Dell UltraSharp U3023E Monitor Usage and Troubleshooting Guide
Summary: Learn how to use and troubleshoot issues that are related to the Dell UltraSharp 30 USB-C Hub Monitor U3023E.
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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 the expanding section below.
The Dell UltraSharp U3023E monitor has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD), and LED backlight. The monitor features include:
- 75.62 cm (30.0 in.) active area display (Measured diagonally) 2560 x 1600 (16:10) resolution, plus full-screen support for lower resolutions.
- Wide viewing angles with 100% sRGB 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.
- 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-C Power Delivery (90 W) 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) Select mode.
- Support DSC (Display Stream Compression) function. DSC achieves up to 1:3 compression ratio without Visual Loss.
- Supports USB KVM function.
- The Monitor is designed with Dell Power Button Sync (DPBS) feature to control personal computer computer power state from monitor power button. *
- The Monitor allows multiple monitors that are daisy chained over DisplayPort to synchronize a predefined group of OSD settings in the background by Multi-Monitor Sync (MMS).
- Premium Panel Exchange for peace of mind.
- Optimize eye comfort with a flicker-free screen minimizes hazard-blue light emission.
- The Monitor use Low Blue Light panel and compliance with TUV Rheinland (Hardware Solution) at factory reset/default setting model.
- 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.
Warning: The possible long-term effects of blue light emission from the monitor may damage your eyes, including eye fatigue or digital eye strain. ComfortView feature is designed to reduce the amount of blue light that is emitted from the monitor to optimize eye comfort.
This section provides some specifications of the Dell UltraSharp U3023E monitor. To learn more about the specifications of Dell UltraSharp U3023E monitor, see the User's Guide at the Dell Manuals website.
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Quick Access:
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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. These will only help make the viewing experience the best it possibly can 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 UltraSharp U3023E 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 UltraSharp U3023E 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 20-40 inches from your eyes). The top edge of the screen at eye level when you are sitting comfortably. You may need to adjust your chair height or the height of the monitor to achieve this.
Connecting your monitor to the personal computer
To connect your Dell UltraSharp U3023E monitor to your personal computer:
- Turn Off your personal computer.
- Connect the DisplayPort or USB cable, and the USB-C cable from your monitor to the computer.
- Turn On your monitor.
Note: The U3023E default setting is DisplayPort 1.4. A DisplayPort 1.1 Graphic card may not display normally.
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.
- Select the correct input source from the OSD Menu on your monitor and then turn on your computer.
Dell UltraSharp U3023E monitor orientation must always be in landscape mode. This includes any wall-mounted monitors and monitors on a stand. In a multiple monitor setup, Dell UltraSharp U3023E should not be rotated either to 180° (landscape) or 90° (portrait).
Caution: Dell UltraSharp U3023E 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 UltraSharp U3023E 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 that is attached to the monitor, you can tilt and swivel the monitor for the most comfortable viewing angle.
Figure 1: Using Tilt and Swivel on Dell UltraSharp U3023E monitor
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.
Figure 2: Rotation of Dell UltraSharp U3023E
Use the buttons at the bottom of the monitor to access the On-Screen Display (OSD) menu of the monitor. To access the On-Screen Display (OSD) menu, press Joystick (Figure 3) at the bottom of the monitor.
Learn more about using the On-Screen Display (OSD) menu. See the Operating Your Monitor section in the User's Guide of Dell UltraSharp U3023E 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.
Figure 3: Dell UltraSharp U3023E Power button and OSD Joystick
| Button | Function | Description |
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| Button 1 | Power On/Off button (with LED indicator). | 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. |
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Resetting a monitor to factory defaults can help resolve many video or display issues. To reset your Dell UltraSharp U3023E 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 Other 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 4: Dell UltraSharp U3023E Reset Screen
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 to Run a Diagnostic Test 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 UltraSharp U3023E 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.
- Turn on the monitor.
The 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, one of the dialogs that are shown below will continuously scroll through the screen.
Figure 5: Dell UltraSharp U3023E Floating Dialog Box
- This box also appears during normal computer operation, if the video cable becomes disconnected or damaged.
- Turn off your monitor and reconnect the video cable; then turn On both your computer and the monitor.
Your Dell UltraSharp U3023E monitor has a built-in diagnostic tool. It helps to determine if the screen abnormality you are experiencing is a problem with the monitor or with the video card on your computer.
When you notice screen abnormalities like distortion, clarity, horizontal or vertical lines, color fade, it is always a good practice to isolate the monitor by running the Built-In Diagnostics.
- Ensure that the screen is clean (no dust particles on the surface of the screen).
- On the back of the monitor, press on the joystick and move it up/down/left/right for 4 s. A menu appears.
- Move the joystick to highlight the diagnostic icon (A monitor on top of a wrench) and press the joystick to confirm.
- A gray test pattern appears, carefully inspect the screen for abnormalities.
- Press the joystick again. The pattern changes and the color of the screen changes to red.
- Inspect the display for any abnormalities.
- Repeat steps 5 and step 6 to inspect the display in green, blue, black, white, and text screens.
- The test is complete when the white screen appears.
- Press the joystick to exit the Built-In Self-Test diagnostics.
Note: If you do not detect any screen abnormalities upon using the built-in 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 UltraSharp U3023E monitor. Alternatively, to learn more about troubleshooting common issues on Dell monitors, see the Dell knowledge-base article How to Troubleshoot Display or Video Issues on a Dell Monitor or use our Monitor self-help Guide.
| Common Problem | What User Experiences | Possible Solution |
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| 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 | 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 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 | Monitor malfunctions on and off. |
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| Missing Color | Picture 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 | Faint shadow from the static image appears on the screen. |
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| Webcam/Mic does not work. |
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| Troubleshooting USB Issues | ||
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| Specific Symptoms | What User Experiences | Possible Solution |
| USB interface is not working. | USB devices are not working. |
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| Super speed USB 3.2 Gen2 interface is slow. | Super speed USB 3.2 Gen2 devices 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 respond slowly or only work as the distance between themselves and their receiver decreases. |
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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 UltraSharp U3023E Monitor - User’s Guide
- Dell UltraSharp U3023E Monitor - Quick Setup Guide
- Dell UltraSharp U3023E Monitor - Dell Display Manager User’s Guide
Additional Information
Frequently asked questions
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 classic desktop view.
- Right-click the desktop and click Screen Resolution.
- Click the dropdown list of the Screen Resolution and select 2560 x 1600.
- 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 2560 x 1600.
- 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 2560 x 1600.
- Click Apply.
Note: If you do not see the recommended resolution as an option. You may need to update the video card (GPU) driver by visiting the Dell Drivers & Downloads 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 UltraSharp U3023E Monitor to factory defaults, see the Reset to Factory Settings section of this article.
The Dell UltraSharp U3023E monitor has two built-in diagnostics that are available:
- Self-Test Feature Check - The self-test feature check on the Dell UltraSharp U3023E monitor allows you to check whether the monitor is functioning properly.
- Built-In Self-Test - The Dell UltraSharp U3023E 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 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 UltraSharp U3023E 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 UltraSharp U3023E 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.
The Dell UltraSharp U3023E monitor Using the On-Screen Display menu section of this Dell knowledge-base article provides information about the Dell UltraSharp U3023E monitor On-Screen Display menu.
More 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 6) on the monitor to enter the On-Screen Display (OSD) Menu.
- Press up or down to highlight Other 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 the joystick to exit the OSD menu.
Dell UltraSharp U3023E supports DisplayPort 1.4 connectivity with your computer.
Note: The default factory setting on the Dell UltraSharp U3023E is DisplayPort 1.4 (DP1.4).
- Press the joystick (Figure 6) 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 and confirm your selection.
Figure 6: Dell UltraSharp U3023E Power Button and OSD Joystick
Dell UltraSharp U3023E supports HDMI 2.0 connectivity with your personal computer.
Note: The default factory setting on the Dell UltraSharp U3023E is HDMI 2.0.
- Press the joystick (Figure 7) 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 and confirm your selection.
Figure 7: Dell UltraSharp U3023E Power Button and OSD Joystick
The Dell UltraSharp U3023E monitor orientation section of this Dell knowledge-base article provides information about the Dell UltraSharp U3023E monitor orientation.
Affected Products
Dell U3023EArticle Properties
Article Number: 000197134
Article Type: How To
Last Modified: 02 May 2023
Version: 4
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