Dell 24 USB-C Monitor - P2421DC User’s Guide Monitor Model: P2421DC Regulatory Model: P2421DCc
NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.
Contents About your monitor . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Package contents . . . . . . . . . . . . . . . . . . . . . . 6 Product features . . . . . . . . . . . . . . . . . . . . . . 8 Identifying parts and controls . . . . . . . . . . . . . . . 10 Front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Back view . . . . . . . . . . . . . . . . . . . . .
Connecting your monitor . . . . . . . . . . . . . . . . . 28 Connecting the DP cable . . . . . . . . . . . . . . . . . . . . . . 28 Connecting the monitor for DP Multi-Stream Transport (MST) function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Connecting the USB Type-C cable . . . . . . . . . . . . 29 Connecting the monitor for USB-C Multi-Stream Transport (MST) function . . . . . . . . . . .
Vertical Extension . . . . . . . . . . . . . . . . . . . . . 58 Rotating the Monitor . . . . . . . . . . . . . . . . . . . . . . . . 59 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Built-in diagnostics . . . . . . . . . . . . . . . . . . . . 63 Setting USB-C Prioritization when USB-C Charging is set to On in Off Mode . .
About your monitor Package contents Your monitor ships with the components shown below. Ensure that you have received all the components and see Contacting Dell for more information if something is missing. NOTE: Some items may be optional and may not ship with your monitor. Some features or media may not be available in certain countries.
DP 1.2 cable ( 1.8 m length) USB Type-C cable (C to C, 1.
Product features The Dell P2421DC monitor has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD), anti-static, and LED backlight. The monitor features include: ∞∞ 60.45 cm (23.8 in.) viewable area display (measured diagonally). 2560 x 1440 resolution, with full-screen support for lower resolutions. ∞∞ Wide viewing angle to allow viewing from a sitting or standing position, or while moving from side-to-side. ∞∞ Color gamut of 99% sRGB. ∞∞ High Dynamic Contrast Ratio.
WARNING: The possible long-term effects of blue light emission from the monitor may cause damage to the eyes, including eye fatigue, digital eye strain, and so on. ComfortView feature is designed to reduce the amount of blue light emitted from the monitor to optimize eye comfort.
Identifying parts and controls Front view 1 2 Control buttons Label Description Use 1 Function buttons Use the function buttons to adjust items in the OSD menu. (For more information, see Using the control buttons) 2 Power On/Off button (with power-status light) To turn the monitor on or off. Solid white light indicates the monitor is turned on and functioning normally. Blinking white light indicates the monitor is in Standby Mode.
Back view 2 3 4 DELL P2421DC Flat Panel Monitor /Monitor Plano Panel /Moniteur écran plat /⏢Ღ亟⽪ಘ Model No. /Modelo /N°de modelo /ර㲏: P2720DCc Input Ra ng /Entrade /Daya Tegangan:100-240V 50/60Hz,2.5A 䕨ޕ䴫Ⓚ Ӕ⍱䴫༃100-240Կ⢩,2.5ᆹษ,50/60䎛㥢 Consumo de energía en operación: xxxxx Wh Удельная мощность рабочего режима - xxxx Вт/см² Потребляемая мощность изделием в режиме ожидания - xx Вт Потребляемая мощность изделием в выключенном режиме - xx Вт Apparatet må lkoples jordet s kkontakt.
Side view 1 Label Description Use 1 Connect your USB device. NOTE: You can only use this port after you have connected the USB Type-C cable to the computer and USB Type-C port on the monitor. USB 3.
Bottom view 1 2 34 5 6 7 8 Bottom view without monitor stand Label Description Use 1 Power connector Connect the power cable (shipped with your monitor). 2 Security-lock slot Secure your monitor using a security lock (purchased separately) to prevent unauthorized movement of your monitor. 3 Stand lock feature To lock the stand to the monitor using a M3 x 6 mm screw (screw not included). 4 HDMI port Connect your computer with HDMI cable.
8 USB 2.0 downstream ports x 2 Connect your USB device. NOTE: You can only use this port after you have connected the USB Type-C cable to the computer and USB Type-C port on the monitor. Monitor specifications Model P2421DC Screen type Active matrix-TFT LCD Panel type In-Plane Switching Technology Viewable image Diagonal 604.5 mm (23.8 in.) Horizontal, Active Area 526.85 mm (20.75 in.) Vertical, Active Area 296.35 mm (11.67 in.) Area 156132.00 mm2 (242.16 in.2) Pixel pitch 0.2058 mm x 0.
Connectivity 1 x HDMI 1.4 1 x DP 1.2 (in) 1 x DP 1.2 (out) 1 x USB Type-C port 2 x USB 3.0 port - Side 2 x USB 2.0 port - Bottom Bezel width (edge of monitor to active area) Top 5.4 mm Left/Right 5.5 mm Bottom 20.
Supported video modes Model P2421DC Video display capabilities (HDMI/DP) 480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 1440p Preset display modes Display Mode Horizontal Frequency (kHz) Vertical Frequency (Hz) Pixel Clock (MHz) Sync Polarity (Horizontal / Vertical) VESA, 720 x 400 VESA, 640 x 480 VESA, 640 x 480 VESA, 800 x 600 VESA, 800 x 600 VESA, 1024 x 768 VESA, 1024 x 768 VESA, 1152 x 864 VESA, 1280 x 768 VESA, 1280 x 1024 VESA, 1280 x 1024 VESA, 1600 x 1200 VESA, 1680 x 1050 VESA, 1920 x 1080
MST Multi-Stream Transport (MST) Modes MST Source Monitor Maximum number of external monitor that can be supported 2560 x 1440/60 Hz 2560 x 1440/60 Hz 2 N OTE: Maximum external monitor resolution supported is 2560 x 1440 60Hz only. Electrical specifications Model P2421DC Video input signals HDMI 1.4, 600 mV for each differential line, 100 ohm input impedance per differential pair DP 1.
1 As defined in EU 2019/2021 and EU 2019/2013. 2 Max brightness and contrast setting with maximum power loading on all USB ports. 3 Pon: Power consumption of On Mode as defined in Energy Star 8.0 version. TEC: Total energy consumption in kWh as defined in Energy Star 8.0 version. This document is informational only and reflects laboratory performance.
Physical characteristics Model P2421DC Signal cable type ∞∞ Digital: DP, 20 pins ∞∞ Digital: USB Type-C, 24 pins Dimensions (with stand) Height (extended) 486.1 mm (19.14 in.) Height (compressed) 356.1 mm (14.02 in.) Width 537.8 mm (21.17 in.) Depth 166.0 mm (6.54 in.) Dimensions (without stand) Height 322.1 mm (12.68 in.) Width 537.8 mm (21.17 in.) Depth 42.7 mm (1.68 in.) Stand dimensions Height (extended) 400.8 mm (15.78 in.) Height (compressed) 353.4 mm (13.91 in.) Width 206.
Environmental characteristics Model P2421DC Compliant Standards ∞∞ ENERGY STAR certified monitor ∞∞ EPEAT registered where applicable. EPEAT registration varies by country. See www.epeat.net for registration status by country. ∞∞ TCO-certified display. ∞∞ RoHS-compliant ∞∞ BFR/PVC free monitor (excluding external cables) ∞∞ Meets NFPA 99 leakage current requirements. ∞∞ Arsenic-free glass and Mercury-free for the panel only ∞∞ Energy Gauge shows the energy level being consumed by the monitor in real time.
DisplayPort connector Pin Number 20-pin Side of the Connected Signal Cable 1 ML0 (p) 2 GND 3 ML0 (n) 4 ML1 (p) 5 GND 6 ML1 (n) 7 ML2 (p) 8 GND 9 ML2 (n) 10 ML3 (p) 11 GND 12 ML3 (n) 13 GND 14 GND 15 AUX (p) 16 GND 17 AUX (n) 18 Hot Plug Detect 19 Re-PWR 20 +3.
USB Type-C connector Pin A1 Signal GND Pin B12 Signal GND A2 SSTXp1 B11 SSTXp1 A3 SSTXn1 B10 SSTXn1 A4 VBUS B9 VBUS A5 CC1 B8 SBU2 A6 Dp1 B7 Dn1 A7 Dn1 B6 Dp1 A8 SBU1 B5 CC2 A9 VBUS B4 VBUS A10 SSRXn2 B3 SSRXp2 A10 SSRXp2 B2 SSRXp2 A12 GND B1 GND 22 │ About your monitor
Universal serial bus (USB) interface This section gives you information about the USB ports that are available on the monitor. NOTE: This monitor is Super-Speed USB 3.0 and High-Speed USB 2.0 compatible. Transfer Speed Super-speed Data Rate 5 Gbps Power Consumption* 4.5 W (Max, each port) High speed 480 Mbps 4.5 W (Max, each port) Full speed 12 Mbps 4.5 W (Max, each port) Transfer Speed High speed Data Rate 480 Mbps Power Consumption* 2.5 W (Max, each port) Full speed 12 Mbps 2.
USB 2.0 downstream connector Pin Number 1 4-pin Side of the Connector VCC 2 DMD 3 DPD 4 GND USB ports • 2 x USB 2.0 downstream - bottom • 2 x USB 3.0 downstream - side NOTE: USB 3.0 functionality requires a USB 3.0-capable computer. NOTE: The monitor’s USB interface works only when the monitor is On or in the Standby Mode. If you turn Off the monitor and then turn it On, the attached peripherals may take a few seconds to resume normal functionality.
Plug and play capability You can install the monitor in any Plug and Play-compatible system. The monitor automatically provides the computer system with its Extended Display Identification Data (EDID) using Display Data Channel (DDC) protocols so the system can configure itself and optimize the monitor settings. Most monitor installations are automatic, you can select different settings if desired. For more information about changing the monitor settings, see Operating your monitor.
Setting up the monitor Attaching the stand NOTE: The stand is detached when the monitor is shipped from the factory. NOTE: This is applicable for a monitor with a stand.If you have purchased a third-party stand refer to the respective stand setup guide for the set up instructions. To attach the monitor stand. 1. Follow the instructions on the flaps of carton to remove the stand from the top cushion that secures it. 2. Insert the stand base blocks fully into the stand slot. 3.
1 2 7. Place the monitor upright.
Connecting your monitor WARNING: Before you begin any of the procedures in this section, follow the Safety Instructions. NOTE: Do not connect all cables to the computer at the same time. It is recommend to route the cables through the cable-management slot before you connect them to the monitor. To connect your monitor to the computer: 1. Turn Off your computer and disconnect the power cable. 2. Connect the DP/USB Type-C cable from your monitor to the computer.
NOTE: Supports the DP MST feature. To make use of this feature, your PC Graphics Card must be certified to DP1.2 with MST option. NOTE: Remove the rubber plug when using DP out port. Connecting the USB Type-C cable USB Type-c USB Type-c The USB Type-C port on your monitor: ∞∞ Can be used as USB Type-C or DisplayPort 1.2, alternatively. ∞∞ Supports USB Power Delivery (PD), with profiles up to 65 W.
Connecting the monitor for USB-C Multi-Stream Transport (MST) function DP DP out USB Type-c USB Type-c NOTE: The maximum number of supported monitor via MST is subjected to the bandwith of the USB-C source. NOTE: Remove the rubber plug when using DP out port.
Organizing cables Use the cable-management slot to route the cables connected to your monitor.
Removing the stand NOTE: To prevent scratches on the screen when removing the stand, ensure that the monitor is placed on a soft and clean surface. NOTE: The following procedure is applicable only for the stand that shipped with your monitor. If you are connecting a third-party stand, see the documentation that shipped with the stand. To remove the stand: 1. Place the monitor on a soft cloth or cushion. 2. Press and hold the stand release button. 3. Lift the stand up and away from the monitor.
Wall mounting (optional) (Screw dimension: M4 x 10 mm). See the documentation that shipped with the VESA-compatible wall mounting kit. 1. Lay the monitor on a soft cloth or cushion at the edge of the desk. 2. Remove the stand. See Removing the stand for details. 3. Remove the four screws that secure the panel to the monitor. 4. Attach the mounting bracket from the wall mounting kit to the monitor. 5. To mount the monitor on the wall, see the documentation that shipped with the wall mounting kit.
Operating your monitor Power on the monitor Press the button to turn on the monitor.
USB-C charging options Dell 24 Monitor Easy Initial Setup: .. Select ‘Yes’ to enable the following function(s): Always on USB-C Charging USB-A Charging No Yes When ‘Yes’ is selected, power consumption may increase. When ‘No’ is selected, it will comply with ENERGY STAR requirements. Individual settings of the funotions can be changed in the Menu. P2421DC Using the control buttons Use the control buttons at the front of the monitor to adjust the settings on your monitor.
3 Use the Menu button at launch your on-screen display (OSD) and select the OSD menu. See Accessing the OSD menu. Menu 4 Use this button to go back to the main menu or exit the OSD main menu. Exit 5 Power On/Off button (with power-status light) To turn the monitor on or off. Solid white light indicates the monitor is turned on and functioning normally.Blinking white light indicates the monitor is in Standby Mode. OSD controls Use the buttons on the front of the monitor to adjust the image settings.
Using the On-Screen Display (OSD) menu Accessing the OSD menu NOTE: Any changes you make are automatically saved when you move to another menu, exit the OSD menu, or wait for the OSD menu to automatically close. 1. Press the button to display the OSD main menu. Dell 24 Monitor Brightness / Contrast Input Source Color 75% Display Menu 75% Personalize Others 2. Press the and buttons to move between the setting options. As you move from one icon to another, the option is highlighted. 3. Press the 4.
Icon Menu and SubDescription menus Brightness/ Use this menu to activate Brightness/Contrast adjustContrast ment. Dell 24 Monitor Brightness / Contrast Input Source Color 75% Display Menu 75% Personalize Others Brightness Contrast Brightness adjusts the luminance of the backlight. Press the button to increase the brightness and press the button to decrease the brightness (min. 0 / max. 100). Adjust the brightness first, and then adjust the contrast only if further adjustment is necessary.
Input Source Use the input source menu to select between the different video signals that may be connected to your monitor. Dell 24 Monitor Brightness / Contrast USB Type-C Input Source DP Color HDMI Display Auto Select On Menu Auto Select for USB-C Prompt for Multiple Inputs Personalize Reset Input Source Others USB Type-C DP HDMI Auto Select Select the USB Type-C input when you are using the USB Type-C connector. Push to select the USB Type-C input source.
Preset Modes When you select preset modes, you can choose Standard, Comfortview, Movie, Game, Warm, Cool, or Custom color from the list. ∞∞ Standard: Loads the monitor's default color settings. This is the default preset mode. ∞∞ ComfortView: Decreases the level of blue light emitted from the screen to make viewing more comfortable for your eyes.
Press the and buttons to adjust the three colors (R, G, B) values and create your own preset color mode. Dell 24 Monitor Brightness / Contrast Preset Modes Standard Input Source Input Color Format ComfortView Color Reset Color Movie Display Game Menu Warm Cool Personalize Custom Color Others Input Color Format Allows you to set the video input mode to: ∞∞ RGB: Select this option if your monitor is connected to a computer or DVD player using the HDMI cable.
Saturation This feature can adjust the color saturation of the video image. Use or to adjust the saturation from 0 to 100. Press to increase the monochrome appearance of the video image. Reset Color Display Press to increase the colorful appearance of the video image. NOTE: Saturation adjustment is available only when you select Movie and Game mode. Allows your monitor color settings to the factory settings. Use the display to adjust image.
Aspect Ratio Sharpness Adjusts the image ratio to wide 16:9, 4:3 or 5:4 This feature can make the image look sharper or softer. Use or to adjust the sharpness from 0 to 100. Response Time User can select between fast or normal. MST DP Multi Stream Transport, Set to On enables MST(DP out), Set to Off disables MST function. NOTE: When DP/USB-C upstream cable and DP downstream cable is connected, monitor will set MST = On automatically, this action will only be done once after Factory Reset or Display Reset.
Menu Select this option to adjust the settings of the OSD, such as, the languages of the OSD, the amount of time the menu remains on screen and so on.
Personalize Select this option to adjust the settings of the personalization. Dell 24 Monitor Brightness / Contrast Shorout Key 1 Input Source Shorout Key 2 Input Source Color Power Button LED On in On Mode Display USB-A Charging Off in Standby Mode Menu USB-C Charging Off in Off Mode Personalize Reset Personalization Preset Modes Others Shortcut Key 1 User can select one of the following: Preset Modes, Brightness/Contrast, Input Source, Aspect Ratio, Rotation to set the shortcut key 1.
Power Button Allows you to set the power LED indicator On in On LED Mode or Off in On Mode to save energy. Dell 24 Monitor Brightness / Contrast Shorout Key 1 Input Source Shorout Key 2 Color Power Button LED On in On Mode Display USB-A Charging Off in On Mode Menu USB-C Charging Personalize Reset Personalization Others USB-A Charg- Allows you to enable or disable USB-A Charging funcing tion during monitor standby mode.
Others Select this option to adjust the OSD settings, such as the DDC/CI, LCD conditioning, and so on. Dell 24 Monitor Display Info Brightness / Contrast Display Info Input Source DDC/CI Color LCD Conditioning Off Display Firmware 13C114 Menu Service Tag Personalize Reset Others Others Factory Reset On ENERGY STAR® Displays the monitor’s current settings.
Firmware Service Tag Display the version of the firmware about the display. NOTE: For firmware update, see Dell Support site at www.dell.com/support/monitors Display the service tag number of the display. The Service Tag is a unique alphanumeric identifier that allows Dell to identify the product specifications and access warranty information. NOTE: The Service Tag is also printed on a label located at the back of the cover.
Menu and Power button lock Controls user access to adjustments. The default setting of Menu and Power buttons lock is Disable. 1 2 3 4 5 To enter the lock menu: Hold the Exit key (button 4) for 4 seconds to display the lock menu (when Menu and Power buttons unlocked), A lock menu appears and is shown on the bottom right corner of display screen.
Dell 24 Monitor Select Option: There are three levels of lock. 1 Menu Menu Buttons Description When “Menu Buttons” is selected, no user adjustments are allowed. All buttons are locked except Power button. 2 Power Button When “Power Button” is selected, user is now not able to turn off the display via Power button. 3 Menu + Power Buttons When “Menu + Power Buttons” is selected, no user adjustments are allowed and the Power button is locked.
When Menu and Power buttons is in lock state, hold the Exit key (button 4) for 4 seconds to enter the unlock menu. And then choose and apply to the unlock icon buttons lock. to release the Menu and Power OSD warning messages When you adjust the Brightness level for the first time, the following message appears: Dell 24 Monitor Adjusting to this value will increase power consumption above the default level.
When the monitor does not support a particular resolution mode, the following message is displayed: Dell 24 Monitor The current input timing is not supported by the monitor display. Please change your input timing to 2560x1440, 60Hz or any other monitor listed timing as per the monitor specifications. This means that the monitor cannot synchronize with the signal that it is receiving from the computer. See Monitor specifications for the Horizontal and Vertical frequency ranges addressable by this monitor.
Dell P2418HZ Dell 24 Monitor ? No HDMI signal from your device. Press any key on the keyboard or move the mouse to wake it up. If there is no display, press the monitor button again to select the correct input source. P2421DC If HDMI, DP or USB Type-C cable is not connected, a floating dialog box as shown below appears. The monitor will enter Standby Mode after 4 minutes if left at this state. Dell P2418HZ Dell 24 Monitor ? No HDMI Cable The display will go into Standby Mode in 4 minutes. www.dell.
Dell P2418HZ Dell 24 Monitor ? No USB Type-C Cable The display will go into Standby Mode in 4 minutes. www.dell.com/P2421DC P2421DC A message is displayed while the cable supporting DP alternate mode is connected to the monitor under the following conditions: ∞∞ When Auto Select for USB-C is set to Prompt for Multiple Inputs. ∞∞ When the DP cable is connected to the monitor. Dell P2418HZ Dell 24 Monitor Switch to USB-C Video Input Yes No P2421DC The OSD functions only in the normal operation mode.
When the MST function is on and USB-C Prioritization is set to High Resolution, if Factory Reset is selected, the following message appears: Dell 24 Monitor Easy Initial Setup: Select ‘Yes’ to enable the following function(s): Always on USB-C Charging USB-A Charging Yes No When ‘Yes’ is selected, power consumption will increase. When ‘No’ is selected, it will comply with ENERGY STAR requirements. Individual settings of the functions can be changed in the Menu.
Setting up your monitor Setting the maximum resolution To set the maximum resolution for the monitor: In Windows 7, Windows 8, Windows 8.1 and Windows 10: 1. For Windows 8 and Windows 8.1 only, select the Desktop tile to switch to classic desktop. 2. Right-click on the desktop and click Screen Resolution. 3. Click the Dropdown list of the Screen Resolution and select 2560 x 1440. 4. Click OK. If you do not see 2560 x 1440 as an option, you may need to update your graphics driver.
4. Click Advanced Settings. 5. Identify your graphics controller supplier from the description at the top of the window (e.g. NVIDIA, ATI, Intel, and so on). 6. Refer to the graphic card provider website for updated driver (for example, www.ATI.com OR www.AMD.com). 7. After installing the drivers for your graphics adapter, attempt to set the resolution to 2560 x 1440 again.
Using the tilt, swivel, and vertical extension NOTE: These values are applicable to the stand that was shipped with your monitor. To set up with any other stand, see the documentation that shipped with the stand. Tilt, Swivel With the stand attached to the monitor, you can tilt and swivel the monitor for the most comfortable viewing angle. 5° 45° 21° 45° NOTE: The stand is detached when the monitor is shipped from the factory. Vertical Extension NOTE: The stand can be extended vertically up to 130 mm.
130mm Rotating the Monitor Before you rotate the monitor, your monitor should be fully vertically extended (Vertical Extension) and fully tilted up to avoid hitting the bottom edge of the monitor.
90° 90° 90° 90° 60 │ Operating your monitor
NOTE: To use the Display Rotation function (Landscape versus Portrait view) with your Dell computer, you require an updated graphics driver that is not included with this monitor. To download the graphics driver, go to www.dell.com/support and see the Download section for Video Drivers for latest driver updates. NOTE: When in the Portrait View Mode, you may experience performance degradation in graphic-intensive applications (3D Gaming and etc.).
Troubleshooting WARNING: Before you begin any of the procedures in this section, follow the Safety Instructions. Self-Test Your monitor provides a self-test feature that allows you to check if your monitor is functioning properly. If your 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. Disconnect all video cables from the monitor.
Dell P2418HZ Dell 24 Monitor ? No USB Type-C Cable The display will go into Standby Mode in 4 minutes. www.dell.com/P2421DC P2421DC NOTE: This box also appears during normal system operation, if the video cable is disconnected or damaged. 4. Turn Off your monitor and reconnect the video cable; then turn on your computer and the monitor. If your monitor remains dark after you reconnect the cables, check your video controller and computer.
3. Press and hold the Exit key (button 4) for 4 seconds to enter the OSD lock/ unlock menu. Dell 24 Monitor Select Option: + Dell 24 Monitor Select Option: 4. Select the icon to enable the built-in diagnostics. 5. Carefully inspect the screen for abnormalities. 6. Press the Up key (button 1) on the back cover again. The color of the screen changes to grey. 7. Inspect the display for any abnormalties. 8.
Setting USB-C Prioritization when USB-C Charging is set to On in Off Mode If USB-C Charging is set to On in Off Mode, the monitor allows you to specify the USB-C Prioritization settings only when your PC is powered off. 1. Ensure that your PC is powered off. 2. Press any control button other than the power button to display the shortcut menu of Input Source. 3. Use the or button to highlight USB Type-C. Dell 24 Monitor Input Source : Auto USB Type-C DP HDMI 4.
Common problems The following table contains general information about common monitor problems you might encounter and the possible solutions: Common Symptoms Possible Solutions No Video/Power LED off ∞∞ Ensure that the video cable connecting the monitor and the computer is properly connected and secure. ∞∞ Verify that the power outlet is functioning properly using any other electrical equipment. ∞∞ Ensure that the power button is pressed.
Brightness Problems ∞∞ Reset the monitor to Factory Settings (Factory Reset). ∞∞ Adjust brightness & contrast controls via OSD. Geometric Distortion ∞∞ Reset the monitor to Factory Settings (Factory Reset). ∞∞ Adjust horizontal & vertical controls via OSD. Horizontal/Vertical Lines ∞∞ Reset the monitor to Factory Settings (Factory Reset). ∞∞ 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.
Image retention from ∞∞ Set the screen to turn off after a few minutes of screen a static image left idle time. These can be adjusted in Windows Power on the monitor for a Options or Mac Energy Saver setting. long period of time ∞∞ Alternatively, use a dynamically changing screensaver. Video Ghosting or ∞∞ Change the Response Time in the Display OSD to Overshooting Fast or Normal depending on your application and usage.
Product-specific problems Specific Symptoms Possible Solutions Screen image is too ∞∞ Check the Aspect Ratio setting in the Display settings small OSD. ∞∞ Reset the monitor to Factory Settings (Factory Reset). Cannot adjust the ∞∞ Turn Off the monitor, unplug the power cord, plug it back, monitor with the and then turn On the monitor. buttons on the ∞∞ Check if the OSD menu is locked. If yes, press and hold bottom of the panel the menu button for 4 seconds to unlock.
Supre Speed USB 3.0 interface is slow. ∞∞ 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 USB-C upstream cable to your computer. ∞∞ Reconnect the USB peripherals (downstream connector). ∞∞ Reboot the computer. Wireless USB peripherals stop working when a USB 3.0 device is plugged in ∞∞ Increase the distance between the USB 3.0 peripherals and the wireless USB receiver.
Appendix Safety Instructions WARNING: Use of controls, adjustments, or procedures other than those specified in this documentation may result in exposure to shock, electrical hazards, and/or mechanical hazards. For information on safety instructions, see the Safety Environment and Regulatory Information (SERI). FCC notices (U.S. Only) and other regulatory information For FCC notices and other regulatory information, see the regulatory compliance website located at www.dell.com/regulatory_compliance.
Contacting Dell For customers in the United States, call 800-WWW-DELL (800-999-3355). NOTE: If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog. Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To get online Monitor support content: 1. Visit www.dell.com/support/monitors.
