Dell U3223QE Monitor Usage and Troubleshooting Guide
Summary: Learn how to use and troubleshoot issues that are related to the Dell UltraSharp 32 4K USB-C Hub Monitor - U3223QE.
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 U3223QE monitor has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD), and LED backlight. The monitor features include:
- 80.01 cm (31.5 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.
- 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 to supply power to compatible notebook 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.
- ≤ 0.3 W in Off Mode.
- Power and OSD buttons lock.
- Security lock slot.
- 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 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 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.
This section provides some specifications of the Dell U3223QE monitor. To learn more about the specifications of Dell U3223QE monitor, see the User's Guide at the Dell Manuals website.
| Screen type |
|
|---|---|
| Panel technology |
|
| Maximum resolution |
|
| Viewing angle |
|
| Contrast ratio |
|
| Response time |
|
| Color gamut |
|
| Color depth |
|
| Ports and connectors |
|
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 U3223QE monitor.
To learn how to set up any other stand with a monitor, see the respective stand setup guide for setup instructions.
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 U3223QE 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. Learn How to Connect a Monitor to a Dell Computer.
- Connect the USB upstream cable to the monitor and personal computer.
Dell U3223QE 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 U3223QE should not be rotated either to 180° (landscape) or 90° (portrait).
When setting up your Dell U3223QE monitor, ensure that the monitor front panel buttons is on the bottom right.
Using the Tilt, Swivel and Vertical Extension
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, Swivel and Vertical Extension on Dell U3223QE 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: Rotating the Dell U3223QE monitor
Use the joystick control on the rear of the monitor to make OSD adjustments.
Learn more about using the On-Screen Display (OSD) menu. See the Operating Your Monitor section in the User's Guide of Dell U3223QE monitor.
Figure 3: Dell U3223QE Joystick Control
| Button | Function | Description |
|---|---|---|
| Joystick Control | Controls to make adjustments to the On-Screen Display. |
|
Resetting a monitor to factory defaults can help resolve many video or display issues. To reset your Dell U3223QE 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 U3223QE Joystick Control
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. Learn 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 U3223QE 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.
- 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 U3223QE 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).
- Unplug the video cables from the back of the computer or the monitor. The monitor will now enter self-test mode.
- On the front panel, press and hold Button 2 on the front panel for 5 s. A gray screen appears.
- Carefully inspect the screen for abnormalities.
- Press Button 2 on the front panel again. The color of the screen changes to red.
- Inspect the display for any abnormalities.
- Repeat step 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 Button 2 to exit the Built-In Self-Test diagnostics.
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 our Dell Display Pixel Guidelines.
This section provides information about troubleshooting steps that can help resolve the most common issues with the Dell U3223QE monitor. Alternatively, learn How to Troubleshoot Display or Video Issues on a Dell Monitor or go to our monitor self-help guide.
| Common Problem | What User Experiences | Possible Solution |
|---|---|---|
| No Video - Power LED Off | No picture |
|
| 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. |
|
| 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. |
|
| Screen image is too small. | Image is centered on screen, but does not fill entire viewing area. |
|
| No Input Signal when user controls are pressed. | No picture, the power LED light is white. |
|
| The picture does not fill the entire screen. | The picture cannot fill the height or width of the screen. |
|
| Troubleshooting USB Issues | ||
|---|---|---|
| Specific Symptoms | What User Experiences | Possible Solution |
| USB interface is not working. | USB devices are not working. |
|
| Super speed USB 3.2 Gen2 interface is slow. | Super speed USB 3.2 Gen2 devices working slowly or not working at all |
|
| 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. |
|
To learn more about how to view or download the User Guides and Manuals for your Dell product. See the Manuals and Documentation for your Dell Product.
- Dell U3223QE - User’s Guide
- Dell U3223QE - Quick Setup Guide
- Dell U3223QE - 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 3840 x 2160.
- 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 3840 x 2160.
- 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 3840 x 2160.
- Click Apply.
To reset the Dell U3223QE Monitor to factory defaults, see the Reset to Factory Settings section of this article.
The Dell U3223QE monitor has two built-in diagnostics that are available:
- Self-Test Feature Check - The self-test feature check on the Dell U3223QE monitor allows you to check whether the monitor is functioning properly.
- Built-In Self-Test - The Dell U3223QE 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 U3223QE 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 U3223QE 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.
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 U3223QE monitor.
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 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 U3223QE supports DisplayPort 1.4 connectivity with your personal computer.
- 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 U3223QE Joystick Controls
Dell U3223QE 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.
- 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 U3223QE Joystick Control
USB Type-C port on your Dell U3223QE 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.
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. Learn How to Download and Install Dell Drivers.
Dell U3223QE 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 U3223QE should not be rotated either to 180° (landscape) or 90° (portrait).
When setting up your Dell U3223QE monitor, ensure that the monitor front panel buttons is on the bottom right.
Using the Tilt, Swivel and Vertical Extension
With the stand that is attached to the monitor, you can tilt and swivel the monitor for the most comfortable viewing angle.
Figure 7: Using Tilt, Swivel and Vertical Extension on Dell U3223QE 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 8: Rotating the Dell U3223QE monitor