Dell U2719DC Monitor Usage and Troubleshooting Guide

The key features of Dell U2719DC monitor are:

• 2560 x 1440 resolution with full-screen support for lower resolutions.
• Ultra-thin bezel minimizes the bezel gap in multi-monitor usage, enabling easier set up with an elegant viewing experience.
• Mega dynamic contrast ratio (8,000,000:1).
• Single USB (Type-C) port to supply power to compatible laptop while receiving video signal and USB data.
• Tilt, swivel, pivot and vertical extension adjustment capabilities.
• Wide viewing angles with 99% sRGB color with an average Delta E<2.
• Extensive digital connectivity with DisplayPort helps future-proof your monitor.
• 0.3 W standby power when in the sleep mode.
• Optimize eye comfort with a flicker-free screen.

This section provides some specifications of the Dell U2719DC monitor. To learn more about the specifications of Dell U2719DC monitor, see the User Manual at the Dell Manuals website.

Figure 1: Dell U2719DC Back Panel Ports

Label	Description	Use
1	AC power port	Connect the monitor power cable.
2	HDMI port	Connect your computer with HDMI cable (optional).
3	DisplayPort port (input)	Connect your computer with DisplayPort cable.
4	USB-C/DisplayPort	Connect to your computer using the USB-C cable.
5	DisplayPort port (output)	DisplayPort output for MST (multi-stream transport) capable monitor. To enable MST, see the Connecting the Monitor for DisplayPort MST Function section in the User Manual.
6	Audio line-out port	Connect speakers to playback audio coming through USB-C or DisplayPort audio channels. Note: The audio line-out port does not support heaDisplayPorthones.
7	USB downstream ports	Connect a USB device. The USB ports can be used after connecting the USB cable (USB-C to USB-C) from the computer to the monitor. Note: USB port with the battery icon supports Battery Charging 1.2
8	Stand lock	Lock the stand to the monitor using a M3 x 6 mm (U2719DC) and a M3 x 8 mm (U2419HC) screw (screw not included).

Ensuring that your Dell monitor is setup properly - assembling the monitor stand and setting up the monitor ergonomically, connecting the cables and organizing them, 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, refer to the Setting Up the Monitor section in the User Manual of your Dell U2719DC monitor.
To learn how to setup any other stand with a monitor, refer to the respective stand setup guide for setup instructions.

Ergonomics

The location and position of the monitor is almost as important as what model that you buy. The monitor should be directly in front of you, at an arm’s length away (between 20-40 inches from your eyes), with the top edge of the screen at eye level when you are sitting comfortably. You may need to adjust the chair height or the height of the monitor to achieve this.

Connecting your monitor to the PC

To connect your Dell U2719DC monitor to your PC:

1. Turn off your PC and disconnect the power cable.
2. Connect the DisplayPort, Mini-DisplayPort or DisplayPort (DisplayPort), HDMI or VGA cable to the corresponding video or display port on the back of your PC.
3. Connect the USB upstream cable to the monitor and PC (if applicable).

To learn more about connecting a monitor to the PC, refer to the Dell knowledge-base article How do I connect a monitor to a PC?.

Connecting the monitor using an HDMI cable

Figure 3: Connecting the Dell U2719DC monitor to the computer.

Connecting the monitor using a DisplayPort (DisplayPort) cable

Figure 4: Connecting the Dell U2719DC monitor to the computer.

Connecting the monitor using a USB-C cable

Figure 5: Connecting the Dell U2719DC monitor to the computer.

Connecting multiple monitors using DisplayPort Multi-Stream Transport (MST)

Note: To use the MST feature, the graphics card or GPU must be certified for DisplayPort 1.2 with MST. To learn more, see the user manual or specifications of the graphics card on the card manufacturers website.

Figure 6: Connecting the Dell U2719DC monitor to the computer.

Connecting multiple monitors using USB-C and DisplayPort Multi-Stream Transport (MST)

Note: The maximum number of supported monitors through MST is subject to the bandwith of the USB-C source. See the product specific problems –No image when using USB-C MST section in the User Manual.

Figure 7: Connecting the Dell U2719DC monitor to the computer.

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 3 (Figure 8) at the bottom of the monitor.

To learn more about how to use the On-Screen Display (OSD) menu, refer to the Operating Your Monitor section in the User Manual of Dell U2719DC monitor.

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

Resetting a monitor to factory defaults can help resolve many video or display issues. To reset your Dell U2719DC monitor to factory default settings, follow these instructions:

1. Press Button 3 (Figure 9)on the monitor to enter the On-Screen Display (OSD) Menu.
2. Press Button 1 or Button 2 to highlight Others option in the menu and press Button 3 to select.
3. Press Button 1 or Button 2 to highlight Factory Reset option in the menu and press Button 3 to select.
4. Press Button 3 to confirm the reset action.

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 will help determine if the Dell monitor is functioning normally. To learn more about diagnostic options on a Dell monitor, refer to 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.

• Self Test Feature Check
• Built-In Self Test

Your Dell U2719DC 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:

1. Turn off both your computer and the monitor.
2. 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.
3. Turn on the monitor.
4. Turn off your monitor and reconnect the video cable: then turn on both your computer and the monitor.
5. 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 U2719DC monitor has a built-in diagnostic tool that 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 etc., it is always a good practise to isolate the monitor by running the Built-In Diagnostics.

1. Make sure that the screen is clean (no dust particles on the surface of the screen).
2. Unplug the video cable(s) from the back of the computer or the monitor. The monitor will now enter self-test mode.
3. On the front panel, press and hold Button 1 for 5 seconds. A gray screen appears.
4. Carefully inspect the screen for abnormalities.
5. Press Button 1 on the front panel again. The color of the screen changes to red.
6. Inspect the display for any abnormalities.
7. Repeat step 5 and step 6 to inspect the display in green, blue, black, white and text screens.
8. The test is complete when the white screen appears.
9. Press Button 1 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/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 are hard to see and do not affect the display quality or usability. For more information, refer to the Dell knowledge-base article Dell LCD Monitor Pixel Guidelines.

This section provides information on troubleshooting steps that can help resolve the most common issues with the Dell U2719DC monitor. Alternatively, to learn more about troubleshooting common issues on Dell monitors, refer to the Dell knowledge-base article Troubleshooting Display or Video Issues on a Dell Monitor.

Common Problem	What User Experiences	Possible Solution
No Video - Power LED Off	No picture	Make sure that the power cable connecting the monitor is properly connected and secure. Verify that the power outlet is functioning properly using any other electrical equipment. Make sure that the power button is depressed fully. Test with known good cable and known good system if possible.
No Video - Power LED On	No picture or no brightness.	Increase the brightness and contrast of the monitor through On-Screen Display Menu (OSD). Perform monitor self-test feature check. Check for bent or broken pins in the video cable connector. Reseat both ends of video cable. Try with known good video cable. Run the built-in diagnostics. Make sure that the correct input source is selected via the Input Source Select button. Test monitor with known good system if available.
Poor Focus	Picture is fuzzy, blurry or ghosting.	Reseat both ends of video cable. Try with known good video cable. Perform Auto Adjust via On-Screen Display Menu (OSD). Adjust the Phase and Pixel Clock controls via On-Screen Display Menu (OSD). Eliminate video extension cables. Reset the monitor to Factory Settings.
Shaky/Jittery Video	Wavy picture or fine movement.	Perform Auto Adjust via On-Screen Display Menu (OSD). Adjust the Phase and Pixel Clock controls via On-Screen Display Menu (OSD). Reset the monitor to Factory Settings. Check for environmental factors (like fans or other sources of interference). Relocate the monitor and test it in another room.
Missing Pixels	LCD screen has spots.	Cycle power on-off. Pixel that is permanently off is a natural defect that can occur in LCD technology. Run the built-in diagnostics.
Stuck-On/Off Pixels	LCD screen has bright spot.	Cycle power on-off. A few permanently bright or dark pixels are considered normal by industry standards. The exact number of pixels allowed varies depending on the monitor. Refer to Dell Monitor Quality and Pixel Policy for more details. Run the built-in diagnostics.
Brightness Problems	Picture too dim or too bright.	Dim/discolored video can be caused by the video cable, so try reseating the cable and swapping with a known good part. Reset the monitor to the Factory Settings. Perform Auto Adjust via On-Screen Display Menu (OSD). Adjust the Brightness/Contrast controls via the On-Screen Display Menu (OSD).
Geometric Distortion	Screen not centered correctly.	Reset the monitor to Factory Settings. Perform Auto Adjust via On-Screen Display Menu (OSD). Adjust the Brightness/Contrast controls through the On-Screen Display Menu (OSD). When using DisplayPort input, the positioning adjustments are not available.
Horizontal/Vertical Lines	Screen has one or more lines.	Reset the monitor to the Factory Settings. Perform Auto Adjust via On-Screen Display Menu (OSD). Adjust Phase and Pixel Clock controls via On-Screen Display Menu (OSD). Perform monitor self-test feature check and determine if these lines are also in self-test mode. Check for bent or broken pins in the video cable connector. Run the built-in diagnostics. When using DisplayPort input, the positioning adjustments are not available.
Synchronization Problems	Screen is scrambled or appears torn.	Reset the monitor to the Factory Settings. Perform Auto Adjust via On-Screen Display Menu (OSD). Adjust Phase and Pixel Clock controls via On-Screen Display Menu (OSD). Perform monitor self-test feature check to determine if the scrambled screen appears in self-test mode. Check for bent or broken pins in the video cable connector. Restart the computer in the power safe mode.
Safety-Related Issues	Visible signs of smoke or sparks.	Do not perform any troubleshooting steps. Contact Dell Technical Support immediately.
Intermittent Problems	Monitor malfunctions on and off.	Make sure that the video cable is connected properly with the monitor and the computer. Reset the monitor to the Factory Settings. Run the self-test feature and determine if the intermittent problem occurs in the self-test mode.
Missing Color	Picture does not have color.	Run the monitor self-test feature check. Make sure 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.	Change the color-setting mode in the Color Settings On-Screen Display Menu (OSD) to Graphics or Video, depending on the application. Try a different color preset setting in the Color Settings On-Screen Display Menu (OSD). Adjust the R, G, B value in the Color Settings OSD, if Color Management is turned off. Change the input color format to PC RGB or YPbPr in the Color Settings On-Screen Display Menu (OSD). Run the built-in diagnostics.
Image Retention from a Static Image Left on the Monitor for a Long Period	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. Use LCD Conditioning feature under Other Settings to eliminate image retention.
Screen image is too small	Image is centered on screen, but does not fill entire viewing area	Check the Aspect Ratio setting in the On-Screen Display Menu (OSD). Reset the monitor to the Factory Settings.
No Input Signal when user controls are pressed	No picture, the power LED light is white	Check the signal source. Ensure the computer is not in power saving mode by moving the mouse or pressing any key on the keyboard. Make sure 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	Due to different video formats (aspect ratio) of DVDs & videos, the monitor may display in screen. Run the built-in diagnostics.
Light leak from the monitor	The monitor appears to have light leak from the edges in a dark room	This is normal behaviour of the monitor. Dell consumer monitors are inspected at 150 lux ambient lighting (similar to typical office lighting). Dell UltraSharp & Gaming monitors are inspected with a tighter criteria of 70 lux ambient lighting (dimly lit room but not completely dark).
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 DisplayPort alternate mode. Verify if the device required more than 65 W power charging. USB-C interface of device cannot support DisplayPort 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 or 20 V charging profiles. Verify if the laptop requires more than a 65 W power adapter. If the laptop requires more than a 65 W power adapter, it will not charge with the USB-C connection. Ensure that you use only Dell approved power adapter or the adapter that comes with the product. Ensure that the USB-C cable is not damaged. For optimal performance, use the USB-C cable provided with the monitor.
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 65 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 DisplayPort connection to the PC	Black screen	Verify which DisplayPort standard (DisplayPort 1.1a or DisplayPort 1.4) is your Graphics Card certified to. Download and install the latest graphics card driver. Some DisplayPort 1.1a graphics card cannot support DisplayPort 1.4 monitors. Go to OSD menu, under Input Source selection, press and hold DisplayPort select key for 8 sec to change the monitor setting from DisplayPort 1.4 to DisplayPort 1.1a.
No image when using USB-C MST	Black screen or 2nd DUT is not Prime mode	USB-C input, Go to OSD menu, under Display Info check the Link Rate is HBR2 or HBR3, if Link Rate is HBR2, suggest to use USB-C to DisplayPort cable to turn on MST.

To learn more about how to view or download the User Guides & Manuals for your Dell product, refer to the Dell knowledge-base article Manuals and Documentation for your Dell Product.

• Dell U2719DC – User’s Guide
• Dell U2719DC – Quick Setup Guide
• Dell U2719DC – Dell Display Manager User’s Guide