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Dell Thunderbolt U4025QW - User Manual

Dell Thunderbolt U4025QW
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Model: U4025QW
Regulatory model: U4025QWt
Dell UltraSharp 40 Curved Thunderbolt™
Hub Monitor-U4025QW
User’s Guide

Table of Contents

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Dell Thunderbolt U4025QW Specifications

General IconGeneral
Screen Size40 inches
Aspect Ratio21:9
Panel TypeIPS Black
Refresh Rate60 Hz
Color Support1.07 billion colors
Curvature2500R
VESA Mount100 x 100 mm
KVM SwitchYes
Resolution5120 x 2160
Brightness300 cd/m²
Contrast Ratio1000:1
Response Time5 ms
Color Gamut98% DCI-P3
PortsRJ45
Speakers2 x 9W
Built-in MicrophoneYes
Stand AdjustabilityHeight, Tilt, Swivel
Weight (with stand)14.4 kg

Summary

Safety Instructions

About Your Monitor

Package Contents

Lists components shipped with the monitor.

Product Features

Details the monitor's key features and capabilities.

Blue Light Ratio

Explains the blue light ratio and its compliance levels.

TÜV Rheinland Eye Comfort 3.0

Eye Comfort 3.0 Requirements

Details the requirements and star rating scheme for eye comfort certification.

Operating System Compatibility

Identifying Parts and Controls

Front View

Identifies and describes the front panel components and ports.

Top View

Identifies the ambient light sensor on the top of the monitor.

Back View

Identifies and describes the back panel components and ports.

Bottom View

Identifies and describes the bottom panel ports and connectors.

Monitor Specifications

Resolution Specifications

Details horizontal/vertical scan ranges and maximum resolutions.

Preset Display Modes

Lists various display modes with their resolutions and frequencies.

Thunderbolt 4 Daisy Chain Resolution

Specifies max external monitor resolution for daisy chain setups.

Electrical Specifications

Speaker Specifications

Physical Characteristics

Connector Types

Details the types of connectors available on the monitor.

Dimensions and Weight

Lists physical dimensions and weight of the monitor with/without stand.

Environmental Characteristics

Monitor Resolution for Daisy Chain Setup

Video Resolution Capabilities

Thunderbolt Video Resolution

Lists max video resolutions for Thunderbolt host capabilities.

HDMI Video Resolution

Lists max video resolutions for HDMI versions.

DP Video Resolution

Lists max video resolutions for DisplayPort versions.

Pin Assignments

DP Port (in) Pin Assignments

Shows pin assignments for the DisplayPort input connector.

HDMI Port Pin Assignments

Shows pin assignments for the HDMI port.

Thunderbolt 4;USB Type-C Port Pin Assignments

Details pin assignments for Thunderbolt 4 and USB Type-C ports.

Universal Serial Bus (USB)

USB Port Overview

Provides information about available USB ports and their capabilities.

USB 3.2 Gen2 Specifications

Details transfer speeds and power consumption for USB 3.2 Gen2 devices.

RJ45 Port (Connector Side)

Wake-on-LAN Behavior

RJ45 Connector LED Status

Describes the LED indicators for the RJ45 connector.

Plug-and-Play Capability

LCD Monitor Quality and Pixel Policy

Ergonomics

Handling and Moving Your Display

Maintenance Guidelines

Cleaning Your Monitor

Provides instructions and warnings for safely cleaning the monitor.

Setting Up the Monitor

Attaching the Stand

Step-by-step guide on how to attach the monitor stand.

Tilt, Swivel, and Vertical Extension

Explains how to adjust the monitor's tilt, swivel, and height.

Organizing Your Cables

Provides guidance on managing cables for a clean setup.

Connecting Your Monitor

Connecting the HDMI Cable

Details how to connect the monitor using an HDMI cable.

Switching Primary Resolution via HDMI

Steps to change monitor's primary resolution via OSD using HDMI.

Connecting the DP Cable

Illustrates how to connect the monitor using a DisplayPort cable.

Connecting the Thunderbolt 4 Cable

Illustrates how to connect the monitor using a Thunderbolt 4 cable.

Connecting USB-C Cable (A to C)

Shows how to connect the monitor using a USB-C cable.

Connecting USB Type-C Cable (C to C)

Shows how to connect with a USB Type-C to Type-C cable.

Thunderbolt 4 Daisy Chain Function

RJ45 Cable Connection (Optional)

Dell Power Button Sync (DPBS)

First-Time DPBS Setup

Using the DPBS Function

Thunderbolt Daisy Chain Connection

Connecting Multiple Thunderbolt 4 Monitors

Securing with Kensington Lock (Optional)

Removing the Monitor Stand

Wall Mounting (Optional)

Operating the Monitor

Powering On the Monitor

Basic instruction on how to turn the monitor on.

Using the Joystick Control

How to navigate and use the monitor's joystick control.

Enable Menu Voice Function

Guide to enable an accessibility feature for visually impaired users.

Using Rear-Panel Controls

Explains the functions of the joystick and its menu launcher.

Front-Panel Buttons

Describes the front panel buttons for image adjustments.

Using the Main Menu

Brightness;Contrast Settings

Details how to adjust brightness, contrast, and related settings via the OSD.

Color Temperature Adjustment

Explains how to adjust monitor color temperature.

Primary Monitor for Sync

How to sync monitor settings across daisy-chained displays.

Input Source Selection

How to select different video input sources.

Thunderbolt (140 W) Input

How to select the Thunderbolt 140W input source.

DisplayPort Input

How to select the DisplayPort input source.

HDMI Input

How to select the HDMI input source.

Color Settings and Preset Modes

Details how to adjust color settings and use preset modes.

Input Color Format

How to change the video color mode (RGB/YCbCr).

Saturation Adjustment

How to adjust color saturation in Movie and Game modes.

Display Settings (Aspect Ratio, Sharpness, Response Time)

Options for adjusting aspect ratio, sharpness, and response time.

Uniformity Compensation

How to adjust screen uniformity for brightness and color.

Smart HDR Functionality

How to enable and use Smart HDR for enhanced display output.

Thunderbolt Daisy Chain Management

Bandwidth management for daisy-chained monitors.

Dell Power Button Sync Function

How to control PC power state from the monitor.

PIP;PBP Modes

Adjusting PIP;PBP Modes

How to adjust PIP or PBP modes and their layouts.

PIP;PBP Sub-Window Selection

Selecting video signals for the PBP sub-window.

USB Switch in PBP Mode

Switching USB upstream sources in PBP mode.

Video Swap in PBP Mode

Swapping main and sub-windows in PBP mode.

Screen Partition (DP;TBT)

Enabling dual screen and selecting partition ratios.

USB Port Functionality (KVM)

Ethernet Switch Mode Settings

Setting the Ethernet switch mode for KVM functionality.

Audio Settings (Volume, Speaker)

Adjusting volume and speaker settings.

Menu Settings (Language, Transparency, Timer)

Locking Control Buttons

Personalization Settings (Shortcut Keys, LED)

Other OSD Settings (DDC;CI, LCD Conditioning)

DDC;CI Functionality

Enabling/disabling monitor parameter adjustment via computer software.

LCD Conditioning

Helps reduce minor cases of image retention.

Self-Diagnostic Tool

How to run the monitor's built-in diagnostic tool for screen issues.

Factory Reset

Restoring all settings to factory default values.

Dell Monitor Support Information

Accessing support materials by scanning a QR code.

Using the OSD Lock Function

Locking Buttons via Joystick

Locking OSD menu, power button, or both using the joystick.

Unlocking Control Buttons

Unlocking OSD menu, power button, or both after they have been locked.

Initial Setup and Reset Messages

OSD Warning Messages

Setting Maximum Resolution

Troubleshooting

Monitor Self-Test

How to run the monitor's self-test feature to diagnose issues.

Built-in Diagnostics

How to run the monitor's built-in diagnostic tool for screen issues.

Common Problems and Solutions

Lists common symptoms and their possible solutions.

Product-Specific Problems

Lists problems specific to the monitor and their solutions.

USB Specific Problems

Lists specific problems related to USB interface functionality and solutions.

Regulatory Information

Contacting Dell Support

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