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Dell UltraSharp 27 4K USB-C Hub Monitor - U2723QE Monitor Usage and Troubleshooting Guide

Summary: This article provides information about how to set up and use the Dell U2723QE monitor. Learn how to troubleshoot common display or video issues with the Dell U2723QE monitor.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Instructions

U2723QE monitor

Quick Links

Getting Started with your Dell U2723QE Monitor Dell U2723QE Monitor 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 U2723QE monitor are:

  • 68.47 cm (27.0 in.) active area display (Measured diagonally) 3840 x 2160 (16:9) resolution, plus full-screen support for lower resolutions.
  • Wide viewing angles with 100% sRGB, Rec.709, and 98% DCI-P3 color with an average Delta E <2.
  • Tilt, swivel, pivot, and vertical extension adjustment capabilities.
  • Removable pedestal stand and Video Electronics Standards Association (VESA) 100 mm mounting holes for flexible mounting solutions.
  • Ultra-thin bezel minimizes the bezel gap during multi-monitor usage, enabling easier setup with an elegant viewing experience.
  • Extensive digital connectivity with DP helps future-proof your monitor.
  • Single USB-C to supply power to compatible laptop while receiving 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.
  • ≤ 0.3 W in Off Mode.
  • Supports Picture by Picture (PBP) and Picture in Picture (PIP) Select mode.
  • Allow user to switch USB KVM function in PBP mode.
  • The Monitor is designed with Dell Power Button Sync (DPBS) feature to control personal computer power state from monitor power button. 1
  • The Monitor allows multiple monitors that are daisy chained using DisplayPort to synchronize a predefined group of OSD settings in the background by MultiMonitor Sync (MMS).
  • Premium Panel Exchange for peace of mind.
  • Optimize eye comfort with a flicker-free screen and low blue light feature to minimize hazard blue light emission.
  • The Monitor use Low Blue Light panel and compliance with TUV Rheinland (Hardware Solution) at factory reset/default setting model (Preset mode: Standard).
  • Decreases the level of hazard blue light that is 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 comfort viewing experience and preventing users suffer from eye strain and fatigue.

1 Personal Computer that supports DPBS is the Dell OptiPlex 7090/3090 Ultra platform.

WARNING: The possible long-term effects of blue light emission from the monitor may cause damage to the eyes, including eye fatigue or digital eye strain, and so on. ComfortView Plus feature is designed to reduce the amount of blue light that is emitted from the monitor to optimize eye comfort.

This section provides some technical specifications of the Dell U2723QE monitor. For more information, see the user manual of the Dell U2723QE monitor.

Table 1: Technical specifications of the Dell U2723QE monitor.
Ports and connectors
  • 1 x DP 1.4 with DSC support (HDCP 2.2)
  • 1 x DP out
  • 1 x HDMI 2.0 (HDCP 2.2)
  • 1 x USB-C (DP1.4 (HDCP 2.2) with DSC support, PD: 90 W, 2/4 Lanes switching) - upstream
  • 1 x USB-C (USB 3.2 Gen2, 10 Gbps KVM) upstream
  • 1 x Analog 2.0 audio line out (3.5 mm jack)
  • 4 x USB-A (USB 3.2 Gen2, 10 Gbps)
  • 1 x RJ45
Quick access:
  • 1 x USB-A (USB 3.2 Gen2 10 Gbps) with BC 1.2
  • 1 x USB-C (USB 3.2 Gen2 10 Gbps, 15W) downstream

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 the monitor is shipped from the factory. To learn how to attach the standard monitor stand, see the user manual of the Dell U2723QE monitor.

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 riser and stand base are detached 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 should 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 should 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 U2723QE monitor to your computer:

WARNING: Read and follow Safety Precautions When Working with Electronic and Electrical Equipment.
NOTE: U2723QE default setting is DisplayPort 1.4. A DisplayPort 1.1 Graphic card may not display normally. Reference product-specific problems - No image when using DP connection to the PC to change default setting in Common Troubleshooting Steps for more information.
  1. Turn off the computer.
  2. Connect the power cable to the monitor.
  3. Connect the HDMI, DisplayPort, or USB cable, and the USB-C cable from your monitor to the computer.
    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 U2723QE monitor.
  4. Turn on the monitor.
  5. Turn on the computer.

Connecting the HDMI cable
Figure 1: Connecting the HDMI cable

Connecting the DP cable
Figure 2: Connecting the DP cable

For additional product-specific information, see the user manual of the Dell U2723QE monitor.

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

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.

Using Tilt and Swivel on the Dell U2723QE monitor.
Figure 3: Using Tilt and Swivel on the Dell U2723QE monitor.

NOTE: The stand is detached when the monitor is shipped from the factory.

Rotating the Display

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.

Rotating the Dell U2723QE monitor.
Figure 4: Rotating the Dell U2723QE monitor.

NOTE:
  • To toggle the display setting on your Dell computer between landscape and portrait when rotating the display, download and install the latest graphics driver. To download, go to https://www.dell.com/support/drivers and search for the appropriate driver.
  • When the display is in portrait mode, you may experience performance degradation when using graphic-intensive applications such as 3D gaming.

To modify the OSD adjustments using the Joystick control on the rear end of the monitor, do the following:

  1. Press the joystick button to launch the OSD Menu Launcher.
  2. Move the joystick up, down, left, or right to toggle between the OSD menu options.

To learn more about navigating through the on-screen display (OSD) menu, see the user manual of the Dell U2723QE monitor.

NOTE: Any changes that you make are automatically saved. Whenever you move to another menu item, exit the OSD menu, or wait for the OSD menu to automatically close.

Dell U2723QE Power button and OSD Joystick
Figure 5: Dell U2723QE Power button and OSD Joystick

Table 2: Buttons on the Dell U2723QE monitor.
Button Function Description
Button 1 Power On/Off button (with LED indicator on the front of the monitor). A solid white light indicates that the monitor is On and fully functional. Blinking white light indicates the power save mode.
Joystick Control Controls to make adjustments to the On-Screen Display.
  • Press the joystick to launch the Menu Launcher.
  • Move the joystick up, down, left, or right to toggle between options.
  • Press the joystick again to confirm the selection.

Resetting a monitor to factory defaults can help resolve many video or display-related issues. To reset your Dell U2723QE monitor to factory default settings:

  1. Press the joystick on the monitor to enter the On-Screen Display (OSD) Menu.
  2. Press up or down on the joystick to highlight the Others option in the menu and then press on the joystick to select.
  3. Press up or down to highlight the Factory Reset option in the menu and then press on the joystick to select.
  4. Press the joystick to confirm the reset action.

Factory resetting the Dell U2723QE.
Figure 6: Factory resetting the Dell U2723QE.

If the Dell monitor has a blank screen, blurry image, flickering, or other screen abnormalities, running a diagnostic test helps determine if the Dell monitor is functioning normally.

If you are experiencing any of the following symptoms, verify that the monitor is working correctly by running a diagnostic test.

  • 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 is 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 can hear the Windows chime but no display is seen.

Self-Test Feature Check

Your Dell U2723QE monitor provides a self-test feature check that allows you to check if 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 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 will continuously scroll through the screen.
NOTE: This box also appears during normal system operation, if the video cable becomes disconnected or damaged.
  1. Turn off the monitor and reconnect the video cable.
  2. Turn on the computer and the monitor.

If the monitor screen remains blank after you use the above procedure, check your video card (GPU) and computer, because your monitor is functioning properly.

Built-In Self-Test or Built-In Diagnostics

Your Dell U2723QE 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.

If you notice any screen abnormalities, it is a good practice to isolate the monitor by running the built-in diagnostics (BID).

  1. Ensure that the screen is clean (no dust particles on the surface of the screen).
  2. Select OSD items of Self-Diagnostics in Others feature
  3. Press the Joystick button to start the diagnostics. A gray screen is displayed.
  4. Observe if the screen has any defects or abnormalities.
  5. Toggle the Joystick once again until a red screen is displayed.
  6. Observe if the screen has any defects or abnormalities.
  7. Repeat steps 5 and 6 until the screen displays green, blue, black, and white colors. Note any abnormalities or defects.

The test is complete when a text screen is displayed. To exit, toggle the Joystick control again.

If you do not detect any screen abnormalities upon using the built-in diagnostic tool, the monitor is functioning properly. Check the video card and computer.

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 LCD manufacturing process, it is not uncommon for one or more pixels to become fixed in an unchanging state. Such pixel issues are hard to see and do not affect the display quality or usability. Learn more about Dell LCD Monitor Pixel Guidelines.

The following table contains information about troubleshooting common display-related issues on your Dell U2723QE monitor.

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 U2723QE monitor.
Common Problem What User Experiences Possible Solution
No Video - Power LED Off No picture.
  • Ensure that the power cable connecting to the monitor is properly connected and secure.
  • Verify that the power outlet is functioning properly by using any other electrical equipment.
  • Ensure that the power button is pressed fully.
  • Test with a known-good cable and known-good computer if possible.
  • Ensure that the correct input source is selected in the Input Source menu.
No Video - Power LED On No picture or no brightness.
Missing Pixels LCD screen has spots.
Stuck On/Off Pixels LCD screen has bright spot.
Brightness Problems Picture too dim or too bright.
Safety-Related Issues Visible signs of smoke or sparks.
Intermittent Problems Monitor malfunctions on and off.
Missing Color Picture does not have color.
  • Run the monitor self-test feature check.
  • Ensure that the video cable connecting the monitor to the computer is connected properly and is secure.
  • 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 Faint shadow from the static image appears on the screen.
  • Set the screen to turn off after a few minutes of screen idle time. These can be adjusted in Windows Power Options or Mac Energy Saver setting.
  • Alternatively, use a dynamically changing screensaver.
Screen image is too small. Image is centered on screen, but does not fill entire viewing area.
Cannot adjust the monitor with the buttons on the front panel OSD does not appear on the screen

Turn off the monitor, unplug the monitor power cable, plug it back, and then turn on the monitor.
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.
  • Ensure that the video cable is connected properly with 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 image when using DP connection to the PC Black screen
  • Verify which DP standard (DP 1.1a or DP 1.4) is your Graphics Card certified for. Download and install the latest graphics card driver.
  • Some DP 1.1a graphics card cannot support DP 1.4 monitors. Go to OSD menu, under Input Source selection, press and hold DP select Joystick key for 8 seconds to change the monitor setting from DP 1.4 to DP 1.1a.
No image when using USB-C connection to computer, laptop, and so on Black screen
  • Verify if the USB-C interface of the device can support DP alternate mode.
  • Verify if the device required more than 90 W power charging.
  • USB-C interface of device cannot support DP alternate mode.
  • Set Windows to Projection mode.
  • Ensure that the USB-C cable is not damaged.
No charging when using USB-C connection to computer, laptop, and so on No charging
  • Verify if the device can support one of 5 V / 9 V / 15 V / 20 V charging profiles.
  • Verify if the Notebook requires a >90 W power adapter.
  • If the Notebook requires a >90 W power adapter, it may not charge with the USB-C connection.
  • Ensure that you use only Dell approved adapter or the adapter that comes with the product.
  • Ensure that the USB-C cable is not damaged.
Intermittent charging when using USB-C connection to computer, laptop, and so on Intermittent charging
  • Check if the maximum power consumption of device is over 90 W.
  • Ensure that you use only Dell approved adapter or the adapter that comes with the product.
  • Ensure that the USB-C cable is not damaged.
No image when using USB-C MST Black screen or second DUT is not Prime mode.
  • USB-C input, Go to OSD menu, under Display Info check that the Link Rate is HBR2 or HBR3, if Link Rate is HBR2, suggest using USB-C to DP cable to turn on MST.
No network connection Network dropped or Intermittent Do not switch the power button on or off when the network is connected. Keep the power button On.
The LAN port is not functioning Operating system setting or cable connection issue
  • Ensure that the latest BIOS and drivers for your computer are installed on your computer.
  • Ensure that the RealTek Gigabit Ethernet Controller is installed in the Windows Device Manager.
  • If your BIOS Setup has a LAN GbE Enabled/Disabled option, ensure it is set to Enabled.
  • Ensure that the Ethernet cable is connected securely on the monitor and the hub, router, and firewall.
  • Check the status LED of the Ethernet cable to confirm connectivity. Reconnect both ends of the Ethernet cable if the LED is not lit.
  • First turn off the Computer and unplug the Type-C cable and power cable of the monitor. Then, turn on the computer, plug in the monitor power cable and Type-C cable.

The following table contains information about troubleshooting USB issues on your Dell U2723QE monitor.

Table 4: Troubleshooting USB issues on Dell U2723QE monitor.
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.
Super speed USB 3.2 Gen2 interface is slow. Super speed USB 3.2 Gen2 devices working slowly or not working at all
  • Check that your computer is USB 3.0 capable.
  • Some computers have USB 3.0, 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 3.0 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 3.0 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 3.0 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 11, Windows 10, Windows 8 or 8.1, and Windows 7:

  1. For Windows 8 and Windows 8.1 only, select the Desktop tile to switch to classic desktop view.
  2. Right-click the desktop and click Screen Resolution.
  3. Click the dropdown list of the Screen Resolution and select 3840 x 2160.
  4. Click OK.

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 3840 x 2160.
  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 3840 x 2160.
  5. Click Apply.

The Dell U2723QE monitor has two built-in diagnostics that are available:

  • Self-Test Feature Check - The self-test feature check on the Dell U2723QE monitor allows you to check whether the monitor is functioning properly.

  • Built-In Self-Test - The Dell U2723QE 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 U2723QE monitor.

The troubleshooting section of this article provides information about troubleshooting common issues with your Dell U2723QE 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 U2723QE monitor. For additional product-specific information, see the user manual of the Dell U2723QE 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 U2723QE monitor. For additional product-specific information, see the user manual of the Dell U2723QE monitor.

The USB-C port on your Dell U2723QE supports USB Power Delivery, Data, and DisplayPort video signal. The USB-C port can be used for video and data signal, and supply power (90 W) to a compatible laptop using a single USB-C cable that is provided with the monitor.

NOTE: Dell U2723QE can supply power using the USB-C cable only to a compatible laptop that supports Power Delivery (PD) over USB-C. Not all laptops with USB-C support Power Delivery. For more information, see the user manual or contact the laptop manufacturer.
NOTE: USB-C power delivery-compliant port (PD version 2.0) delivers up to 90 W of power. If your laptop requires more than 90 W to operate and the battery is drained. It is recommended you use the standard AC adapter of the laptop to turn on and charge the laptop battery.

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 U2723QE monitor, see the monitor orientation section of this article.

Affected Products

Dell U2723QE
Article Properties
Article Number: 000200094
Article Type: How To
Last Modified: 13 Feb 2023
Version:  3
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