Dell U2421E Users Guide

Dell U2421E Manual

Get Dell U2421E PDF manuals and user guides View all Dell U2421E manuals
Add to My Manuals
Save this manual to your list of manuals

Dell U2421E manual content summary:

  • Dell U2421E | Users Guide - Page 1
    Dell UltraSharp 24 USB-C Hub Monitor - U2421E User's Guide Model: U2421E Regulatory model: U2421Et
  • Dell U2421E | Users Guide - Page 2
    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 . Copyright © 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its
  • Dell U2421E | Users Guide - Page 3
    Contents Safety instructions 5 About your monitor 6 Package contents 6 Product features 7 Identifying parts and controls 8 Front view 8 Back view 9 Bottom view 10 Monitor specifications 11 Resolution specifications 12 Preset display modes 13 DP MST Multi-Stream Transport (MST
  • Dell U2421E | Users Guide - Page 4
    system 47 OSD warning messages 57 Setting the maximum resolution 61 Troubleshooting 62 Self-test 62 Built-in diagnostics 63 Common Problems 64 Product specific problems 65 Universal Serial Bus (USB) specific problems 68 Appendix 70 FCC notices (U.S. only) and other regulatory information
  • Dell U2421E | Users Guide - Page 5
    do not place the monitor inside a car trunk. • Unplug the monitor when it is going to be left unused for an extended period of time. • To avoid electric shock, do not attempt to remove any cover or touch the inside of the monitor. For information on safety instructions, see the Safety, Environmental
  • Dell U2421E | Users Guide - Page 6
    ships with the components shown in the table below. If any component is missing, contact Dell. For more information, see Contact Dell. NOTE: Some components may be optional and may not ship with your monitor. Some features may not be available in certain countries. Display Stand riser Stand base
  • Dell U2421E | Users Guide - Page 7
    Dell U2421E UltraSharp monitor. Results may vary with other test equipment, setups and test patterns. Please retain this Report for your reference as Dell is unable to reproduce it or provide a duplicate. • Quick Setup Guide . • Plug and play capability if supported by your computer. • On-Screen
  • Dell U2421E | Users Guide - Page 8
    Identifying parts and controls Front view Label Description 1 Power LED indicator 1 Use Solid white light indicates the monitor is turned on and functioning normally. Blinking white light indicates the monitor is in Standby Mode. 8 | About your monitor
  • Dell U2421E | Users Guide - Page 9
    . For more information, see Operating the Monitor. 6 Mac address, Barcode, serial Refer to this label if you need to contact Dell number, and Service Tag label for technical support. The Service Tag is a unique alphanumeric identifier that enables Dell service technicians to identify the hardware
  • Dell U2421E | Users Guide - Page 10
    A, 5 V/3 A. NOTE: USB Type-C is not supported on Windows versions that are prior to Windows 10. 6 DP port (out) DP output for MST (multi-stream transport) capable monitor. To enable MST, refer to instruction on section "Connecting the Monitor for DP MST Function". NOTE: Remove the rubber plug
  • Dell U2421E | Users Guide - Page 11
    via RJ45 only after you have connected the USB cable(Type-A to Type-C or Type-C to Type-C) from the computer to the monitor. 12 USB Type-C Port with icon supports 5 V/ 3 A. downstream port Connect your USB device. You can use these ports only after you have connected the USB cable (Type-A to
  • Dell U2421E | Users Guide - Page 12
    2.0 audio line out (3.5 mm jack) • 1 x RJ45 Border width (edge of monitor to active area) Top 6.2 mm Left/Right 6.2 mm Bottom 9.1 mm Adjustability Height adjustable 45° Pivot -90° to 90° Cable management Yes Dell Display Manager (DDM) Easy Arrange Compatibility and other key
  • Dell U2421E | Users Guide - Page 13
    (Horizontal/ Vertical DP MST Multi-Stream Transport (MST) Modes MST Source Monitor 1920 x 1200/60 Hz Maximum number of external monitors that can be supported 1920 x 1200/60 Hz 2 NOTE: Maximum external monitor resolution supported is 1920 x 1200 60 Hz only. USB-C MST Multi-Stream Transport
  • Dell U2421E | Users Guide - Page 14
    differential line Per differential line at 100 ohm impedance • DP/HDMI/USB Type-C signal input support Input voltage/ frequency/current 100-240 VAC / 50 or 60 Hz ± 3 Hz / or completeness is expressed or implied. NOTE: This monitor is ENERGY STAR certified. This product qualifies for ENERGY
  • Dell U2421E | Users Guide - Page 15
    USB Type-C downstream connector x 1 (Port with icon supports 5 V/3 A) • USB 3.2 Gen 1 downstream port connector x 3 (Port with battery icon supports BC 1.2.) Signal cable type Dimensions (with stand) Height 64 in.) 173.0 mm (6.81 in.) 8.6 kg (19.0 lb) 6.1 kg (13.4 lb) About your monitor | 15
  • Dell U2421E | Users Guide - Page 16
    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. Temperature Operating
  • Dell U2421E | Users Guide - Page 17
    (n) GND ML3(p) ML2(n) GND ML2(p) ML1(n) GND ML1(p) ML0(n) GND ML0(p) CONFIG1 CONFIG2 AUX CH (p) GND AUX CH (n) Hot Plug Detect Return DP_PWR About your monitor | 17
  • Dell U2421E | Users Guide - Page 18
    DP port (out) Pin number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 20-pin side of the connected signal cable ML0(p) GND ML0(n) ML1(p) GND ML1(n) ML2(p) GND ML2(n) ML3(p) GND ML3(n) CONFIG1 CONFIG2 AUX CH(p) GND AUX CH(n) Hot Plug Detect Return DP_PWR 18 | About your monitor
  • Dell U2421E | Users Guide - Page 19
    0TMDS CLOCK+ TMDS CLOCK SHIELD TMDS CLOCKCEC Reserved (N.C. on device) DDC CLOCK (SCL) DDC DATA (SDA) DDC/CEC Ground +5 V POWER HOT PLUG DETECT About your monitor | 19
  • Dell U2421E | Users Guide - Page 20
    B11 SSRXp1 B10 SSRXn1 B9 VBUS B8 SBU2 B7 Dn1 B6 Dp1 B5 CC2 B4 VBUS B3 SSTXn2 B2 SSTXp2 B1 GND 20 | About your monitor
  • Dell U2421E | Users Guide - Page 21
    charging capability if the device is BC 1.2 compatible.The USB Type-C downstream port with icon supports fast current charging capability if the device is 5V/3A compatible. NOTE: The monitor's USB ports work only when the monitor is on or in the power save mode. In power save mode, if the USB
  • Dell U2421E | Users Guide - Page 22
    available for your system. This is available for download at www.dell.com/support under the "Driver and download" section. Network (RJ45) data is 1000 Mbps. NOTE: This LAN port is 1000Base-T IEEE 802.3az compliant, supporting Mac Address (Printed on model label) Pass-thru, Wake-on-LAN (WOL) from
  • Dell U2421E | Users Guide - Page 23
    on the port. • Green On - Link is being established. • Off - Link is not established. NOTE: RJ45 cable is non in-box standard accessory. About your monitor | 23
  • Dell U2421E | Users Guide - Page 24
    become fixed in an unchanging state which are hard to see and do not affect the display quality or usability. For more information on LCD Monitor Pixel Policy, see Dell support site at: www.dell.com/pixelguidelines. 24 | About your
  • Dell U2421E | Users Guide - Page 25
    lights, desk lamps, and the curtains or blinds on nearby windows) to minimize reflections and glare on the monitor screen. • Use a chair that provides good lower-back support. • Keep your forearms horizontal with your wrists in a neutral, comfortable position while using the keyboard or mouse
  • Dell U2421E | Users Guide - Page 26
    your desk clear of obstructions and cables or power cords that may interfere with comfortable seating or present a potential trip hazard. monitor screen at or below eye level wrists relaxed and at monitor and keyboard positioned directly in front of the user feet at on the oor 26 | About your
  • Dell U2421E | Users Guide - Page 27
    when lifting or moving it, follow the guidelines mentioned below: • Before moving or lifting the monitor, turn off your computer and the monitor. • Disconnect all cables from the monitor. • Place the monitor in the original box with the original packing materials. • Hold the bottom edge and the
  • Dell U2421E | Users Guide - Page 28
    cable from the electrical outlet. CAUTION: Read and follow the Safety Instructions before cleaning the monitor. For best practices, follow these instructions in the list below while unpacking, cleaning, or handling your monitor: • To clean your anti-static screen, lightly dampen a soft, clean cloth
  • Dell U2421E | Users Guide - Page 29
    Connecting the stand NOTE: The stand riser and stand base are detached when the monitor is shipped from the factory. NOTE: The following instructions are applicable only for the stand that was shipped with your monitor. If you are connecting a stand that you purchased from any other source, follow
  • Dell U2421E | Users Guide - Page 30
    4. Open the protective cover on the monitor to access the VESA slot on the monitor. 5. Slide the tabs on the stand riser into the slots on the display back cover and lower the stand assembly to snap it into place. 30 | Setting up the monitor
  • Dell U2421E | Users Guide - Page 31
    6. Hold the stand riser and lift the monitor carefully, then place it on a flat surface. NOTE: Hold the stand riser firmly when lifting the monitor to avoid any accidental damage. 7. Lift the protective cover from the monitor. Setting up the monitor | 31
  • Dell U2421E | Users Guide - Page 32
    connecting a stand that you purchased from any other source, follow the set up instructions that were included with the stand. Tilt, swivel and vertical extension With the stand attached to the monitor, you can tilt the monitor for the most comfortable viewing angle. 5° 45° 150 mm 45° 21° NOTE
  • Dell U2421E | Users Guide - Page 33
    install the latest graphics driver. To download, go to www.dell.com/support/drivers and search for the appropriate driver. NOTE: When the display settings on your computer. NOTE: If you are using the monitor with a non-Dell computer, go to the graphics card manufacturer's website or your computer
  • Dell U2421E | Users Guide - Page 34
    4. Select the correct input source from the OSD Menu on your monitor and then turn on your computer. NOTE: U2421E default setting is DisplayPort 1.4. A DisplayPort 1.1 Graphic card may not display normally. Please refer to "product specific problems - No image when using DP connection to the PC" to
  • Dell U2421E | Users Guide - Page 35
    Connecting the DP cable DP DP Connecting the monitor for DP Multi-Stream Transport (MST) function DP DP DP out DP NOTE: Supports the DP MST feature. To make use of this feature, your PC Graphics Card must be certified to at least DP1.2 with MST option. NOTE:
  • Dell U2421E | Users Guide - Page 36
    USB Type-C or DisplayPort 1.4, alternatively. • Supports USB Power Delivery (PD), with profiles up to 90 W. NOTE: Regardless of the power requirement/actual power consumption of your laptop, or the remaining power runtime in your battery, the Dell U2421E monitor is designed to supply power delivery
  • Dell U2421E | Users Guide - Page 37
    -C NOTE: The maximum number of supported U2421E via MST is subjected to the bandwith of the USB-C source. Please refer to "product specific problems - No image when using USB Type-C MST". NOTE: Remove the rubber plug when using DP out connector. Connecting the monitor for RJ45 Cable (Optional) USB
  • Dell U2421E | Users Guide - Page 38
    lock slot) For more information on using the Kensington lock (purchased separately), see the documentation that is shipped with the lock. Secure your monitor to a table using the Kensington security lock. NOTE: The image is for the purpose of illustration only. Appearance of the lock may vary
  • Dell U2421E | Users Guide - Page 39
    : To prevent scratches on the LCD screen when removing the stand, ensure that the monitor is placed on a soft, clean surface. NOTE: The following instructions are applicable only for the stand that was shipped with your monitor. If you are connecting a stand that you purchased from any other source
  • Dell U2421E | Users Guide - Page 40
    screwdriver to remove the four screws securing the plastic cover. 4. Attach the mounting bracket from the wall mounting kit to the monitor. 5. Mount the monitor on the wall as instructed in the documentation that shipped with the wall-mounting kit. NOTE: For use only with UL or CSA or GS-listed
  • Dell U2421E | Users Guide - Page 41
    . Using the joystick control Use the joystick control on the rear of the monitor to make OSD adjustments. 1. Press the joystick button to launch the OSD main menu. 2. Move between the menu items. • Increases (up) or decreases (down) the parameters of selected menu item. Operating the monitor | 41
  • Dell U2421E | Users Guide - Page 42
    Using the rear-panel controls Use the joystick control on the rear of the monitor to adjust the display settings. As you use the button to adjust the settings, an OSD shows the numeric 7 Use this button to go back to the main menu or exit the OSD main menu. Exit 42 | Operating the monitor
  • Dell U2421E | Users Guide - Page 43
    the following options. 2. The following message appears. 3. Select Yes to lock buttons. Once locked, pressing any control button will display the lock icon . Operating the monitor | 43
  • Dell U2421E | Users Guide - Page 44
    option to lock OSD menu function. Menu Button lock 2 Use this option to lock power button. This will prevent the user to turn off the monitor using the Power Button lock power button. 3 Use this option to lock OSD menu and power button to turn off the
  • Dell U2421E | Users Guide - Page 45
    buttons. Options 1 Description Use this option to unlock OSD menu function. Menu Button unlock 2 Use this option to unlock power button to turn off the monitor. Power Button unlock 3 Use this option to unlock OSD menu and power button to turn off the
  • Dell U2421E | Users Guide - Page 46
    Front‑panel button Use the buttons on the front of the monitor to adjust the image settings. Front Panel 1 Description Use the Up (increase) and Down (decrease) buttons to to confirm your selection. Next 4 Use the Tick button to confirm your selection. Tick 46 | Operating the monitor
  • Dell U2421E | Users Guide - Page 47
    and Move the joystick down to decrease contrast (between 0 and 100). The Contrast function adjusts the degree of difference between darkness and lightness on the monitor screen. Operating the
  • Dell U2421E | Users Guide - Page 48
    when you are using the HDMI connector. Press the joystick button to confirm the selection. Auto Select Turn on the function to allow the monitor to automatically scan for available input sources. Press the joystick button to confirm the selection. Auto Select for USB-C Allows you to set Auto
  • Dell U2421E | Users Guide - Page 49
    or Custom Color from the list. • Standard: Default Color setting, This monitor uses a low blue light panel, and is certified by TUV to reduce blue tint with slider set at 10,000K. • Custom Color: Allows you to manually adjust the color settings. Press the joystick left and right buttons to adjust
  • Dell U2421E | Users Guide - Page 50
    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 USB Type-C, DP, HDMI cable. • YPbPr: Select this option if your DVD player supports only YPbPr output. Hue Saturation Reset Color Use joystick up or down to adjust
  • Dell U2421E | Users Guide - Page 51
    to ON enables MST(DP out), Set to OFF disables MST function. NOTE: When DP/USB Type-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. Resets all settings under the Display menu
  • Dell U2421E | Users Guide - Page 52
    the OSD remains active after you press a button. Move the joystick to adjust the slider in 1-second increments, from 5 to 60 seconds. 52 | Operating the monitor
  • Dell U2421E | Users Guide - Page 53
    locked, you can prevent people from accessing the controls. It also prevents accidental activation in multiple monitors side-by-side setup. Reset Menu • Menu Buttons: Through OSD to lock the Menu Resets all settings under the Reset menu to the factory defaults. Operating the monitor | 53
  • Dell U2421E | Users Guide - Page 54
    power light to save energy. Allows you to enable or disable USB-C Charging 90 W charging function during monitor power off mode. Allows you to enable or disable Other USB Charging function during monitor Standby mode. Resets all settings under the Personalize menu to the factory preset values. 54
  • Dell U2421E | Users Guide - Page 55
    settings such as the DDC/CI, LCD conditioning, and so on. Display Info DDC/CI Displays the monitor's current settings. DDC/CI (Display Data Channel/Command Interface) allows your monitor parameters (brightness, color balance, and etc.) to be adjustable via the software on your computer. You can
  • Dell U2421E | Users Guide - Page 56
    Others Factory Reset Displays the firmware version of your monitor. Displays the Service Tag. 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
  • Dell U2421E | Users Guide - Page 57
    OSD warning messages When the monitor does not support a particular resolution mode, you can see the following message: 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
  • Dell U2421E | Users Guide - Page 58
    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 USB-C cable is connected to the monitor. Select OSD items of Factory Reset in Other feature,
  • Dell U2421E | Users Guide - Page 59
    message will pop-up again. • The power warning message will appear again only when the user does a Factory Reset from the OSD menu. Operating the monitor | 59
  • Dell U2421E | Users Guide - Page 60
    If either USB Type-C, DP, HDMI input is selected and the corresponding cable is not connected, a floating dialog box as shown below appears. or or See Troubleshooting for more information. 60 | Operating the monitor
  • Dell U2421E | Users Guide - Page 61
    Setting the maximum resolution To set the maximum resolution for the monitor: In Windows 7, Windows 8 or Windows 8.1: 1. For the following procedures: If you have a Dell desktop or portable computer: • Go to http://www.dell.com/support, enter your service tag, and download the latest driver for your
  • Dell U2421E | Users Guide - Page 62
    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 whether your monitor is functioning properly. If your monitor and computer are properly connected but the
  • Dell U2421E | Users Guide - Page 63
    problem with your monitor, test is complete when a text screen is displayed. To exit, toggle the joystick control again. If you do not detect any screen abnormalities upon using the built-in diagnostic tool, the monitor is functioning properly. Check the video card and computer. Troubleshooting
  • Dell U2421E | Users Guide - Page 64
    monitor self-test feature Dell Monitor Quality and PixelPolicy, see Dell Support site at: www.dell.com/pixelguidelines. Picture too dim • Reset the monitor to factory settings. or too bright • Adjust brightness and contrast controls via OSD. Visible signs of • Do not perform any troubleshooting
  • Dell U2421E | Users Guide - Page 65
    properly & off and is secure. • Reset the monitor to factory settings. • Perform monitor self-test feature check to determine if the intermittent problem occurs in self-test mode. Missing Color Picture missing color • Perform monitor self-test. • Ensure that the video cable connecting the
  • Dell U2421E | Users Guide - Page 66
    standard (DP 1.1a or DP 1.4) is your Graphics Card certified to. Download and install the latest graphics card driver. • Some DP 1.1a graphics card cannot support DP 1.4 monitors. Go to OSD menu, under Input Source selection, press and hold DP select joystick key for 8 sec to change the
  • Dell U2421E | Users Guide - Page 67
    Problem power consumption of device is over 90 W. • Ensure that you use only Dell approved adapter or the adapter that comes with the product. • Ensure that the • Some DP 1.1a graphics card cannot support DP 1.4 monitors. Go to OSD menu, under Input Source selection, press and hold Troubleshooting | 67
  • Dell U2421E | Users Guide - Page 68
    the Computer and unplug the Type-C cable and power cord of the monitor. Then, power on the computer, plug in the monitor power cord and Type-C cable. Universal Serial Bus (USB) specific problems Specific Symptoms What You Experience Possible Solutions USB interface is USB peripherals • Check
  • Dell U2421E | Users Guide - Page 69
    -extender cable to position the wireless USB receiver as far away as possible from the USB 3.0 port. Refer to input source and USB pairing table. Troubleshooting | 69
  • Dell U2421E | Users Guide - Page 70
    may not be available in your area. To get online Monitor support content: See www.dell.com/support/monitors. To contact Dell for sales, technical support, or customer service issues: 1. Go to www.dell.com/support. 2. Verify your country or region in the Choose A Country/Region drop-down menu
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
Model: U2421E
Regulatory model: U2421Et
Dell UltraSharp 24
USB-C Hub Monitor - U2421E
User’s Guide