Dell P3421W Monitor User’s Guide Model: P3421W Regulatory model: P3421Wb
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 . . . . . . . . . . . . . . . . . . . . . . 9 Front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Back view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning your monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Setting up the monitor . . . . . . . . . . . . . . . . . . . . . . 25 Attaching the stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Connecting your monitor . . . . . . . . . . . . . . . . . . . . . . . . . 28 Connecting the DisplayPort (DisplayPort to DisplayPort) cable. . 29 Connecting the HDMI cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Connecting the USB Type-C cable .
Built-in diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Common problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product specific problems . . . . . . . . . . . . . . . . . . . . . . . . Universal Serial Bus (USB) specific problems . . . . . . . . . 67 69 72 73 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 FCC notices (U.S. only) and other regulatory information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
About your monitor Package contents Your monitor ships with the components shown in the table below. If any component is missing, contact Dell technical support. For more information, see Contact Dell. NOTE: Some items may be optional and may not ship with your monitor. Some features may not be available in certain countries. NOTE: If you are attaching a stand that you purchased from any other source, follow the set up instructions that were included with the stand.
Power cable (varies by country) DisplayPort cable (DisplayPort to DisplayPort) HDMI cable USB Type-C cable (USB 3.2 Gen1 (5 Gbps)) USB 3.
Product features The Dell P3421W monitor has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD) and LED backlight. The monitor features include: • 86.72 cm (34.14 in.) viewable area (measured diagonally). 3440 x 1440 (21:9) resolution, plus full-screen support for lower resolutions. • Wide viewing angle to allow viewing from a sitting or standing position. • Color gamut of 99% sRGB. • Digital connectivity with DisplayPort, USB Type-C and HDMI.
Identifying parts and controls Front view Label 1 Description Power LED indicator Solid white light indicates that the monitor is turned on and functioning normally. Blinking white light indicates that the monitor is in Standby Mode.
Back view Back view with monitor stand Label Description Use 1 VESA mounting holes (100 mm x 100 mm - behind attached VESA Cover) Wall mount monitor using VESAcompatible wall mount kit (100 mm x 100 mm). 2 Regulatory label Lists the regulatory approvals. 3 Stand release button Releases stand from the monitor. 4 Barcode, serial number, and Service Tag label Refer to this label if you need to contact Dell for technical support. 5 Power On/Off button To turn the monitor on or off.
Bottom view Bottom view without monitor stand Label Description Use 1 Security lock slot Secures the monitor with security lock (security lock not included). 2 Power connector Connect the power cable (shipped with your monitor). 3 HDMI port Connect your computer with the HDMI cable (shipped with your monitor). 4 DisplayPort Connect your computer with the DisplayPort cable (shipped with your monitor).
7 SuperSpeed USB1 5 Gbps (USB 3.2 Gen1) upstream port1 Connect the USB cable that came with your monitor to the computer. Once this cable is connected, you can use the USB connectors on the monitor. 8 USB 2.0 downstream port (2) Connect your USB 2.0 device.* SuperSpeed USB 5 Gbps (USB 3.2 Gen1) downstream port (2) Connect your USB 3.2 Gen1 (5 Gbps) device.
Viewing angle 178° (vertical) typical 178° (horizontal) typical Luminance output 300 cd/m² (typical) Contrast ratio 1000 to 1 (typical) Faceplate coating Anti-Glare with 3H hardness Backlight White LED edgelight system Response time 8 ms (Normal) 5 ms (Fast) Curvature 3800R (typical) Color depth 1.07 billion colors NOTE: Video output from the USB-C port at maximum resolution 3440 x 1440 at 60 Hz is limited to 16.7 Million colors.
Dell Display Manager compatibility Easy Arrange and other key features Security Security lock slot (cable lock sold separately) *DisplayPort and USB Type-C (Alternate mode with DisplayPort 1.2): HBR2 is supported.
VESA, 1152 x 864 67.5 75.0 108.0 +/+ VESA, 1280 x 1024 64.0 60.0 108.0 +/+ VESA, 1280 x 1024 80.0 75.0 135.0 +/+ VESA, 1600 x 1200 75.0 60.0 162.0 +/+ VESA, 1920 x 1080 67.5 60.0 148.5 +/+ VESA, 2560 x 1440 88.8 60.0 241.5 +/- VESA, 3440 x 1440 88.8 60.0 319.8 +/- Electrical specifications Model P3421W Video input signals HDMI 2.0/DisplayPort 1.
This document is informational only and reflects laboratory performance. Your product may perform differently, depending on the software, components and peripherals you ordered and shall have no obligation to update such information. Accordingly, the customer should not rely upon this information in making decisions about electrical tolerances or otherwise. No warranty as to accuracy or completeness is expressed or implied. NOTE: This monitor is ENERGY STAR certified.
Stand dimensions Height (extended) 433.3 mm (17.06 in.) Height (compressed) 386.5 mm (15.22 in.) Width 307.0 mm (12.09 in.) Depth 237.4 mm (9.35 in.) Base 307.0 mm x 235.0 mm (12.09 in. x 9.25 in.) Weight Weight with packaging 14.9 kg (32.80 lb) Weight with stand assembly and cables 10.8 kg (23.89 lb) Weight without stand assembly (For wall mount or VESA mount considerations - no cables) 6.7 kg (14.85 lb) Weight of stand assembly 3.6 kg (7.
Environmental characteristics Model P3421W Compliant standards • ENERGY STAR certified monitor • EPEAT registered where applicable. EPEAT registration varies by country. See www.epeat.net for registration status by country.
Pin assignments DisplayPort connector Pin number 20-pin side of the connected signal cable 1 ML3 (n) 2 GND 3 ML3 (p) 4 ML2 (n) 5 GND 6 ML2 (p) 7 ML1 (n) 8 GND 9 ML1 (p) 10 ML0 (n) 11 GND 12 ML0 (p) 13 GND 14 GND 15 AUX (p) 16 GND 17 AUX (n) 18 Hot Plug Detect 19 Re-PWR 20 +3.
HDMI connector Pin number 19-pin side of the connected signal cable 1 TMDS DATA 2+ 2 TMDS DATA 2 SHIELD 3 TMDS DATA 2- 4 TMDS DATA 1+ 5 TMDS DATA 1 SHIELD 6 TMDS DATA 1- 7 TMDS DATA 0+ 8 TMDS DATA 0 SHIELD 9 TMDS DATA 0- 10 TMDS CLOCK+ 11 TMDS CLOCK SHIELD 12 TMDS CLOCK- 13 CEC 14 Reserved (N.C.
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 that 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 the monitor.
USB 3.2 Gen1 (5 Gbps) upstream connector Pin number 9-pin side of the connector 1 VCC 2 D- 3 D+ 4 GND 5 SSTX- 6 SSTX+ 7 GND 8 SSRX- 9 SSRX+ USB 3.
USB 2.
USB ports • 1 USB Type-C upstream - bottom • 1 USB Type-B upstream - bottom • 4 USB Type-A downstream - bottom NOTE: USB 3.2 Gen1 (5 Gbps) functionality requires a USB 3.2 Gen1capable computer. NOTE: The USB ports on the monitor work only when the monitor is turned On or in 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.
Setting up the monitor Attaching the stand NOTE: The stand is not installed at the factory when shipped. NOTE: The following instructions are applicable only for attaching the stand that was shipped with your monitor. If you are attaching a stand that you purchased from any other source, follow the set up instructions that were included with the stand. 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.
6. Lift the cover, as shown, to access the VESA area for stand assembly. 7. Attach the stand assembly to the display. a. Fit the two tabs on the upper part of the stand to the groove on the back of the display. b. Press the stand down till it snaps into place.
8. Place the monitor upright. NOTE: Lift the monitor carefully to prevent it from slipping or falling. 9. Remove the cover from the monitor.
Connecting your monitor WARNING: Before you begin any of the procedures in this section, follow the Safety instructions. NOTE: Dell monitors are designed to work optimally with Dell supplied inbox cables. Dell does not guarantee the video quality and performance when using non-Dell cables. NOTE: Route the cables through the cable-management slot before connecting them. NOTE: Do not connect all cables to the computer at the same time. NOTE: The graphics are used for the purpose of illustration only.
Connecting the DisplayPort (DisplayPort to DisplayPort) cable NOTE: The default out of factory setting is DP1.2. If the monitor fails to show any content after the DisplayPort cable is connected, follow the procedures below to change the settings to DP1.1: • Press the joystick to launch the Menu Launcher. • Move the joystick up to select and activate the OSD main menu. • Toggle the joystick to highlight Input Source, then press the joystick button to enter the submenu.
Connecting the HDMI cable NOTE: The default out of factory setting is HDMI 2.0. If the monitor fails to show any content after the HDMI cable is connected, follow the procedures below to change the settings from HDMI 2.0 to HDMI 1.4: • Press the joystick to launch the Menu Launcher. • Move the joystick up to select and activate the OSD main menu. • Toggle the joystick to highlight Input Source, then press the joystick to enter the submenu. • Toggle the joystick to highlight HDMI.
Connecting the USB Type-C cable NOTE: Use the USB Type-C cable shipped with monitor only. • This port supports DisplayPort Alternate Mode (DP1.2 standard only). • The USB Type-C power delivery compliant port (PD Version 3.0) delivers up to 65 W of power. • If your notebook requires more than 65 W to operate and the battery is drained, it may not be powered up or charged with the USB PD port of this monitor. Connecting the USB 3.
3. Plug the power cables for your computer(s) and monitor into a nearby outlet. a. Connect one computer b. Connect two computers *When connecting two computers to the monitor, configure the USB settings from the OSD menu to share a single set of keyboard and mouse connected to the monitor between two computers. See USB and Setting the KVM switch for details. 4. Turn On the monitor and the computer(s). If your monitor displays an image, installation is complete.
Organizing your cables After attaching all necessary cables to your monitor and computer, (See Connecting your monitor for cable attachment,) organize all cables as shown above. Removing the monitor stand NOTE: 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 removing the stand that was shipped with your monitor.
VESA wall mounting (optional) (Screw dimension: M4 x 10 mm). Refer to the instructions that come with the VESA-compatible wall mounting kit. 1. Place the monitor panel on a soft cloth or cushion on a stable flat table. 2. Remove the stand. (See Removing the monitor stand) 3. Use a Phillips crosshead 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.
Operating the monitor Power on the monitor Press the Power button to turn On the monitor. Using the joystick control Use the joystick control on the rear of the monitor to make On-Screen Display (OSD) adjustments. 1. Press the joystick to launch the Menu Launcher. 2. Move the joystick up/down/left/right to toggle between options. 3. Press the joystick again to confirm the selection. Joystick Description • When there is no OSD on the screen, press the joystick to launch the Menu Launcher.
• For 2-way (right and left) directional navigation. • Move right to enter the submenu. • Move left to exit from the submenu. • For 2-way (up and down) directional navigation. • Toggles between the menu items. • Increases (up) or decreases (down) the parameters of selected menu item.
When you move the joystick to the left or right to toggle between the shortcut functions, the selected item will be highlighted and shifted to the center position. Press the joystick to enter its submenu. 2 • Input Source: To choose an input source from the list of video signals that may be connected to your monitor. Shortcut functions • Preset Modes: To choose a preferred color mode from the list of preset modes. • Brightness/Contrast: To access the adjustment sliders of brightness and contrast.
Accessing the menu system NOTE: After you change the settings, press the joystick to save the changes before you proceed to another menu or exit the OSD menu. Icon Menu and Submenus Description Brightness/ Contrast Use this menu to activate Brightness/Contrast adjustment. Brightness Brightness adjusts the luminance of the backlight. Move the joystick up to increase the brightness level or move the joystick down to decrease the brightness level (min. 0 / max. 100).
Input Source USB-C 65W DP HDMI Auto Select Use the Input Source menu to select between the different video signals that may be connected to your monitor. Select USB-C 65W when you are using the USB Type-C connector. Press the joystick to confirm the selection. Select DP when you are using the DisplayPort (DP) connector. Press the joystick to confirm the selection. Select HDMI when you are using the HDMI connector. Press the joystick to confirm the selection.
Auto Select for USB-C Allows you to set Auto Select for USB-C to: • Prompt for Multiple Inputs: Always displays the “Switch to USB-C Video Input” message for you to choose whether to switch or not. • Yes: Always switches to USB-C video input (without asking) when the USB Type-C cable is connected. • No: Never automatically switches to USB-C video input when the USB Type-C cable is connected. Press the joystick to confirm the selection. NOTE: The option is available only when Auto Select is on.
Color Preset Modes Use Color to adjust the color setting mode. Allows you to choose from the list of preset color modes. Press the joystick to confirm the selection. • 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.
Preset Modes WARNING: The possible long-term effects of blue light emission from the monitor may cause personal injury such as digital eye strain, eye fatigue and damage to the eyes. Using monitor for extended periods of time may also cause pain in parts of body such as neck, arm, back and shoulder. To reduce the risk of eye strain and neck/arm/ back/shoulder pain from using the monitor for long periods of time, we suggest you to: 1. Set the distance of the screen between 20 to 28 in.
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 media player) using the USB Type-C, DisplayPort, or HDMI cable. • YPbPr: Select this option if your media player supports only YPbPr output. Press the joystick to confirm the selection. Hue This feature can shift the color of the video image to green or purple. This is used to adjust the desired flesh tone color.
Display Use the Display menu to adjust images. Aspect Ratio Adjusts the image ratio to Wide 21:9, 4:3, or 5:4. Sharpness This feature can make the image look sharper or softer. Move the joystick to adjust the sharpness level from '0' to '100'. Response Time Reset Display Allows you to set the Response Time to Normal or Fast. Resets all display settings to the factory preset values.
PIP/PBP This function brings up a window displaying image from another input source. Press the joystick to confirm the selection. Main Window Sub-Window USB Type-C DP HDMI USB Type-C DP HDMI X X NOTE: The images under PBP mode will be displayed at the center of the split windows.
PIP/PBP Mode Allows you to choose a PBP or PIP mode from the preset list, which provides different sizes and positions of the sub-window. The options are shown in graphic format, giving a quick understanding of various layout settings, The default setting is Off. PIP/PBP (Sub) Select between the different video signals that may be connected to your monitor for the PIP/PBP subwindow. Press the joystick to confirm the selection. NOTE: The option is available only when the PIP/ PBP mode is enabled.
USB Switch Select to switch between the USB upstream sources in PIP/PBP mode. NOTE: The option is available only when the PIP/ PBP mode is enabled. Video Swap Select to swap videos between main window and sub-window in PIP/PBP mode. Press the joystick to confirm the selection. NOTE: The option is available only when the PIP/ PBP mode is enabled. Contrast (Sub) Select to adjust the contrast level of the picture in PIP/PBP mode. Move the joystick to adjust the contrast level from '0' to '100'.
USB Allows you to assign the USB upstream port for the input signals (DP or HDMI), thus the monitor's USB downstream port (e.g. keyboard and mouse) can be used by the current input signals when you connect a computer to the upstream port. See also Setting the KVM switch for details. Press the joystick to confirm the selection. When you use only one upstream port, the connected upstream port is active.
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. Language Sets the OSD display to one of the eight languages (English, Spanish, French, German, Brazilian Portuguese, Russian, Simplified Chinese, or Japanese). Transparency Select this option to change the menu transparency by moving the joystick (min. 0 / max. 100).
Lock With the control buttons on the monitor locked, you can prevent people from accessing the controls. It also prevents accidental activation in multiple monitors side-by-side setup. • Menu Buttons: All joystick functions are locked and not accessible by the user. • Power Button: Only the Power button is locked and not accessible by the user. • Menu + Power Buttons: Both the joystick & Power button are locked and not accessible by the user. The default setting is Disable.
Personalize Shortcut Key 1 Shortcut Key 3 Allows you to choose a feature from Preset Modes, Brightness/Contrast, Input Source, Aspect Ratio, PIP/PBP Mode, USB Switch, or Display Info and set it as a shortcut key. Power Button LED Allows you to set the power LED indicator on or off to save energy. Shortcut Key 2 USB-C Charging 65W The default setting is Off in Off Mode.
Fast Wakeup The default setting is Off. Selecting On may prevent the monitor from going into Standby mode. Pressing the joystick may also wake up the monitor after it goes into Standby mode. Reset Resets all settings under the Personalize menu to Personalization the factory preset values. Others Display Info Select this option to adjust the OSD settings, such as DDC/CI, LCD Conditioning, and so on. Displays the monitor's current settings.
DDC/CI DDC/CI (Display Data Channel/Command Interface) allows you to adjust the monitor settings using software on your computer. You can disable this feature by selecting Off. Enable this feature for best user experience and optimum performance of your monitor. LCD Conditioning Firmware Helps reduce minor cases of image retention. Depending on the degree of image retention, the program may take some time to run. You can enable this feature by selecting On.
Service Tag Displays the service tag of your monitor. This string is required when you look for phone support, check your warranty status, update drivers on Dell's website, etc. Reset Others Resets all settings under the Others menu to the factory preset values. Factory Reset Restore all preset values to the factory default settings. These are also the settings for ENERGY STAR® tests.
OSD warning message When the monitor does not support a particular resolution mode, you will 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 addressable by this monitor. Recommended mode is 3440 x 1440.
When you change the default setting of power saving features for the first time, 65W, Other USB Charging, or Fast Wakeup, the such as USB-C Charging following message appears: NOTE: If you select Yes for either of the features mentioned above, the message will not appear next time when you intend to change the settings of these features. When you perform a factory reset, the message will appear again.
The OSD functions only in the normal operation mode. If you press the joystick during the Standby mode, the following message will appear depending on the selected input: Activate the computer and the monitor to gain access to the OSD. NOTE: The message may be slightly different according to the connected input signal.
When Factory Reset is selected, the following message appears: When Yes is selected, the following message appears. See Troubleshooting for more information.
Setting the maximum resolution To set the maximum resolution for the monitor: In Windows® 7, Windows® 8, and Windows® 8.1: 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 3440 x 1440. 4. Click OK. In Windows® 10: 1. Right-click on the desktop and click Display settings. 2. Click Advanced display settings. 3.
Setting the KVM switch The built-in KVM switch allows you to control up to 2 computers from a single set of keyboard and mouse connected to the monitor. a. When connecting HDMI + USB-B to computer 1 and DP + USB-C to computer 2: NOTE: The USB Type-C connection currently supports only data transfer. Make sure USB for HDMI is assigned to USB-B 65W.
b. When connecting HDMI + USB-B to computer 1 and USB-C to computer 2: NOTE: The USB Type-C connection currently supports video and data transfer. Make sure USB for HDMI is assigned to USB-B . NOTE: As the USB Type-C port supports the DisplayPort Alternate Mode, there is no need to set USB for USB-C. NOTE: When connecting to different video input sources not shown above, follow the same method to make correct settings for USB to pair the ports.
Setting the Auto KVM You can follow below instruction to set up Auto KVM for your monitor: 1. Ensure that PIP/PBP Mode is Off. 2. Ensure that Auto Select is On and Auto Select for USB-C is Yes.
3. Ensure that the USB ports and the video inputs are paired accordingly. NOTE: For USB Type-C connection, there is no further setting required.
Using the tilt, swivel, and vertical extension NOTE: The following instructions are applicable only for attaching the stand that was shipped with your monitor. If you are attaching a stand that you purchased from any other source, follow the set up instructions that were included 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. NOTE: The stand is not installed at the factory when shipped.
Slant adjust With the stand attached to the monitor, you can adjust the monitor to your desired angle with the slant adjust feature.
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 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 computer. 3. Turn on the monitor.
Built-in diagnostics Your monitor has a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing is an inherent problem with your monitor, or with your computer and video card. To run the built-in diagnostics: 1. Ensure that the screen is clean (no dust particles on the surface of the screen). 2. Move and hold the joystick up/down/left/right for about 4 seconds until a pop-up menu appears.
3. Move the joystick to highlight the Diagnostic icon joystick to confirm. A gray test pattern appears. and then press the 4. Carefully inspect the screen for abnormalities. 5. Press the joystick to change the test patterns. 6. Repeat steps 4 and 5 to inspect the display in red, green, blue, black, white, and text screens. 7. Press the joystick to end the diagnostic program.
Common problems The following table contains general information about common monitor problems you might encounter and the possible solutions: Common symptoms No Video/Power LED off What you experience No picture Possible solutions • 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 fully.
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. • For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at: www.dell.com/ pixelguidelines. Stuck-on Pixels LCD screen has bright spots • Cycle power On-Off. • Pixel that is permanently off is a natural defect that can occur in LCD technology.
Synchronization Problems Screen is scrambled or appears torn • Reset the monitor to factory settings. • 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 safe mode. Safety Related Issues Visible signs of smoke or sparks • Do not perform any troubleshooting steps. • Contact Dell immediately.
Image retention from a static image left on the monitor for a long period of time Faint shadow from the static image displayed appears on the screen • Set the screen to turn off after a few minutes of screen idle time. These can be adjusted in Windows Power Options or Mac Energy Saver setting. • Alternatively, use a dynamically changing screensaver.
No video at HDMI/ When connected to • Unplug the HDMI/DisplayPort/USB DisplayPort/USB some dongle/ Type-C cable from dongle/docking docking device at Type-C port device, then plug the docking HDMI/ the port, there is no DisplayPort/USB Type-C cable to the video when notebook.
SuperSpeed USB 5 Gbps (USB 3.2 Gen1) interface is slow SuperSpeed USB 5 Gbps (USB 3.2 Gen1) peripherals working slowly or not working at all • Check that your computer is SuperSpeed USB 5 Gbps (USB 3.2 Gen1)-compatible. • Some computers have USB 3.2, USB 2.0, and USB 1.1 ports. Ensure that the correct USB port is used. • Reconnect the upstream cable to your computer. • Reconnect the USB peripherals (downstream connector). • Reboot the computer. Wireless USB peripherals stop working when a USB 3.
Appendix WARNING: 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 Safety, Environmental, 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.
