptop.
  • Unplug the HDMI or DisplayPort cable from a dongle or docking device, then plug the docking Thunderbolt cable to the laptop. Plug the HDMI or DisplayPort cable 7 seconds later.
No video at USB Type-C port When connected to certain dongle or docking devices at the port, there is no video when unplugging/plugging the Thunderbolt cable from the laptop
  • Unplug the USB Type-C cable from the dongle or docking device, then plug the docking Thunderbolt cable to the laptop. Plug the USB Type-C cable seven seconds later.
No network connection Network dropped or intermittent
  • Check to ensure that USB-C Prioritization is set to High Data Speed.
  • Do not turn off the display while the network connects.
Monitor screen becomes dim When Auto Brightness is enabled, the brightness level of the monitor becomes abnormally low, resulting in a dimmed screen.
  • Check whether an object is obstructing the sensor area.
  • Ensure that a webcam is not mounted over the sensor area.
  • Wipe clean any dust that may be covering the sensor area.
  • Ensure that the display is not pivoted and placed to another monitor side-by-side.

The following table contains information about troubleshooting USB issues on your Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE.

Table 4: Troubleshooting USB issues on Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE.
Troubleshooting USB Issues
Specific Symptoms What User Experiences Possible Solution
USB interface is not working. USB devices are not working.
  • Check that your monitor is turned On.
  • Reconnect the upstream cable to your computer.
  • Reconnect the USB devices (downstream connector).
  • Switch Off and then turn On the monitor again.
  • Reboot the computer.
  • Some USB devices such as an external hard drive require a higher electric current, connect the device directly to the computer.
SuperSpeed USB 10 Gbps (USB 3.2 Gen2) interface is slow. SuperSpeed USB 10 Gbps (USB 3.2 Gen2) devices working slowly or not working at all
  • Check that your computer is SuperSpeed USB 10 Gbps (USB 3.2 Gen2)-capable.
  • Some computers have USB 3.2, USB 2.0, and USB 1.1 ports.
  • Ensure that the correct USB port is used.
  • Reconnect the upstream cable to your computer.
  • Reconnect the USB devices (downstream connector).
  • Reboot the computer.
Wireless USB devices stop working when a USB 3.2 device is plugged in. Wireless USB devices responding slowly or only working as the distance between itself and its receiver decreases.
  • Increase the distance between the USB 3.2 devices and the wireless USB receiver.
  • Position your wireless USB receiver as close as possible to the wireless USB devices.
  • Use a USB-extender cable to position the wireless USB receiver as far away as possible from the USB 3.2 port.

Additional Information

Frequently Asked Questions

For more information, click to expand a section below.

NOTE: If you do not see the recommended resolution as an option. Update the video card (GPU) driver of your Dell computer from https://www.dell.com/support/drivers or the video card (GPU) manufacturer's website. Learn: How to Download and Install Dell Drivers

Using Windows Display Settings

In Windows 8.1:

  1. For Windows 8.1 only, select the Desktop tile to switch to the classic desktop view.
  2. Right-click the desktop and click Screen Resolution.
  3. If you have more than one monitor connected, ensure that you select U2724DE.
  4. Click the dropdown list of the Screen Resolution and select 2560 x 1440.
  5. Click OK.

In Windows 11 and Windows 10:

  1. Right-click the desktop and click Display Settings.
  2. Click the dropdown list of the Screen Resolution and select 2560 x 1440.
  3. If you have more than one monitor connected, ensure that you select U2724DE.
  4. Click Keep changes.

Using Nvidia Control Panel

To change the resolution using the Nvidia Control Panel:

  1. Right-click the desktop and click Nvidia Control Panel.
  2. Click the + symbol next to Display on the left pane.
  3. Select Change Resolution under Display.
  4. In the dropdown menu on the right pane, select the resolution 1234 x 1234.
  5. Click Apply.

Using AMD Catalyst Control Center

To change the resolution using the AMD Catalyst Control Center:

  1. Right-click the desktop and click AMD Catalyst Control Center.
  2. Click the + symbol next to Display on the left pane.
  3. Select Change Resolution under Display.
  4. In the dropdown menu on the right pane, select the resolution 1234 x 1234.
  5. Click Apply.

The Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE has two integrated diagnostics that are available:

  • Self-Test Feature Check - The self-test feature check on the Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE allows you to check whether the monitor is functioning properly.

  • Built-In Self-Test - The Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE has an onboard 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 onboard diagnostics.

Learn how to run a diagnostic test on the Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE.

The troubleshooting section of this article provides information about troubleshooting common issues with your Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE.

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  
  • Pixel issues

Learn how to access the on-screen display (OSD) menu on the Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE. For additional product-specific information, see the user manual of the Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE.

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 UltraSharp 27 Thunderbolt Hub Monitor - U2724DE. For additional product-specific information, see the user manual of the Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE.

For information about the supported orientation to set up the Dell UltraSharp 27 Thunderbolt Hub Monitor - U2724DE, see the monitor orientation section of this article.

Affected Products

Dell U2724DE
Article Properties
Article Number: 000218456
Article Type: How To
Last Modified: 13 Oct 2023
Version:  1
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