Dell UD22 Dell Universal Dock UD22 User Guide [EN]

Dell Universal Dock UD22

User Guide

Regulatory Model: K22A
Regulatory Type: K22A001
MAY 2022
Rev. A00

Notes, cautions, and warnings

NOTE:

A NOTE indicates important information that helps you make better use of your product.

CAUTION:

A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the
problem.

WARNING:

A WARNING indicates a potential for property damage, personal injury, or death.

© 2022 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

Chapter 1:

Chapter 2:

Chapter 3:

Chapter 4:

Chapter 5:

Chapter 6:

Chapter 7:

Chapter 8:

Chapter 9:

Chapter 10:

Introduction..................................................................................................4

Package Contents..........................................................................................5

Hardware Requirements.................................................................................7

Identifying Parts and Features........................................................................8

Important Information...................................................................................12

Quick Setup of Hardware...............................................................................13

Setup of External Monitors...........................................................................16

Updating the Graphics Drivers for Your Computer.........................................16

Configuring Your Monitors........................................................................16

Display Bandwidth.....................................................................17

Display Resolution Table............................................................................17

Technical Specifications.............................................................19

Dock Status Indicator...........................................................19

Docking Specifications.............................................................................19

Smart and Adaptive Power Delivery............................................21

Dell Universal Dock UD22 Firmware Update...........................................22

Frequently Asked Questions.............................................................25

Chapter 11:

Chapter 12:

Troubleshooting the Dell Universal Dock UD22.......................................26

Symptoms and Solutions.....................................................26

Getting Help..........................................................................................29

Contents 3

1

Introduction

The Dell Universal Dock UD22 is a device that links all your peripheral devices to your computer using a USB Type-C cable
interface. Connecting the computer to the docking station allows you to access all peripherals (mouse, keyboard, stereo
speakers, external hard drive, and large-screen displays) without having to plug each one into the computer.

Update your computer’s BIOS, graphic drivers and the Dell Universal Dock UD22 driver to the latest

CAUTION:

versions available at www.dell.com/support BEFORE using the docking station. Older BIOS versions and drivers
could result in your computer not recognizing the docking station or not functioning optimally. Always check if
any recommended rmware is available for your docking station at www.dell.com/support.

Introduction 4

Package Contents

Your docking station ships with the components shown below:

Table 1. Package contents

Contents Specications

1. Dell Universal Dock UD22 with USB Type-C cable

2. Dell 130W AC power adapter

3. Power cord

Quick Start Guide
(QSG)

2

Package Contents 5

Table 1. Package contents (continued)

Contents Specications

Safety, Environmental, and Regulatory Information

Package Contents 6

Hardware Requirements

Before using the Dell Universal Dock UD22, ensure that your system has a USB Type-C with DisplayPort Alt Mode
that is designed to support the docking station.

3

Hardware Requirements 7

4

Identifying Parts and Features

1.

Figure 1. Top view

1. USB Type-C cable (connects to your computer's USB Type-C port)

Identifying Parts and Features 8

Figure 2. Front view

1.

3.

1.

2.

3.

Figure 3. Right view

1.

USB 3.2 Gen 2 (10Gbps) port

USB 3.2 Gen 2 (10Gbps) port with PowerShare

USB 3.2 Gen 2 Type-C (10Gbps) port with PowerShare

Kensington nano lock slot

1.2.2.

2.

Kensington security-cable slot

Identifying Parts and Features 9

1. 2. 4. 6.

Figure 4. Back view

3. 5.

1.

2.

3.

4.

5.

6.

Power connector

HDMI 2.0 port

Two DisplayPort++ 1.2 ports

RJ45 Ethernet port (1000/100/10 Mbps)

Two USB 3.2 Gen2 (10Gbps) ports

USB 3.2 Gen 2 Type-C port with DisplayPort 1.4 Alt Mode

Identifying Parts and Features 10

Figure 5. Bottom view

1.

Service tag label

2.

Two VESA mount slots

1.

2.2.

Identifying Parts and Features 11

5

Important Information

Dell Universal Dock UD22 driver Synaptics (DisplayLink) USB Graphic and USB Network Interface Controller Driver) is required
to be installed before using the docking station for full functionality. Dell recommends updating the computer's BIOS and
graphics driver to the latest version before using the docking station. Older BIOS versions and drivers could result in the docking
station not being recognized by your computer or not functioning optimally.

Updating Drivers on Your System

It is recommended to update the following drivers on your system before using Dell Universal Dock UD22:

1. System BIOS

2. Graphics driver

3. USB controller driver

4. Ethernet driver

CAUTION:

Older BIOS versions and drivers could result in the docking station not being recognized

by your system or not functioning optimally.

For Dell systems, you can visit www.dell.com/support and enter the Service Tag or Express Service Code to nd all relevant
drivers. For more information on how to nd the Service Tag for your computer, see Locate the Service Tag on your computer.
For non-Dell systems, please visit the respective manufacturer's support page to nd the latest drivers.

Updating the Dell USB-C Universal Dock ­UD22 Driver Set

To ensure that the Dock functions correctly, it is highly recommended to install the latest rmware available for the UD22.
All available drivers can be found on www.dell.com/support.

Important Information 12

Quick Setup of Hardware

Steps

1. Update your system's BIOS, graphics and drivers from www.dell.com/support/drivers.

6

Quick Setup of Hardware 13

2. Connect the AC power adapter to a power outlet. Then, connect the AC adapter to the 7.4 mm DC-in power input on
the Dell Universal Dock UD22.

Figure 6. Connecting the AC power adapter

3. Connect the USB Type-C cable to the computer/laptop.
Update the Dell Universal Dock UD22 rmware and driver from www.dell.com/support/drivers.

Quick Setup of Hardware 14

Figure 7. Connecting the USB Type-C cable

4. Connect multiple displays to the docking station, as needed.

Figure 8. Connecting the multiple displays

Quick Setup of Hardware 15

7

Setup of External Monitors

Topics:

Updating the Graphics Drivers for Your Computer

Conguring Your Monitors

Display Bandwidth

Display Resolution Table

Updating the Graphics Drivers for Your Computer

The Microsoft Windows operating systems include the VGA graphics drivers only. Therefore, for optimum graphics performance,
it is recommended that Dell graphics drivers applicable for your computer be installed from dell.com/support under the “Video”
section

NOTE:

1.

For Nvidia Discrete Graphics solutions on the supported Dell systems:

a. First, install the Intel Media Adapter Graphics Driver applicable to your computer.

b. Second, install the Nvidia Discrete Graphics Driver applicable to your computer.

Please read your computer's user guide to check if you need to install Intel Media Adapter

Graphics Driver or Nvidia Discrete Graphics Driver, or both.

2.

For AMD Discrete Graphics solutions on the supported Dell systems:

a. First, install the Intel Media Adapter Graphics driver applicable to your computer.

b. Second, install the AMD Discrete Graphics driver applicable to your computer.

Conguring Your Monitors

If connecting two displays, follow these steps:

Steps

1. Click the Start button, and then select Settings.

2. Click System and select Display.

Setup of External Monitors 16

3. Under the Multiplay displays section, modify display conguration as needed.

Display Bandwidth

• DisplayPort High Bit Rate 2 (HBR2) is DP 1.2 (5.4 Gbps maximum link rate per lane). With DP overhead and UD22 MST display

bandwidth, the eective data rate is 4.25Gbps per lane.

• DisplayPort High Bit Rate 3 (HBR3) is DP 1.4 (8.1 Gbps maximum link rate per lane). With DP overhead and UD22 MST display

bandwidth, the eective data rate is 6.25Gbps per lane.

• DisplayPort High Bit Rate 3 (HBR3) with DSC (Display Stream Compression) compression 1:2.1 ratio or higher is DP 1.4 (8.1

Gbpsx2.1=17.02Gbps

maximum link rate per lane). With DP overhead and UD22 MST display bandwidth, the eective data rate is 13.125Gbps per lane.

Table 2. Display bandwidth

Resolution

FHD (1920 × 1080) @60 Hz x1 4.15 3.33 3.2

FHD (1920 × 1080) @60 Hz x2 8.3 6.66 6.4

QHD (2560 × 1440) @60 Hz x1 7.4 9 5.8 5.63

QHD (2560 × 1440) @60 Hz x2 14.98 11.6 11.26

4K (3840 × 2160) @30 Hz x1 8.1 3 6.31 6.1 8

4K (3840 × 2160) @30 Hz x2 16.26 12.62 12.36

4K (3840 × 2160) @60 Hz x1 17.1 12.8 12.54

4K (3840 × 2160) @60 Hz x2 34.2 25.6 25.08

(Computer supported)

CVT CVT-RB CVT-RB v2

Minimum bandwidth required

Display Resolution Table

Table 3. Dell Universal Dock UD22 display resolution and refresh rate table (When UD22 dock driver is installed in computer)

Setup of External Monitors 17

Computer and Dell Universal Dock UD22

USB Type-C Specication and

USB over

Type-C

3.2/3.1/3.0

Gen2 or Gen1

USB 3.2/3.1/3.0

Gen2 or Gen1

USB 3.2/3.1/3.0

Gen2 or Gen1

USB

USB

Bandwidth

DP

Alternative

Mode over

USB Type-C

HBR2 x2

lanes=8.5Gbps

(Computer DSC

disable)

HBR3 x2
lanes=12.5Gbps
(Computer DSC

disable)

HBR3 x2

lanes=26.25Gbps
(DSC enable, and

DP compression

ratio=1:2.1 or

above)

Dell Universal Dock UD22 Max. Resolution and Refresh Rate

USB Graphic Mode DP Alternative Mode

DisplayPort-1
(Near HDMI)

4K (3840 × 2160)

@60 Hz

4K (3840 × 2160)

@60 Hz

4K (3840 × 2160)

@60 Hz

DisplayPort-2

(Near Ethernet

RJ-45)

4K (3840 × 2160)

@60 Hz

4K (3840 × 2160)

@60 Hz

4K (3840 × 2160)

@60 Hz

HDMI USB Type-C MFDP

HDMI and USB Type-C MFDP share 8.5Gbps

4K (3840 x 2160) @30Hz x1

●

QHD (2560 x 1440) @60Hz x1

●

FHD (1920 x1080) @60Hz x2

●

User manual setting

●

HDMI and USB Type-C MFDP share 12.5Gbps

4K (3840 x 2160) @30Hz x1

●

QHD (2560 x 1440) @60Hz x2 (when computer

●

supported CVT-RB or CVT-RB v2)

QHD (2560 x 1440) @60Hz x1 (when computer

●

supported CVT)

FHD (1920 x1080) @60Hz x2

●

User manual setting

●

HDMI and USB Type-C MFDP share 26.25Gbps

4K (3840 x 2160) @60Hz x2 (when computer

●

supported CVT-RB or CVT-RB v2)

4K (3840 x 2160) @60Hz x1 (when computer

●

supported CVT)

QHD (2560 x 1440) @60Hz x2

●

User manual setting

●

Table 4. Dell Universal Dock UD22 display resolution and refresh rate table (When UD22 dock driver is NOT installed in
computer or under computer BIOS environment)

Computer and Dell Universal Dock UD22

USB Type-C Specication and

USB over USB

Type-C

3.2/3.1/3.0

Gen2 or Gen1

USB 3.2/3.1/3.0

Gen2 or Gen1

USB 3.2/3.1/3.0

Gen2 or Gen1

NOTE:

If higher resolution monitors are used, the graphics driver makes a judgment based on monitor specications

USB

Bandwidth

DP Alternative

Mode over USB

Type-C

HBR2 x2

lanes=8.5Gbps

(Computer DSC

disable)

HBR3 x2
lanes=12.5Gbps
(Computer DSC

disable)

HBR3 x2

lanes=26.25Gbps
(DSC enable, and

DP compression

ratio=1:2.1 or

above)

Dell Universal Dock UD22 Max. Resolution and Refresh Rate

USB Graphic Mode DP Alternative Mode

DisplayPort-1 (Near

DisplayPort-2

(Near Ethernet RJ-45)

No Display

No Display

No Display

HDMI) or USB Type-C

MFDP

(supports only one

display at a time)

DP-1/USB Type-C MFDP and HDMI share 8.5Gbps

4K (3840 x 2160) @30Hz x1

●

QHD (2560 x 1440) @60Hz x1

●

FHD (1920 x1080) @60Hz x2

●

User manual setting

●

DP-1/USB Type-C MDFP and HDMI share 12.5Gbps

4K (3840 x 2160) @30Hz x2 (When computer

●

supported CVT-RB or CVT-RB v2)

4K (3840 x 2160) @30Hz x1 (when computer

●

supported CVT)

QHD (2560 x 1440) @60Hz x2 (when computer

●

supported CVT-RB or CVT-RB v2)

QHD (2560 x 1440) @60Hz x1 (when computer

●

supported CVT)

FHD (1920 x1080) @60Hz x2

●

User manual setting

●

DP-1/USB Type-C MFDP and HDMI share 26.25Gbps

4K (3840 x 2160) @60Hz x2 (when computer

●

supported CVT-RB or CVT-RB v2)

4K (3840 x 2160) @60Hz x1 (when computer

●

supported CVT)

QHD (2560 x 1440) @60Hz x2

●

FHD (1920 x1080) @60Hz x2

●

User manual setting

●

HDMI

and display congurations. Some resolutions may not be supported and so will be removed from the Windows Display
Control Panel.

NOTE:

Linux operating system is unable to physically turn-o built-in display, the external display numbers will be one
less than the display numbers listed in above tables.

If the Display Port Data Rate is HBR2, then, the maximum resolution that Linux supports is 8192 x 8192 (counted with
built-in display plus external display.

Resolution support is also dependent on the monitor’s Extended Display Identication Data (EDID) resolution.

NOTE:

Setup of External Monitors 18

Technical Specications

Topics:

LED Status Indicators

Docking Specications

Smart and Adaptive Power Delivery

LED Status Indicators

Power Adapter LED

Table 5. Power adapter LED indicator

State LED Behavior

Power Adapter is plugged into wall socket Solid White

8

Dock Status Indicator

Table 6. Dell universal dock UD22 LED indicators

State LED Behavior

Dock is receiving power from power adapter (without
computer connection)

Dock is receiving power from power adapter (with computer
connection)

Table 7. RJ45 LED Indicators

State LED Behavior

Ethernet Link Indicators Solid Green

Ethernet Activity Indicator Flash Amber

Solid Amber

Solid White

Docking Specications

Table 8. Docking specications

Features Specications

Standard USB 3.2 Gen2 Type-C

Video Ports

●

Two DisplayPort++ 1.2 ports

●

HDMI 2.0

●

USB 3.2 Gen2 Type-C with DisplayPort 1.4 Alt Mode

Technical Specications 19

Table 8. Docking specications (continued)

Features Specications

Network Port

USB Ports Front:

DC-in Port 7.4 mm DC-in port

USB Type-C Cable Length 0.8 m

Power Delivery 96 W to system with 130 W AC-adapter via PowerDelivery 3.0

Supported Operating System

●

RJ45 Ethernet port

●

Support Wake On LAN from S3 (sleep mode) and S0iX (modern standby) sleep state with

select Dell systems. See platform setup guide for more details.

●

Support MAC Address Pass-Through with select Dell systems. See platform setup guide for

more details.

NOTE:

Wake On LAN function is supported on computer with Windows
operating system only

●

USB 3.2 Gen 2 port, support max. 0.9 A @ 5 V (4.5 W)

●

USB 3.2 Gen 2 port with PowerShare and BC 1.2, support max. 2 A @ 5 V (10 W)

●

USB 3.2 Gen 2 Type-C port with PowerShare and BC 1.2

● Support max. 3 A @ 5 V (15 W), when rear USB Type-C not connected to device

● Support max. 1.5 A @ 5 V (7.5 W), when rear USB Type-C connected to device
Rear:

●

USB 3.2 Gen 2 port, support max. 0.9 A @ 5 V (4.5 W)

●

USB 3.2 Gen 2 Type-C port with DisplayPort 1.4 Alt Mode, support max. 1.5 A @ 5 V (7.5 W)

●

Windows: Windows 10/11

●

Linux-Ubuntu: Recommend 20.04/21.10 and afterwards

●

Mac OS: Recommend 12.2.1 and afterwards

●

Chrome OS R100 and afterwards

Table 9. Environment specications

Features Specications

Temperature Range

Relative Humidity

●

Operating: 0°C–35°C (32°F–95°F)

●

Non-operating: -20°C to 60°C (-4°F to 140°F)

●

Operating: 10% to 80% (non-condensing)

●

Non-operating: 5% to 90% (non-condensing)

Dimension 166 mm x 76 mm x 32 mm (6.53 inch x 2.99 inch x 1.26 inch)

Weight 416 g (0.92 lb)

VESA Mounting options Yes—Two Φ4 mm (M4 x 0.7 screws), 100 mm x 100 mm VESA mounting holes

Supported Operating System

●

Windows: Windows 7/8/10/11

●

Linux-Ubuntu: Recommend 20.04/21.10

●

Mac OS: Recommend 12.2.1

●

Chrome OS R100 and afterwards

Table 10. Power adapter specications

AC Adapter Specications 130 W

Input voltage 100 to 240 VAC

Input current (max) 2.5 A / 1.8 A

Input frequency 50 to 60 Hz

Output current 6.67 A (continuous)

Rated output voltage 19.5 VDC

Weight (lb) 0.94

Weight (g) 425

Dimensions (in.) 1.0 x 3.0 x 6.1

Dimensions (mm) 25.4 x 76.2 x 154.7

Temperature range operating 0°C to 40°C

32°F to 104°F

Storage -40°C to 70°C

-40°F to 158°F

Technical Specications 20

Smart and Adaptive Power Delivery

Dell Universal Dock UD22’s maximum power delivery to your computer is 96 W (4.8 A @ 20 V).
The dock detects the USB ports connected and the power consumption of the dock itself to dynamically delivery power to your
computer for power balancing.

Table 11. Typical dock loading and smart/adaptive power delivery to computer

Display Loading USB Port and Ethernet Loading Adaptive Power Delivery to Computer

N/A N/A Maximum. 96 W

USB

2* displays @4K/60Hz

3* displays @ 4K/60Hz
(DP x2 + HDMI x1)

4* displays @4K/60Hz

●

x1: 4.5W (for keyboard/mouse/USB

thumb drives/USB SSD drive)

●

USB Type-Cx1: 7.5W (for keyboards/mouse/USB

thumb drives/USB SSD drive)

USB

●

with BC1.2 x1: 10W (for USB HDD for USB

HDD drives/mobile phones)

●

RJ45 Ethernet: 1Gbps full active (for HD streaming

play/download)

USB

●

x3:13.5W (for keyboards/mice/USB

thumb drives/USB SSD drives)

●

USB Type-Cx2: 15W (for USB dock/USB HDD drives/

mobile phones)

USB

●

with BC1.2x1: 10W (for USB HDD for USB

HDD drive/mobile phone)

●

RJ45 Ethernet: 1Gbps full active (for HD streaming

play/download)

USB

●

x3: 13.5W (for keyboards/mice/USB

thumb drives/USB SSD drives)

●

USB Type-Cx2: 15W (for USB dock/USB HDD drives/

mobile phones)

USB

●

with BC1.2 x1: 10W (for USB HDD for USB

HDD drive/mobile phone)

●

RJ45 Ethernet: 1Gbps full active (for HD streaming

play/download)

Maximum. 75 W

Maximum. 60 W

Maximum. 60 W

Technical Specications 21

9

Dell Universal Dock UD22 Firmware Update

Standalone Dock Firmware Update Utility

NOTE:

Dell Universal Dock UD22 Firmware Update Utility only supports system with Microsoft Windows
operating system. Information that is provided is for Microsoft Windows users running the executable tool.

Download the Dell Universal Dock UD22 rmware update utility from www.dell.com/support. Connect the dock to the system
and start the tool in administrative mode.

1. When execute the Firmware Update Utility, all necessary drivers for rmware update will be installed automatically.

2. The following Graphical User Interface (GUI) snapshot shows a scenario when application is run without a dock
connected to the system. Click Exit Button to close the application.

Dell Universal Dock UD22 Firmware Update 22

3. The following Graphical User Interface (GUI) snapshot shows a scenario when application is run with a dock connected to the system.

All rmware version in your Dell Universal Dock UD22 is up-to-date. You can click Exit button to close the FW Update Utility directly.

a)

b) When rmware update is available, click Upgrade button to update the dock rmware.

4. Wait for the rmware update to complete. The progress bar shows the percent completed and Installation time shows the
elapsed time.

Dell Universal Dock UD22 Firmware Update 23

5. When the rmware update is completed 100%, please hot-plug (un-plug and replug) AC power adapter from your Dell
Universal Dock UD22 to complete FW upgrade process.

6. The following Graphical User Interface (GUI) is displayed after hot-plug (un-plug and replug) of AC power adapter from your
Dell Universal Dock UD22 and rmware upgrade is successful. Click Exit button to close the application.

7. The following Graphical User Interface (GUI) is displayed when the utility is unable to update the latest rmware on your Dell
Universal Dock UD22. Click Upgrade button to try again.

For IT professionals and engineers, to get more information about the following technical topics, see the Dell Universal Dock UD22
Administrator's Guide:

●

Step-by-step stand-alone DFU (Dock Firmware Update) and driver update utilities.

Dell Universal Dock UD22 Firmware Update 24

10

Frequently Asked Questions

1. The fan is not working after connecting with the system.

●

The fan is triggered by temperature. The dock fan will not rotate until the dock is hot enough to trigger a thermal threshold.

●

Vice versa, if your dock is not cool enough, the fan will not stop even when you disconnect the dock from the system.

2. The dock does not work after high-speed fan noise.

●

When you hear a loud fan noise, it is warning you that the dock is in some kind of a hot condition. For example, the vent in
the dock may be blocked or the dock is working in a high working-temperature environment (> 35C), etc,. Please eliminate
these abnormal conditions from the dock. If you do not eliminate the abnormal condition, in a worst-case situation, the
dock will shut down through the over-temperature protection mechanism. Once this happens, please un-plug the USB
Type-C cable from the system and remove the dock’s power. Then wait 15 seconds and plug in the dock power to recover
the dock back online.

3. I hear a fan noise when I plug in the dock’s AC adapter.

●

When plugging in the AC adapter and powering on the docking station, the fan turns on for sometime and subsequently
powers down. This is by design and the docking station is working as expected.

4. I hear a loud fan noise. What’s wrong?

●

The fan is designed to run at ve dierent speeds based on the dock's activity level or work load. The fan usually runs at
the lowest speed setting until the dock reaches a thermal threshold due to the workload on it. The fan may then run at one
of its two high-speed settings as described in the table below:

State State name Fan speed (rpm)

0 Fan o 0

1 Fan minimum 3000

2 Fan low 3500

3 Fan medium 4200

4 Fan medium-high 4700

5 Fan high 5100

5. What is the charging station feature?

●

The Dell Universal Dock UD22 can charge your mobile or power bank even without being connected to the system. Just
make sure your dock is connected to external power. The dock fan will rotate automatically if the dock gets too warm. This
is normal working condition.

6. Why does the hardware installation window show up when I plug in a USB device to the docking stations ports?

●

When a new device is plugged in, the USB hub driver noties the Plug and Play (PnP) manager that a new device was
detected. The PnP manager queries the hub driver for all of the device's hardware IDs and then noties the Windows OS
that a new device needs to be installed. In this scenario, the user will see a hardware installation window.
For more details, See Microsoft articles.
https://msdn.microsoft.com/en-us/windows/hardware/drivers/install/step-1--the-new-device-is-identied
https://msdn.microsoft.com/en-us/windows/hardware/drivers/install/identiers-for-usb-devices

7. Why do the peripheral devices, which are connected to the dock station, become unresponsive after recovering
from a power loss?

●

Your Dell dock is designed to operate on AC power only and it does not support system power source back (powered by
system USB Type-C port). A power loss event will make all devices on the dock fail to work. Even when you restore the AC
power, the dock may still not function properly because the dock still needs to negotiate proper power contract with the
system's USB Type-C port and establish a system EC-to-dock EC connection.

Frequently Asked Questions 25

11

Troubleshooting the Dell Universal Dock UD22

Topics:

●

Symptoms and Solutions

Symptoms and Solutions

Table 12. Symptoms and solutions

Symptoms Suggested solutions

1. No video on the monitors that are attached to the
HDMI or DisplayPort (DP) port on the docking station.

2. The video on the attached monitor is distorted or
ickering.

●

Ensure that the latest BIOS and drivers for your system and

the docking station are installed on your system.

●

Ensure that your system is connected to the docking station
securely. Try to disconnect and reconnect the docking
station to the computer system.

●

Disconnect both ends of the video cable and check for
damaged/bent pins. Securely re-connect the cable to the
monitor and docking station.

●

Ensure the video cable HDMI, DisplayPort, or USB Type-C is
connected properly to the monitor and the docking station.
Ensure to select the correct video source on your monitor
(see your monitor’s documentation for more information
about changing the video source).

●

Check the resolution settings on your system. Your monitor
may support higher resolutions than what the docking
station can support. See the Display Resolution Table for more
information about maximum resolution capacity.

●

If your monitor is connected to the docking station, the video
output on your system may be disabled. You can enable the video
output using the Windows Control Panel or see the User Guide of
your system.

●

If only one monitor is shown, while the other is not, go to Windows
Display Properties, and under Multiple Displays,
select the output for the second monitor.

●

Using Intel graphics and using the system LCD, only two additional

displays can be supported.

●

For NVIDIA or AMD discrete graphics, the dock supports three

external displays plus the system LCD.

●

Try with a dierent monitor and cable that is known to be good, if
possible.

●

Reset the monitor to Factory Defaults. See the User Guide
of your monitor for more information about how to reset the
monitor to factory defaults.

●

Ensure that the video cable HDMI, DisplayPort, or USB Type-C is
connected securely to the monitor and the docking station.

●

Disconnect and reconnect the monitor/s from the docking
station.

●

First power o the docking station by disconnecting the
USB Type-C cable and then removing the power adapter from the
dock.

Troubleshooting the Dell Universal Dock UD22 26

Table 12. Symptoms and solutions (continued)

Symptoms Suggested solutions

Then, power on the docking station by connecting power
adapter to the dock before connecting the USB Type-C cable to
your system.

●

Undock and reboot the system if, the above steps do not work.

3. The video on the attached monitor is not displaying as an
Extended Monitor.

4. The USB ports are not functioning on the docking station.● Ensure that the latest BIOS and drivers for your system and the

5. The High-Bandwidth Digital Content Protection (HDCP)
content is not displayed on the attached monitor.

6. The LAN port is not functioning.

7. USB port has no function in a pre-OS environment.

●

Ensure that the Intel HD Graphics driver is installed in the Windows

Device Manager.

●

Ensure that the nVidia or AMD Graphics driver is installed in the

Windows Device Manager.

●

Open the Windows Display Properties and go to Multiple Displays

control to set the display to the extended mode.

docking station are installed on your system.

●

If your BIOS Setup has a USB Enabled/Disabled option, ensure it is set

to Enabled.

●

Verify if the device is detected in Windows Device Manager and that

the correct device drivers are installed.

●

Ensure that the docking station is connected securely to the computer
system. Try to disconnect and reconnect the docking station to the
system.

●

Check the USB ports. Try plugging the USB device into another port.

●

First power o the docking station by disconnecting the USB Type-C
cable and then removing the power adapter from the dock. Then,
power on the docking station by connecting the power adapter to the
dock before connecting the USB Type-C cable to your system.

●

Dell Dock supports HDCP up to HDCP 2.2.

1 . Dell Universal Dock UD22 only supports HDCP on
Intel CPU computer with Microsoft Windows operating system.

2. Dell Universal Dock UD22 supports HDCP 2.2/1.1 input but
HDCP 1.1 output on Intel CPU computer with Microsoft
Windows operating system.

●

Ensure that the latest BIOS and drivers for your system and the
docking station are installed on your system.

●

Ensure that the Synaptics (DisplayLink) Gigabit Ethernet
Controller is installed in the Windows Device Manager.
If your BIOS Setup has a LAN/GBE Enabled/Disabled option,
ensure it is set to Enabled.

●

Ensure that the Ethernet cable is connected securely on the
docking station and the hub/router/rewall.

●

Check the status LED of the Ethernet cable to conrm connectivity.

●

Re-connect both ends of the Ethernet cable if the LED is not lit.

●

First power o the docking station by disconnecting the USB Type-C
cable and then removing the power adapter from the dock. Then,
power on the docking station by connecting the power adapter
to the dock before connecting the USB Type-C cable to your system.

●

If your BIOS has an USB Conguration page, ensure that the

following options are checked:

1.Enable USB Boot Support

2.Enable External USB Port

Troubleshooting the Dell Universal Dock UD22 27

Table 12. Symptoms and solutions (continued)

Symptoms Suggested solutions

8. Displays have no function in a pre-OS environment.

●

Only DP1 (near HDMI port), HDMI, USB Type-C DisplayPort (MFDP)

are supported in pre-OS environment, DP2 are not supported.

●

Connect your monitor to DP1, HDMI, USB Type-C DisplayPort

(MFDP).

9. USB Boot does not function.

●

If your BIOS has an USB Conguration page, ensure that the

following options are checked:

1. Enable USB Boot Support

2. Enable External USB Port

10. AC Adapter is displayed as “Not Installed” in the Battery
Information page of the Dell BIOS Setup when the USB Type-C
cable is connected.

●

Ensure the Dell Universal Dock UD22 is connected properly to

its own adapter (130 W).

●

Ensure the LED of your Dell Universal Dock UD22 is Solid White.

●

Disconnect and re-connect the USB Type-C cable to your

system.

11. Alert message “You have attached an undersized power adapter
to your system” is displayed when the docking station is
connected to your computer.

●

Ensure that the docking station is connected properly to its own
power adapter. Computer requiring more than 130 W power input
must also be connected to their own power adapter for charging
and operating at full performance.

●

First power o the docking station by disconnecting the USB
Type-C cable and then removing power adapter from the dock.
Then, power on the docking station by connecting the power
adapter to the dock before connecting the USB Type-C cable to
your computer.

12. No external display, USB ports, Ethernet port have no function.● The docking station's USB Type-C cable has disconnected from the
system's USB ports. Reconnect the docking station's USB Type-C cable.

●

Undock and reboot the system if the above steps do not work.

13. When system or dock is moved the dock LED turns o.

●

Avoid moving the system/dock when the docking cable is

connected to the system.

Troubleshooting the Dell Universal Dock UD22 28

12

Getting Help

Topics:

●

Contacting Dell

Contacting Dell

Prerequisites

NOTE:

If you do not have an active internet connection, you can nd contact information on your purchase
invoice, packing slip, bill, or Dell product catalog.

About this task

Dell provides several online and telephone-based support and service options. Availability varies by country and product, and
some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues:

Steps

1. Go to Dell.com/support.

2. Select your support category.

3. Verify your country or region in the Choose a Country/Region drop-down list at the bottom of the page.

4. Select the appropriate service or support link based on your need.

Getting Help 29