Dell U4025QW UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide
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- Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 1
Dell UltraSharp 40 Curved Thunderbolt™ Hub Monitor-U4025QW User's Guide Model: U4025QW Regulatory model: U4025QWt - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 2
and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2024 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 3
Contents Safety instructions 5 About your monitor 6 Package contents 6 Product features 7 Operating system compatibility 12 Identifying parts and controls 13 Front view 13 Top view 14 Back view 15 Bottom view 16 Monitor specifications 18 Resolution specifications 20 Preset - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 4
monitor 45 Dell Power Button Sync (DPBS 51 Connecting the monitor for DPBS for the first time 54 Using DPBS function 55 Connecting the monitor Troubleshooting 96 Self-test 96 Built-in diagnostics 97 Common Problems 98 Product-specific problems 102 Universal Serial Bus (USB) specific problems - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 5
marked on the product. • Certain monitors can be wall mounted using the VESA mount that is sold separately. Ensure to use the correct VESA specifications as mentioned in the wall mounting section of the User's Guide. For information on safety instructions, see the Safety, Environmental, and - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 6
table provides the list of components that are shipped with your monitor, If any component is missing, contact Dell. 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. Component image - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 7
Setup Guide • Safety, Environmental, and Regulatory Information • Factory Calibration Report Product features The Dell UltraSharp U4025QW monitor has single-cable, network-connected experience. • Plug and play capability if supported by your computer. • On-Screen Display (OSD) adjustments for ease - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 8
you to switch USB KVM function in PBP/PIP mode. • The monitor is designed with a Dell Power Button Sync (DPBS) feature to control PC system power state from a monitor power button.* *Dell system that supports DPBS is listed in the Dell website. DPBS function can be enabled in the OSD menu under - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 9
, which clears the eye visible flicker, brings comfort viewing experience and preventing users suffer from eye strain and fatigue. * For Dell systems that support this feature. ** This monitor is in compliance with TÜV Rheinland hardware low blue light certification under Category 2. About your - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 10
freedom of movement). For more information around TÜV Eye Comfort certification please refer to: https://www.tuv.com/ world/en/eye-comfort.html 10 | About your monitor - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 11
RGB6 Min.95% (CIE 1931) & sRGB4 Min.95% (CIE 1931) User guide Yes Yes Yes ¹ Software controls the blue light emission by reducing excessive blue light is a standard red, green, and blue color space that is in use on monitors, printers, and the World Wide Web. 5 DCI-P3, short for Digital Cinema - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 12
based on factors such as: • Specific release date(s) when operating system versions, patches, or updates are available. • Specific release date(s) when Dell and Alienware branded monitor firmware, software application, or driver updates are available on the Dell support website. 12 | About your - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 13
power charging (15W) Solid white light indicates that the monitor is turned on and functioning as expected. Breathing white light indicates that monitor is in Standby Mode. Connect your USB device. Port with icon supports 5 V/ 3 A. USB Type-A downstream port Connect your USB device. (SuperSpeed - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 14
Brightness. NOTE: If the Ambient Light Sensor detects an abnormal change in the light level, see The detected light level drops significantly. 14 | About your monitor - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 15
. For more information, see Operating the Monitor. 6 Mac address, Barcode, See this label if you need to contact Dell for technical serial number, and support. The Service Tag is a unique alphanumeric Service Tag label identifier that enables Dell service technicians to identify the hardware - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 16
with ThunderboltTM or USB-C® ThunderboltTM 4 downstream port (15W) for daisy cable. NOTE: 1) Thunderbolt™ 4 up to 40 Gbps bandwidth; chaining 2) Supports up to two 5K monitors through the Daisy (Video + Data) chain; 3) The highest power output is up to 15 W or 5 V/3 A. NOTE: Remove the - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 17
Audio line-out Connect your USB device. You can use these ports only after you have connected the USB cable from the computer to the monitor. The port with icon supports Menu Voice function. Connect speakers to playback audio through HDMI or DisplayPort audio channels. Only two-channel audio is - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 18
with an appropriate cable mentioned above. 13 Stand lock Lock the stand to the monitor using a M3 x 8 mm screw (screw not included). 14 Built-in speakers input. NOTE: ThunderboltTM is a trademark of Intel Corporation. Monitor specifications Screen type Active matrix - TFT LCD Panel Type In - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 19
Static Metadata, VRR as per specified in HDMI 2.1.) • 1 x DP 1.4 (HDCP 2.3) (Support up to 5120 x 2160 120Hz, HDR, DSC) • 1 x ThunderboltTM 4 downstream port (15 Gbps, USB 3.2 Gen2) with power charging (15W) Border width (edge of monitor to active area) Top Left/Right Bottom 11.30 mm 11.30 mm 15. - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 20
inverse (180°) landscape mount as it may damage the monitor. Cable management Yes Dell Display Manager Easy Arrange and other key features (DDM)Compatibility Security Security lock slot (cable lock sold separately) *The monitor is capable of producing 1.07 billion colors at maximum resolution - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 21
567.25 +/- 347.06 +/- 703.93 +/- 1485.0 +/+ ThunderboltTM 4 out for daisy chain OSD Display Info: Link rate(current) Maximum external monitor resolution that can be supported 5120 x 2160 at 120 Hz NOTE: The Maximum resolution of 5120 x 2160 at 120Hz can only be produced with ThunderboltTM - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 22
Per differential line at 100 ohm impedance • DP/HDMI/Thunderbolt™ 4 (140 W) signal input support 100-240 VAC/50 Hz or 60 Hz ± 3 Hz/4.2 A (typical) Inrush current to accuracy or completeness is expressed or implied. NOTE: This monitor is ENERGY STAR certified. This product qualifies for ENERGY STAR - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 23
connector x 2 (Port with icon supports 5 V/3 A) • SuperSpeed USB Type-A 3.2 Gen2 downstream port x 5 (Port with battery icon supports BC 1.2.) (Port with icon supports Menu Voice function.) Signal cable type in.) Depth 108.04 mm (4.25 in.) Stand dimensions About your monitor | 23 - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 24
in.) 19.02 kg (41.93 lb) 12.22 kg (26.94 lb) 8.35 kg (18.41 lb) 3.38 kg (7.45 lb) 24 | About your monitor - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 25
country. See https://www.epeat.net for registration status by country. • TCO Certified & TCO Certified Edge. • 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 - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 26
5120 x 2160 @ 30 Hz NA Not supported NOTE: Monitor daisy chain only via ThunderboltTM port. NOTE: Set the OSD for "Thunderbolt Daisy Chain" to "Optimized" to get 5120 x2160 @120Hz on both the monitors. NOTE: If TBT out cannot display, please refer to Troubleshooting TBT out cannot display. 26 - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 27
5.4G 4-Lane DSC 5.4G 4-Lane Maximum Resolution 5120 x 2160 @ 120 Hz 5120 x 2160 @ 60 Hz 5120 x 2160 @ 120 Hz 5120 x 2160 @ 60 Hz About your monitor | 27 - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 28
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 28 | About your monitor - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 29
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 About your monitor | 29 - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 30
B11 SSRXp1 B10 SSRXn1 B9 VBUS B8 SBU2 B7 Dn1 B6 Dp1 B5 CC2 B4 VBUS B3 SSTXn2 B2 SSTXp2 B1 GND 30 | About your monitor - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 31
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 5 V/3 A compatible. NOTE: The monitor's USB ports work only when the monitor is on or in Standby Mode. On in Standby Mode, if the USB cable (A to - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 32
+ GND_DRAIN StdA_SSTXStdA_SSTX+ Shield USB 3.2 Gen2 (10 Gbps) downstream port (rear) Pin number 1 2 3 4 5 6 7 8 9 Shell Signal name VBUS DD+ GND StdA_SSRXStdA_SSRX+ GND_DRAIN StdA_SSTXStdA_SSTX+ Shield 32 | About your monitor - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 33
+ BI_DD- Driver installation Install the Realtek USB GBE Ethernet Controller Driver available for your system. This is available for download at https://www.dell.com/support under the "Driver and download" section. Network (RJ45) data rate through USB-C® max speed is 2.5 Gbps. About your - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 34
Firmware Interface. NOTE: WOL S4 and WOL S5 are only capable with Dell Systems that support DPBS and are with ThunderboltTM/USB-C® (MFDP) interface connection. NOTE: Any issue that is related to WOL, users should debug the computer without a monitor. After the problem is solved, then connect to the - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 35
on the port. • Green On - Link is being established. • Off - Link is not established. NOTE: RJ45 cable is not a standard in-box accessory. About your monitor | 35 - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 36
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 which are hard to see and do not affect the display quality or usability. For more information on Dell Monitor Quality and Pixel Policy, see https - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 37
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 U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 38
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 U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 39
do not press on the display area to avoid any scratches or damage. • When transporting the monitor, avoid any sudden shock or vibration to it. • When lifting or moving the monitor, do not turn the monitor upside down while holding the stand base or stand riser. This may result in accidental damage - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 40
outlet. For best practices, follow the instructions in the list below when unpacking, cleaning, or handling your monitor: • Use a clean cloth that is slightly dampened with water to clean the stand assembly, the screen, and the chassis of your Dell monitor. If available, use a screen-cleaning tissue - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 41
. If you are attaching a stand that you purchased from any other source, follow the setup instructions that were included with the stand. To attach the monitor stand: 1. Align and place the stand riser on the stand base. 2. Open the screw handle at the bottom of the stand base and turn it - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 42
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. 42 | Setting up the monitor - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 43
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. Tear the paper cushion from the monitor. Setting up the monitor | 43 - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 44
connecting a stand that you purchased from any other source, follow the setup instructions that were included with the stand. Tilt, swivel, and vertical extension With the stand that is attached to the monitor, you can tilt the monitor for the most comfortable viewing angle. 5° 30° 30° 150 mm 21 - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 45
any of the procedures in this section, follow the Safety Instructions. NOTE: Dell monitors are designed to work optimally with the Dell supplied cables inside the box. Dell does not guarantee the video quality and performance if non-Dell cables are used. NOTE: Route the cables through the cable - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 46
primary resolution 1. Press the joystick button to launch the OSD main menu. 2. Move the joystick to select input source. UltraSharp 40 Monitor Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu Personalize Others More Information Thunderbolt (140W) DP HDMI Rename Inputs Auto - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 47
is 5K. Switch to higher primary resolution for HDMI? Yes No Connecting the DP cable Connecting the ThunderboltTM 4 cable ThunderboltTM 4 upstream ThunderboltTM 4 Setting up the monitor | 47 - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 48
monitor is designed to supply power delivery of up to 140 W to your laptop. Rated power (on laptops that have USB Type-C® with Power Delivery) Maximum charging power 45 W 45 W 90 W 90 W 140 W *140 W *Need laptops to support EPR 140 W charging. WARNING: The Dell UltraSharp U4025QW supports - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 49
Tech sheet at Dell.com/support/ U4025QW. Connecting the monitor for ThunderboltTM 4 daisy chain function ThunderboltTM 4 upstream ThunderboltTM 4 downstream ThunderboltTM 4 upstream NOTE: Only support two monitors through ThunderboltTM 4 daisy chain. See product specific problems -No image when - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 50
Connecting the monitor for RJ45 Cable (Optional) ThunderboltTM 4 upstream 50 | Setting up the monitor - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 51
) feature to allow you to control PC system power state from the monitor power button. This feature is only supported with the Dell platform which has a built-in DPBS function, and is only supported over ThunderboltTM 4 interface. ThunderboltTM 4 upstream Thunderbolt™ 4 USB Type-C To make sure the - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 52
3. Go to the System Settings. 4. In the When I press the power button drop-down list, you can select Sleep, Hibernate, or Shut down. NOTE: Do not select Do nothing, otherwise monitor power button cannot sync with PC system power state. 52 | Setting up the monitor - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 53
OSD Display, turn On from off in Dell Power Button Sync. UltraSharp 40 Monitor Brightness/Contrast Aspect Ratio Input Source Sharpness Color Response Time Display Uniformity Compensation PIP/PBP Smart HDR USB Audio Thunderbolt Daisy Chain Dell Power Button Sync On Menu Reset Display - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 54
PC* Ultra platform using its DC adapter jack. Alternatively, you can power the Dell PC* Ultra platform using the monitor's ThunderboltTM 4 cable over Power Delivery (PD); Set ThunderboltTM 4 charging to on from off mode. * Ensure to check the Dell PC for DPBS supportability. 54 | Setting up the - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 55
button New Power state of system (OFF) ThunderboltTM 4 ThunderboltTM 4 1 upstream Initial monitor power state (OFF) 2 New Power state of monitor (ON) Initial system power state (OFF) ThunderboltTM 4 Press PC/Monitor power button New Power state of system (ON) ThunderboltTM 4 When the - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 56
When the monitor and PC power state are both ON, while you press and hold the monitor power button for 10 seconds, the PC shuts down. Press and hold 10s ThunderboltTM 4 PC will shut down 56 | Setting up the monitor - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 57
, and the PC power state is synchronized with the Monitor 1 power button. When you press the Monitor 1 or PC power button, both the Monitor 1 and PC turn on. Meanwhile the Monitor 2 will remain off. You need to manually press the power button on Monitor 2 to turn it on. ThunderboltTM 4 upstream - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 58
an initially ON power state, by pressing the power button on Monitor 1 or Monitor 2 will turn OFF the PC, Monitor 1, and Monitor 2. * Ensure to check the Dell PC for DPBS supportability. NOTE: DPBS only supports the ThunderboltTM 4 port. ThunderboltTM 4 upstream System power state (ON) Thunderbolt - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 59
ThunderboltTM 4 to On in Off Mode. While the PC and two monitors are in an initially OFF power state, by pressing the power button on Monitor 1 or Monitor 2 will turn ON the PC, Monitor 1, and Monitor 2. ThunderboltTM 4 upstream System power state (OFF) Thunderbolt™ 4 port 1 Thunderbolt™ 4 port - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 60
using Kensington lock (optional) The security lock slot is located at the bottom of the monitor (see Security lock slot). Secure your monitor to a table using the Kensington security lock. For more information on using the Kensington lock (purchased separately), see the documentation that is shipped - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 61
and handle it carefully. NOTE: The following steps are specific for removing the stand that is shipped with your monitor. If you are removing a stand that you purchased from any other source, follow the setup instructions that are included with the stand. To remove the stand: CAUTION: Place the - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 62
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 U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 63
the joystick control To modify the OSD adjustments using the joystick control on the rear end of the monitor, do the following: 1. Press the joystick to open the OSD Menu Launcher. 2. Move the joystick Launcher. For right and left navigation. For up and down navigation. Operating the monitor | 63 - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 64
This is an accessibility feature for people who are visually impaired. This feature can also be disabled in the Main Menu. 1. Power on the monitor by pressing the power button. 2. Connect the Dell Monitor Text to Speech User Interface Module-TS23* to the USB port marked CVAA at the back of the - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 65
choose from a list of Input Source. Allows to choose from a list of Preset color modes. To directly access the Brightness/Contrast adjustment sliders. Operating the monitor | 65 - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 66
main menu or exit the OSD main menu. 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 4 Use the Tick button to confirm your selection. Tick 66 | Operating the monitor - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 67
Move the Joystick Down to decrease contrast (Range: 0-100). The Contrast function adjusts the degree of difference between darkness and lightness on the monitor screen. Enabled Ambient Light Sensor to auto-adjust the luminance setting. It is used for selecting the upper luminance threshold of Auto - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 68
Sync When either Auto Brightness or Auto Color Temp. is turned on and multiple Dell monitors that support this function are connected through daisy chain, one of the monitors can be appointed as the Primary to synchronize the Brightness and Color setting with the other. NOTE: When Auto Brightness - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 69
to DP/HDMI Video Input message for user to choose whether to switch or not. • Always Switch: The monitor always switches to DP/ HDMI video by default while DP/HDMI is connected. • Off: The monitor does not auto-switch to DP/HDMI video from another available input. Reset Input Source Resets all - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 70
When you select Preset Modes, you can choose Standard, Movie, Game, Color Temp, Color Space, or Custom Color from the list. UltraSharp 40 Monitor Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu Personalize Others More Information Preset Modes Input Color Format Reset Color - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 71
create your own preset color mode. Allow you to change the video color mode manually if the video content does not support auto selection. • RGB: Select this option if your monitor is connected to a computer or a media player that supports RGB output. • YCbCr: Select this option if your media player - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 72
. Use the Display menu to adjust image. UltraSharp 40 Monitor Brightness/Contrast Input Source Color Display Aspect Ratio Sharpness Response Time /PBP USB Smart HDR Thunderbolt Daisy Chain O Standard Audio Dell Power Button Sync Menu Reset Display Personalize Others More Information - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 73
disabled when HDR display content is activated. UltraSharp 40 Monitor Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Ratio Sharpness Response Time Uniformity Compensation Smart HDR Thunderbolt Daisy Chain Dell Power Button Sync Reset Display Desktop Movie HDR Game HDR DisplayHDR - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 74
you to control PC system power state from the monitor power button. Allows you to On or Off Dell Power Button Sync function. NOTE: This feature is only supported with the Dell platform which has a built-in DPBS function, and is only supported over Thunderbolt interface. Resets all settings under the - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 75
function brings up a window displaying an image from another input source. NOTE: The PBP/PIP, Screen Partition do not support HDR, and VRR/DRR. UltraSharp 40 Monitor Brightness/Contrast Input Source Color Display PIP/PBP Mode O Screen Partition (DP/TBT) O PIP/PBP USB Audio Menu Personalize - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 76
Description PIP/PBP Mode Adjusts the PIP or PBP (Picture by Picture) mode. You can disable this feature by selecting Off. UltraSharp 40 Monitor Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu Personalize Others More Information PIP/PBP Mode Screen Partition (DP/TBT) O 50 - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 77
button to select the PBP sub-window source signal. NOTE: The feature is available only when the PIP/PBP mode is enabled. UltraSharp 40 Monitor Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu Personalize Others More Information PIP/PBP Mode PIP/PBP (Sub) USB Switch Video Swap - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 78
: The feature is available only when the Screen partition (DP/TBT) is enabled. NOTE: Select 60Hz only when there is problem in setting up two partition. UltraSharp 40 Monitor Brightness/Contrast PIP/PBP Mode Input Source PIP/PBP (Sub) Color USB Switch Display Video Swap PIP/PBP USB Audio - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 79
are assigned and can be used with the active video. UltraSharp 40 Monitor Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu Personalize HDMI assign to Ethernet Switch Mode Ethernet Switch Show KVM Setup Guide Reset USB USB-C USB-C Prompt when KVM switches Select √ Exit NOTE: - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 80
Submenus Ethernet Switch Mode Ethernet Switch Show KVM Setup Guide Reset USB Audio Description Allows you to set Manually: When KVM USB switches, Ethernet does not switch. Manually switch Ethernet. Select this option and follow the steps if you want to connect multiple computers to the monitor - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 81
of the OSD, such as the languages of the OSD, the amount of time the menu remains on screen, and so on. UltraSharp 40 Monitor Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu Personalize Others More Information Language Transparency Timer Lock Reset Menu English 20 20s - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 82
sideby-side setup. NOTE: The function will be disabled when Menu Voice is On. UltraSharp 40 Monitor Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu Personalize Others More Information Language Transparency Timer Lock Reset Menu Menu Buttons Power Button - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 83
of the power light to save LED energy. USB-C Charging (140W) Allows you to enable or disable USB-C Charging (140W) charging function during monitor power off mode. NOTE: When this function is enabled, you can charge your notebook or mobile devices through the ThunderboltTM cable even when the - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 84
. You can disable this feature by selecting Off. Enable this feature for the best user experience and optimum performance of your monitor. UltraSharp 40 Monitor Brightness/Contrast DDC/CI On Input Source LCD Conditioning O Color Display Self-Diagnostic Menu Voice PIP/PBP USB Reset Others - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 85
the degree of image retention, the program may take some time to run. You can enable this feature by selecting On. UltraSharp 40 Monitor Brightness/Contrast DDC/CI Input Source LCD Conditioning On Color Self-Diagnostic O Display Menu Voice PIP/PBP Reset Others USB Factory Reset Audio - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 86
ENERGY STAR® tests. UltraSharp 40 Monitor Brightness/Contrast Input Source Color Display Display Info Dell Monitor Support Select √ Select √ PIP/PBP VRR, ALLM, QFT) 8.1Gbps 4-lane, DSC Thunderbolt Thunderbolt Model: Firmware: Service Tag: U4025QW M3T101 CN073K0 86 | Operating the monitor - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 87
Icon Menu and Submenus Dell Monitor Support Description To access the general monitor support materials for your monitor, use your smartphone to scan the QR code. Dell Monitor Support Scan QR Code below for general monitor support and setup guides for: - KVM -Daisy Chain KVM Daisy Chain Operating - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 88
lock the buttons. 1. Select one of the following options. UltraSharp 40 Monitor Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu Personalize Menu Buttons? To unlock the Button, refer to the User's Guide. Yes No 3. Select Yes to lock buttons. Once locked, pressing any control button - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 89
the OSD menu function. Menu button lock 2 Use this option to lock power button. This prevents Power button lock the user to turn off the monitor using the power button. 3 Use this option to lock the OSD menu and power button to turn off the - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 90
Option: 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 the OSD menu and the power button to turn off the - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 91
sure you want to reset to default settings? Yes No When you select Yes to reset to default settings, the following message appears: UltraSharp 40 Monitor Select 'Yes' to enable the following function(s): . Always on USB-C Charging . Other USB Charging Yes No UltraSharp 40 - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 92
following message: The current input timing is not supported by the monitor display. Please change your input timing to 5120x2160 or any other monitor listed timing as per the monitor speci cations. The above message explains that the monitor cannot synchronize with the signal that it is receiving - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 93
A message is displayed while the cable supporting DP alternate mode is connected to the monitor under the following conditions: • When Auto Select for Thunderbolt(140W) is set to Prompt for Multiple Inputs. • When the ThunderboltTM cable is connected to the monitor. Select the primary use of the - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 94
in 4 minutes. www.dell.com/U4025QW or No Thunderbolt(140W) Cable The display will go into Standby Mode in 4 minutes. www.dell.com/U4025QW or No HDMI Cable The display will go into Standby Mode in 4 minutes. www.dell.com/U4025QW See Troubleshooting for more information. 94 | Operating the monitor - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 95
click Display Settings. 2. If you have more than one monitor connected, ensure that you select U4025QW. 3. Click the Display Resolution dropdown list and select 5120 procedures: If you have a Dell desktop or laptop: • Go to https://www.dell.com/support, enter your service tag, and download the latest - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 96
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 U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 97
you are experiencing is an inherent problem with your monitor, or with your computer and video card. UltraSharp 40 Monitor Brightness/Contrast Input Source Color using the built-in diagnostic tool, the monitor is functioning properly. Check the video card and computer. Troubleshooting | 97 - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 98
more information about Dell Monitor Quality and Pixel Policy, see Dell Support site at: https://www.dell.com/pixelguidelines. Brightness problems Picture too dim or too bright • Reset the monitor to factory settings. • Adjust brightness and contrast controls using OSD. 98 | Troubleshooting - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 99
-related Visible signs of smoke • Do not perform any troubleshooting steps. issues or sparks • Contact Dell immediately. Intermittent problems Monitor malfunctions • Ensure that the video cable connecting on and off the monitor to the computer is connected properly and is secure. • Reset - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 100
1st DUT ThunderboltTM out port with TBT4 cable. The 2nd monitor or 1st monitor cannot reach 5120 x 2160 @120 Hz 2nd monitor Connect 1st DUT • Intel UHD graphic limitation, suggest to on both OSD and Windows display setting. 2nd monitor shows black screen 100 | Troubleshooting - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 101
to monitor, connect HDMI cable to platform and display normally, then connect DP cable to platform. The signal cannot automatically to DP signal Possible solutions • Unplug and plug the DP cable from the monitor side. • Go to the OSD menu and enter input source select DP manually. Troubleshooting - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 102
problems Problem What you experience Possible solutions Screen image is The image is centered • Check the Aspect Ratio setting in the too small on the screen, but Display menu OSD. does not fill the entire • Reset the monitor to factory settings. viewing area Cannot adjust the monitor - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 103
Problem Possible solutions • Verify if the device can support one of the 5 V/9 V/15 V/20 4 connection. • Ensure that you use only the Dell approved adapter or the adapter that comes with the EPR 140 W. • Ensure that you use only the Dell approved adapter or the adapter that comes with the product. - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 104
Problem What you experience Possible solutions The LAN port is Operating system not functioning setting or cable connection issue • any dust that may be covering the sensor area. • Ensure that the display is not pivoted and placed to another monitor side-by-side. 104 | Troubleshooting - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 105
problems Specific Symptoms What you experience Possible solutions USB interface is USB peripherals are not working not working • Check that your display is turned ON. • Reconnect the upstream cable to your computer. • Reconnect the USB peripherals (downstream connector). • Turn off the monitor - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 106
regulatory information For FCC notices and other regulatory information, see the regulatory compliance at https://www.dell.com/regulatory_compliance. EU product database for energy label and product information sheet U4025QW: https://eprel.ec.europa.eu/qr/1821612 106 | Regulatory information - Dell U4025QW | UltraSharp 40 Curved Thunderbolt Hub Monitor - Users Guide - Page 107
Contacting Dell To contact Dell for sales, technical support, or customer service issues, see www.dell. com/contactdell. NOTE: Availability varies by country and product, and some services may not be available in your country. NOTE: If you do not have an active internet connection, you can find
Model: U4025QW
Regulatory model: U4025QWt
Dell UltraSharp 40 Curved Thunderbolt™
Hub Monitor-U4025QW
User’s Guide