Dell P2723DE Monitor Usage and Troubleshooting Guide
Summary: Learn how to use and troubleshoot issues related to the Dell 27 USB-C Hub Monitor - P2723DE.
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 P2723DE monitor has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD) and LED backlight. The monitor features include:
- 68.47 cm (27 in.) viewable area display (measured diagonally).
- 2560 x 1440 resolution, with full-screen support for lower resolutions.
- Color gamut of 99% sRGB (typical).
- Digital connectivity with DisplayPort, USB-C, and HDMI.
- Single USB-C to supply power (PD 90 W) to a compatible laptop while receiving video and data signal.
- Tilt, swivel, height, and rotate adjustment capabilities.
- Ultrathin bezel minimizes the bezel gap in multimonitor usage, enabling easier setup with an elegant viewing experience.
- Removable stand and Video Electronics Standards Association (VESA) 100 mm mounting holes for flexible mounting solutions.
- Equipped with one USB-C upstream port and 4 SuperSpeed USB 5 Gbps (USB 3.2 Gen1) Type-A downstream ports.
- 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 joystick buttons lock.
- Security lock slot.
- Stand lock.
- ≤ 0.3 W in Standby Mode.
- Optimize eye comfort with a flicker-free screen and low blue light feature.
- The monitor use Low Blue Light panel and is in compliance with TUV Rheinland (Hardware Solution) at factory reset/default setting model (Preset mode: Standard).
This section provides some specifications of the Dell P2723DE monitor. To learn more about the specifications of Dell P2723DE monitor, see the User's Guide at the Dell Manuals website.
| Screen type |
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| Panel technology |
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| Maximum resolution |
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| Viewing angle |
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| Contrast ratio |
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| Response time |
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| Color gamut |
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| Color depth |
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| Ports and connectors |
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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 P2723DE 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 P2723DE 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.
To learn more about connecting your monitor to the personal computer, see the Dell knowledge-base article: How do I connect a monitor to a personal computer?
- Connect the USB upstream cable to the monitor and personal computer.
Dell P2723DE 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 P2723DE should not be rotated to 180° (landscape). The monitor supports 90° (portrait) orientation.
When setting up your Dell P2723DE 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 and Swivel on Dell P2723DE monitor
Figure 2: Using Vertical Extension
When mounted on the wall or on a monitor arm, the set-up must comply with the recommended panel orientation and working angle.
Figure 3: VESA wall mounting (optional)
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 Button 5 (Figure 1) 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 P2723DE monitor.
Figure 4: Dell P2723DE Joystick Control
| Button | Function | Description |
|---|---|---|
| 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 P2723DE 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 5: Dell P2723DE 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. To learn more about diagnostic options on a Dell monitor, see the Dell knowledge-base article: How do I run diagnostics 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 P2723DE 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 P2723DE 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 the Dell knowledge-base article Dell LCD Monitor Pixel Guidelines.
This section provides information about troubleshooting steps that can help resolve the most common issues with the Dell P2723DE monitor. Alternatively, to learn more about troubleshooting common issues on Dell monitors, see the Dell knowledge-base article Troubleshooting Display or Video Issues on a Dell Monitor or use our 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 | 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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| Geometric Distortion | Screen not centered correctly. |
NOTE: When using DisplayPort input, the positioning adjustments are not available.
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| Horizontal or Vertical Lines | Screen has one or more lines. |
NOTE: When using DisplayPort input, the positioning adjustments are not available.
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| Synchronization Problems | Screen is scrambled or appears torn. |
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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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| Screen image is too small. | Image is centered on screen, but does not fill entire viewing area. |
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| Image Ghosting | Fast-moving images leave a trail of shadow images. | On certain video and applications with fast-moving images, imaging ghosting, which appears as a trailing shadow, may occur. Change the Response Time to Fast in the Display 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 | Due to legacy platform cannot recognize or output 2560 x 1440, we suggest changing EDID to lower resolution to cover this compatibility problem.
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| Unable to switch back to native resolution (2560 x 1440) after Picture by Picture is turned off. | Dell P2723DE 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 personal 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 (2560 x 1440). |
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| Display mode changes from "Second screen only" to "Extended mode" after opening and closing the laptop LCD. | The display mode on your personal computer reverts to "Duplicate" or "Extend,." This depends on which was selected before you changed to "Second screen only" or "Projector only" when you close and open the laptop screen. 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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| Monitor blinks twice when connected to personal computer with 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 personal computer is using a Nvidia Graphic NVS 310 card and 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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| Monitor has sound icon when Dell P2723DE is connected to a laptop using HDMI. | Dell P2723DE does not support audio or sound using HDMI. Speakers or headphones must be connected using the audio connector on the personal computer. |
To resolve the audio icon displaying, update the video or graphics (GPU) driver to the latest version. To learn how to download and update a device driver, see the Dell knowledge-base article How do I download and install a device driver? |
| Monitor will not display Blu-Ray video after the monitor is powered-off and turned 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 computer to the monitor. |
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| Cannot enable YCbCr color mode on the monitor. | When monitor is connect to the personal computer using HDMI, the video or graphics card (GPU) controls the YCbCr setting. | Disable the YCbCr setting from the video or graphics utility like Intel HD Graphics Control Panel. |
| Monitor will not support the YCbCr color format when a USB Type-C to HDMI dongle is connected from the monitor to the personal computer. | Some combinations of USB Type-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 like 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 personal computer when connected to a Dell docking station. | To learn more about how to set up and configure the Dell P2723DE monitor with a Dell docking station. See the System Requirements and Supported Configuration in the support site. |
| Light leak from the monitor | The monitor appears to have light leak from the edges in a dark room | This is normal behavior of the monitor. Dell consumer monitors are inspected at 150-lux ambient lighting (similar to typical office lighting). Dell UltraSharp and Gaming monitors are inspected with a tighter criteria of 70-lux ambient lighting (dimly lit room but not dark). See the Dell knowledge-base article 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 P2723DE monitor uses a curved IPS panel, the corners of the screen may appear slight yellowish or pinkish, especially when viewing in 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 P2723DE monitor is factory default set at HDMI EDID with three Block (Detailed Timing Descriptor) to support 2560 x 1440 @ 60 Hz. To display a resolution of 3840 x 1080 @ 60 Hz or lower, you need to switch the monitor HDMI EDID from three Block to two Block.
To display 2560 x 1440 resolution over HDMI again, you need to switch the monitor back to HDMI EDID 3 Block. Follow Steps 1 & 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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| Troubleshooting USB Issues | ||
|---|---|---|
| Specific Symptoms | What User Experiences | Possible Solution |
| USB interface is not working. | USB devices are not working. |
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| USB-C port does not supply power. | USB devices cannot be charged. |
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| SuperSpeed USB 5 Gbps (USB 3.2 Gen1) interface is slow. | SuperSpeed USB 5 Gbps (USB 3.2 Gen1) devices working slowly or not working at all. |
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| 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. |
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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 P2723DE - User’s Guide
- Dell P2723DE - Quick Setup Guide
- Dell P2723DE - Dell Display Manager User’s Guide
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 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 2560 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 2560 x 1440.
- Click Apply.
To reset the Dell P2723DE Monitor to factory defaults, see the Reset to Factory Settings section of this article.
The Dell P2723DE monitor has two built-in diagnostics that are available:
- Self-Test Feature Check - The self-test feature check on the Dell P2723DE monitor allows you to check whether the monitor is functioning properly.
- Built-In Self-Test - The Dell P2723DE 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 P2723DE 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 P2723DE 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 Troubleshooting section of this Dell knowledge-base article provides information about troubleshooting common issues with the Dell P2723DE 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 P2723DE 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 P2723DE supports both DisplayPort 1.4 connectivity with your personal computer. If the video or graphics card (GPU) on your personal computer supports DisplayPort 1.2, it is required to change the monitor to DisplayPort 1.2 mode.
- 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.
- Press and hold on the joystick for approximately 10 s until the DisplayPort configuration message appears.
Figure 6: Dell P2723DE Joystick Control
Dell P2723DE 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 7: Dell P2723DE Joystick Control
USB Type-C port on your Dell P2723DE 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 using USB Type-C. It is recommended to update the BIOS and Video or Graphics card (GPU) driver. To learn how to download and update a device driver, see the Dell knowledge-base article: How do I download and install a device driver?
Dell P2723DE 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 P2723DE should not be rotated to 180° (landscape). The monitor supports 90° (portrait) orientation.
When setting up your Dell P2723DE 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 8: Using Tilt and Swivel on Dell P2723DE monitor
Figure 9: Using Vertical Extension
When mounted on the wall or on a monitor arm, the set-up must comply with the recommended panel orientation and working angle.
Figure 10: VESA wall mounting (optional)