Dell U3821DWb User Manual Download Page 5

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Built-in diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Common problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Product specific problems . . . . . . . . . . . . . . . . . . . . . . . . 77

Universal Serial Bus (USB) specific problems . . . . . . . . . 79

Speakers Specific Problems . . . . . . . . . . . . . . . . . . . . . . 80

Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

FCC notices (U.S. only) and other regulatory

information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Contact Dell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

EU product database for energy label and product
information sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Summary of Contents for U3821DWb

Page 1: ...Dell UltraSharp 38 Curved USB C Hub Monitor U3821DW User s Guide Model U3821DW Regulatory model U3821DWb ...

Page 2: ...r loss of data if instructions are not followed WARNING A WARNING indicates a potential for property damage personal injury or death Copyright 2021 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 2021 01 Rev A00 ...

Page 3: ...lay modes 15 Electrical specifications 16 Physical characteristics 17 Environmental characteristics 18 Pin assignments 19 Plug and play capability 21 Universal Serial Bus USB interface 21 Super speed USB 5Gbps USB3 2 Gen1 21 USB Type C 21 USB 3 2 upstream connector 22 USB 3 2 downstream connector 22 USB Type C connector 23 USB ports 23 RJ45 connector 24 Supported OS 25 LCD monitor quality and pixe...

Page 4: ...35 Organizing your cables 35 Removing the monitor stand 36 VESA wall mounting optional 37 Operating the monitor 38 Power on the monitor 38 Using the joystick control 38 Using the On Screen Display OSD menu 39 Accessing the Menu Launcher 39 Using the navigation keys 40 Accessing the menu system 41 OSD warning message 59 Setting the maximum resolution 64 Setting the KVM switch 65 Setting the Auto KV...

Page 5: ...t specific problems 77 Universal Serial Bus USB specific problems 79 Speakers Specific Problems 80 Appendix 81 FCC notices U S only and other regulatory information 81 Contact Dell 81 EU product database for energy label and product information sheet 81 ...

Page 6: ...ct 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 setup instructions that were included with the stand Display Stand riser Stand base ...

Page 7: ...DisplayPort cable DisplayPort to DisplayPort HDMI cable USB Type C cable Super speed USB 5Gbps USB 3 2 Gen1 upstream cable enables the USB ports on the monitor Quick Setup Guide Factory calibration report Safety Environmental and Regulatory Information ...

Page 8: ... experience Removable stand and Video Electronics Standards Association VESA 100 mm mounting holes for flexible mounting solutions Equipped with 1 USB Type C upstream port 1 USB Type C downstream port 1 super speed USB 5Gbps USB 3 2 Gen1 Type B upstream port 1 super speed USB 5Gbps USB 3 2 Gen1 Type A downstream charging port and 3 super speed USB 5Gbps USB 3 2 Gen1 Type A downstream ports USB C a...

Page 9: ...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 Label Description 1 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 ...

Page 10: ...ory 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 6 Joystick Use to control the OSD menu For more Information see Operating the monitor 7 Cable management slot Use to organize cables by ...

Page 11: ...nitor using a M3 x 6 mm screw screw not included 5 DisplayPort Connect your computer with the DisplayPort cable shipped with your monitor 6 USB Type C upstream port Connect the USB Type C cable that came with your monitor to the computer or mobile device This port supports USB Power Delivery Data and DisplayPort video signal The super speed USB 5Gbps USB 3 2 Gen1 Type C port supports Alternate Mod...

Page 12: ...To use these ports you must connect the USB cable shipped with your monitor to the USB upstream port on the monitor and to your computer 10 RJ45 port Supports Ethernet connection 10 100 1000 Mbps 11 Super speed USB 5Gbps USB 3 2 Gen1 Type A downstream port with Power Charging Connect your USB device or charge your device NOTE To use this port you must connect the USB Type C cable or USB upstream c...

Page 13: ...in 345142 mm2 535 06 in 2 Pixel pitch 0 22908 mm x 0 22908 mm Pixel per inch PPI 110 87 Viewing angle 178 vertical typical 178 horizontal typical Luminance output 300 cd m 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 R2300 typical Color depth 1 07 billion colors Color gamut ...

Page 14: ...Gen1 with BC1 2 charging capability at 2 A maximum 1 x USB Type C downstream port with charging capability at 15 W maximum 1 x audio line out port 1 x RJ45 port Border width edge of monitor to active area 10 5 mm Top 10 0 mm Left Right 15 3 mm Bottom Adjustability Height adjustable stand Tilt Swivel Slant adjust 120 mm 5 to 21 30 to 30 4 to 4 NOTE Do not mount or use this monitor in portrait verti...

Page 15: ...76i 720p 1080i 1080p Preset display modes Display mode Horizontal frequency kHz Vertical frequency Hz Pixel clock MHz Sync polarity Horizontal Vertical VESA 640 x 480 31 5 59 9 25 2 VESA 640 x 480 37 5 75 0 31 5 VESA 720 x 400 31 5 70 1 28 3 VESA 800 x 600 37 9 60 3 40 0 VESA 800 x 600 46 9 75 0 49 5 VESA 1024 x 768 48 4 60 0 65 0 VESA 1024 x 768 60 0 75 0 78 8 VESA 1152 x 864 67 5 75 0 108 0 VESA...

Page 16: ...HDMI Ethernet Channel HEC Audio Return Channel ARC standard for 3D format and resolutions and standard for 4K digital cinema resolution HBR3 DisplayPort 1 4 DP audio is supported 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 con...

Page 17: ...nal cable type Digital DisplayPort 20 pins Digital HDMI 19 pins Universal Series Bus Type C 24 pins NOTE Dell monitors are designed to work optimally with the video cables that are shipped with your monitor As Dell does not have control over the different cable suppliers in the market the type of material connector and process used to manufacture these cables Dell does not guarantee video performa...

Page 18: ... lb Model U3821DW Compliant standards ENERGY STAR certified monitor EPEAT registered where applicable EPEAT registration varies by country See www epeat net for registration status by country RoHS compliant TCO certified displays BFR PVC free monitor excluding external cables Arsenic free glass and Mercury free for the panel only Temperature Operating 0 C to 40 C 32 F to 104 F Non operating Storag...

Page 19: ...on operating 12192 m 40000 ft maximum Thermal dissipation 784 8 BTU hour maximum 124 5 BTU hour typical 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 ...

Page 20: ...le 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 on device 15 DDC CLOCK SCL 16 DDC DATA SDA 17 DDC CEC Ground 18 5 V POWER 19 HOT PLUG DETECT ...

Page 21: ...ting the monitor Universal Serial Bus USB interface This section gives you information about the USB ports that are available on the monitor Transfer speed Data rate Maximum power supported Super speed 5Gbps 5 V 0 9 A Max each port High speed 480Mbps 5 V 0 9 A Max each port Full speed 12Mbps 5 V 0 9 A Max each port Super speed USB 5Gbps USB3 2 Gen1 Up to 2 A on USB downstream port with battery ico...

Page 22: ...pstream 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 2 downstream connector Pin number 9 pin side of the connector 1 VCC 2 D 3 D 4 GND 5 SSRX 6 SSRX 7 GND 8 SSTX 9 SSTX ...

Page 23: ...SB 3 2 Gen1 Type B upstream bottom 4 super speed USB 5Gbps USB 3 2 Gen1 Type A downstream bottom Power Charging Port the port with battery icon supports up to 2 A fast charging capability if the device is BC1 2 compatible NOTE Super speed USB 5Gbps USB 3 2 Gen1 functionality requires a super speed USB 5Gbps USB 3 2 Gen1 capable computer NOTE The USB ports on the monitor work only when the monitor ...

Page 24: ...ut your monitor RJ45 connector Pin number 14 pin side of the connected signal cable P1 MDI0 P2 MDI0 P3 MDI1 P4 MDI1 P5 CT P6 CT P7 MDI2 P8 MDI2 P9 MDI3 P10 MDI3 Pin number Green Orange P11 P12 P13 N A P14 N A ...

Page 25: ...s High Data Speed Up to 1000 Mbps NOTE This LAN port is 1000Base T IEEE 802 3az compliant supporting Mac Address Pass thru and Wake on LAN WOL from standby S3 only mode It also supports PXE Boot function include UEFI PXE and Legacy PXE LCD monitor quality and pixel policy During the LCD Monitor manufacturing process it is not uncommon for one or more pixels to become fixed in an unchanging state w...

Page 26: ...cial screen cleaning tissue or solution suitable for the anti static coating Do not use benzene thinner ammonia abrasive cleaners or compressed air Use a lightly dampened warm cloth to clean the monitor Avoid using detergent of any kind as some detergents leave a milky film on the monitor If you notice white powder when you unpack your monitor wipe it off with a cloth Handle your monitor with care...

Page 27: ...chased from any other source follow the setup 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 Remove the stand riser and stand base from the packaging cushion 3 Insert the stand base blocks fully into the stand slot 4 Lift the screw handle and turn the screw clockw...

Page 28: ...efore attaching the stand assembly to the display ensure that the front plate flap is opened to allow space for 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 ...

Page 29: ...ith the protective cushion attached NOTE Lift the monitor carefully to prevent it from slipping or falling 9 Tear apart the zipper die cut in the middle of the protective cushion then remove the protective cushion from the left and right side of the monitor ...

Page 30: ...o 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 Appearance of the computer may vary To connect your monitor to the computer 1 Turn Off your computer and disconnect the power cable 2 Route ...

Page 31: ...elow 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 Toggle the joystick to highlight DP Press and hold the joystick for approximately 8 seconds and the DisplayPort configuration message appears Toggle the joy...

Page 32: ...aunch 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 Toggle the joystick to highlight HDMI Press and hold the joystick for approximately 8 seconds and the DisplayPort configuration message appears Toggle the joystick to select Yes and then press the joystick to save th...

Page 33: ...rt make sure that NO USB storage devices are in use by the computer connected to the monitor s USB downstream port After you have completed connecting the DisplayPort HDMI USB Type C cable follow the procedures below to connect the USB cable to the computer and complete your monitor setup 1 a Connect one computer connect the USB 3 2 Gen1 upstream port cable supplied to an appropriate USB 3 2 Gen1 ...

Page 34: ...g 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 If it does not display an image see Common problems ...

Page 35: ...or RJ45 Cable optional NOTE The RJ45 cable is not an in box standard accessory 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 ...

Page 36: ... following instructions are applicable only for removing the stand that was shipped with your monitor If you are removing a stand that you purchased from any other source follow the setup instructions that were included 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 ...

Page 37: ...ve 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 For more information see the documentation that shipped with the wall mounting kit NOTE For use only with UL or CSA or GS listed wall mount bracket with minimum...

Page 38: ...isplay 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 See Accessing the Menu Launcher When the OSD is displayed press the joystick to confirm the selection or sav...

Page 39: ...move the joystick The following table describes the Menu Launcher functions 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 Label Icon Description 1 Menu To launch the On Screen Display OSD...

Page 40: ...ns the selected item will be highlighted and shifted to the center position Press the joystick to enter its submenu USB Switch To switch between the USB upstream sources in PIP PBP mode Input Source To choose an input source from the list of video signals that may be connected to your monitor Preset Modes To choose a preferred color mode from the list of preset modes Brightness Contrast To access ...

Page 41: ...htness 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 Contrast Adjusts the Brightness first and then adjust the Contrast only if further adjustment is necessary Move the joystick up to increase the contrast level or move the joystick down to decrease the contrast level min 0 max 1...

Page 42: ...joystick to confirm the selection DP Select DP when you are using the DisplayPort DP connector Press the joystick to confirm the selection HDMI 1 Select HDMI 1 when you are using the HDMI 1 connector Press the joystick to confirm the selection HDMI 2 Select HDMI 2 when you are using the HDMI 2 connector Press the joystick to confirm the selection Auto Select Turning on the function allows you to s...

Page 43: ...stick to confirm the selection NOTE The option is available only when Auto Select is on Rename Inputs Allows you to specify a preset input name for the selected input source The preset options are PC PC 1 PC 2 Laptop Laptop 1 and Laptop 2 The default setting is Off NOTE When you perform a rename for the USB C input the wattage value remains after the specified option e g PC 1 90W NOTE It is only a...

Page 44: ... 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 ...

Page 45: ...ently to moisten your eyes or wet your eyes with water after prolonged usage of the monitor 3 Take regular and frequent breaks for 20 minutes every two hours 4 Look away from your monitor and gaze at a distant object at 20 feet away for at least 20 seconds during the breaks 5 Perform stretches to relieve tension in the neck arm back and shoulders during the breaks Movie Loads color settings ideal ...

Page 46: ... and create your own preset color mode 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 imag...

Page 47: ... Movie or Game preset mode Reset Color Resets your monitor s color settings to the factory settings Display Use the Display menu to adjust images Aspect Ratio Adjusts the image ratio to Wide 21 9 Auto Resize 4 3 or Pixel for Pixel 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 Allows you to set the Respon...

Page 48: ...reset modes Standard Color Temp will be disabled when this feature is set to On NOTE User is advised to use factory default brightness setting when this feature is turned on For other brightness level setting the uniformity performance may deviate from the data shown on the Factory Calibration Report USB C Prioritization Allows you to specify the priority to transfer the data with high resolution ...

Page 49: ...a window displaying image from another input source Press the joystick to confirm the selection Sub Window Main Window USB Type C DP HDMI 1 HDMI 1 DP USB Type C HDMI 2 HDMI 2 NOTE The images under PBP mode will be displayed at the center of the split windows ...

Page 50: ...ndow 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 sub window Press the joystick to confirm the selection NOTE The option is available only when the PIP PBP mode is enabled ...

Page 51: ... the joystick to confirm the selection NOTE The option is available only when the PIP PBP mode is enabled Audio Allows you to set the audio source from the main window or the sub window 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 NOTE T...

Page 52: ...t 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 NOTE To prevent data damage or loss before unplugging the USB upstream port make sure that NO USB storage devices are in use by the computer connected to the monitor s USB downstr...

Page 53: ...olume Allows you to set the volume level of speakers Move the joystick to adjust the volume level from 0 to 100 Speaker Allows you to turn on or off the speaker function Reset Audio Select this option to restore default audio settings ...

Page 54: ... 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 Timer Sets the length of time the OSD will remain active after the last time you pressed a button Move the joystick to adjust the slider in 1 second increments from 5 to 60 secon...

Page 55: ...ble by the user Menu Power Buttons Both the joystick Power button are locked and not accessible by the user The default setting is Disable Alternative Lock Method You can move and hold the joystick up down left right for 4 seconds to set the lock options via the pop up menu and then press the joystick to confirm the configuration NOTE To unlock move and hold the joystick up down left right for 4 s...

Page 56: ...save energy USB C Charging 90W The default setting is Off in Off Mode Selecting On in Off Mode may automatically charge your notebook or mobile devices through the USB Type C cable even when the monitor is in off mode Other USB Charging Allows you to enable or disable USB Type A and USB Type C Downstream Ports charging function during monitor standby mode NOTE This option is only available when th...

Page 57: ...e Pressing the joystick may also wake up the monitor after it goes into Standby mode Reset Personalization Resets all settings under the Personalize menu to the factory preset values Others Select this option to adjust the OSD settings such as DDC CI LCD Conditioning and so on Display Info Displays the monitor s current settings ...

Page 58: ...e 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 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 ...

Page 59: ... version of your monitor 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 te...

Page 60: ...ee Monitor specifications for the Horizontal and Vertical frequency ranges addressable by this monitor Recommended mode is 3840 x 1600 You will see the following message before the DDC CI function is disabled When you adjust the Brightness level above the default level for the first time the following message appears NOTE If you select Yes the message will not appear next time when you intend to c...

Page 61: ... the settings of these features When you perform a factory reset the message will appear again When the monitor goes into Standby mode the following message appears Activate the computer and wake up the monitor to gain access to the OSD 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 i...

Page 62: ...htly different according to the connected input signal When the monitor is under DP HDMI input and a USB Type C cable is connected to a notebook that supports DP Alternate Mode if Auto Select for USB C is enabled the following message appears You will see the following message before the Lock function is activated NOTE The message may be slightly different according to the selected settings ...

Page 63: ...Operating the monitor 63 When Factory Reset is selected the following message appears When Yes is selected the following message appears See Troubleshooting for more information ...

Page 64: ...tings 2 Click Advanced display settings 3 Click the dropdown list of Resolution and select 3840 x 1600 4 Click Apply If you do not see 3840 x 1600 as an option you may need to update your graphics driver Depending on your computer complete one of 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 d...

Page 65: ...p 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 and DP is assigned to USB C 90W ...

Page 66: ...tly 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 ...

Page 67: ...ing the monitor 67 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 ...

Page 68: ...68 Operating the monitor 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 ...

Page 69: ... you purchased from any other source follow the setup 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 Vertical extension NOTE The stand extends vertically up to 120 mm The figure below illustrates how to extend the ...

Page 70: ...70 Operating the monitor Slant adjust With the stand attached to the monitor you can adjust the monitor to your desired angle with the slant adjust feature ...

Page 71: ...ideo cable from the computer 3 Turn on the monitor If the monitor cannot sense a video signal and is working correctly the following message will appear NOTE The message may be slightly different according to the connected input signal NOTE While in self test mode the power LED remains white 4 This box also appears during normal system operation if the video cable becomes disconnected or damaged 5...

Page 72: ...en 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 ...

Page 73: ...e joystick to confirm A gray test pattern appears 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 ...

Page 74: ...at the correct input source is selected in the Input Source menu No Video Power LED on No picture or no brightness Increase brightness contrast controls via OSD Perform monitor self test feature check Check for bent or broken pins in the video cable connector Run the built in diagnostics Ensure that the correct input source is selected in the Input Source menu Poor Focus Picture is fuzzy blurry or...

Page 75: ...ogy For more information on Dell Monitor Quality and Pixel Policy see Dell Support site at www dell com pixelguidelines Brightness Problems Picture too dim or too bright Reset the monitor to factory settings Adjust brightness contrast controls via OSD Geometric Distortion Screen not centered correctly Reset the monitor to factory settings Horizontal Vertical Lines Screen has one or more lines Rese...

Page 76: ...he monitor to the computer is connected properly 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 feature check Ensure that the video cable connecting the monitor to the computer is connected properly and is secure Check for bent...

Page 77: ... color depth drops to 18 bits Issues of incorrect refresh rate or missing colors Set USB C Prioritization to High Resolution Common symptoms What you experience Possible solutions Screen image is too small Image is centered on screen but does not fill entire viewing area Check the Aspect Ratio setting in the Display menu OSD Reset the monitor to factory settings Cannot adjust the monitor with the ...

Page 78: ...ight or width of the screen Due to different video formats aspect ratio of DVDs the monitor may display in full screen Run the built in diagnostics No video at HDMI DisplayPort USB Type C port When connected to some dongle docking device at the port there is no video when unplugging plugging the cable from the notebook Unplug the HDMI DisplayPort USB Type C cable from dongle docking device then pl...

Page 79: ...tem USB Type C port does not supply power USB peripherals can not be charged Check that the connected device is compliant with the USB C specification The USB Type C port supports USB 3 2 Gen1 and an output of 90 W Check that you use the USB Type C cable shipped with your monitor Super speed USB 5Gbps USB 3 2 Gen1 interface is slow Super speed USB 5Gbps USB 3 2 Gen1 peripherals working slowly or n...

Page 80: ... the audio cable from the Audio Line Out port and the external speaker Reset the monitor to factory settings Wireless USB peripherals stop working when a USB 3 2 device is plugged in Wireless USB peripherals responding slowly or only working as the distance between itself and its receiver decreases Increase the distance between the USB 3 2 peripherals and the wireless USB receiver Position your wi...

Page 81: ...e located at www dell com regulatory_compliance Contact 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...

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