Dell Vostro 5560 Instruction Manual

Dell Precision 5560

External Display Connection Guide

Regulatory Model: P91F

Regulatory Type: P91F001

May 2021

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.

trademarks may be trademarks of their respective owners.

Chapter 1: Before you begin.......................................................................................................... 4

Modes of connection.......................................................................................................................................................... 4

Turn off the computer display..........................................................................................................................................5

Chapter 2: Connect external displays............................................................................................ 6

Integrated graphics............................................................................................................................................................. 6

Chapter 3: Troubleshooting......................................................................................................... 10

Chapter 4: Getting help............................................................................................................... 12

Contacting Dell................................................................................................................................................................... 12

Contents

Contents 3

Before you begin

You can connect up to three 4K external displays or one 5K, or one 8K or higher displays using the USB-C ports available on

your Precision 5560.

Before you begin, ensure that you check the ports available on your external displays and decide on the modes of connections.

NOTE: Regardless of a Discrete Graphics Controller (dGPU) on some models, all external displays are controlled by the

Integrated graphics controller (iGPU).

Modes of connection

Depending on the connectors available on your external display, you can connect the displays to the Thunderbolt 4 USB-C port

on your computer using:

●Thunderbolt 4 cables, adapters or docking stations

●USB-C cables, adapters or docking stations

NOTE: To experience the full resolution supported by your external displays, use appropriate cables. For example, use

DisplayPort or HDMI cables for 4K and above resolution.

NOTE: USB-C or Thunderbolt docking stations can be used to connect external displays to the computer using a single

USB-C cable, while charging the computer. For more information about the types of docking stations available from Dell,

see the knowledge base article 000124295 at www.dell.com/support.

NOTE: USB-C adapters can also be used to connect external displays to the computer, though these do not allow power

charging at the same time. For more information about the types of USB-C adapters available from Dell, see the knowledge

base article 000125728 at www.dell.com/support.

USB-C and Thunderbolt 4 USB-C ports available on your computer:

NOTE: When connecting a display using an adapter or docking station, it is recommended that you connect the display to

the docking station first and then connect the docking station to the Thunderbolt 4 USB-C port on your computer.

4 Before you begin

Turn off the computer display

There may be instances where you may want to turn off the computer's display to connect more external displays.

You can turn off the display of your computer by using the Intel HD Graphics Command Center.

NOTE: Connect and configure at least one external display before disabling the computer display.

To turn off the computer's display:

1. In the Windows search bar, type Intel Graphics Command Center and press <Enter>.

2. Accept the Intel Graphics Command Center software licence agreement.

3. On the Intel Graphics Command Center window, click Display. The list of active displays is listed under the Connected

Displays section.

4. Click the ellipsis (...) in the top-right corner of your primary display, then click Extend > Display 2.

5. Click the ellipsis (...) in the top-right corner of display 2, then click Make Display Primary.

6. Click the ellipsis (...) in the top-right corner of your computer's display, then click Disable.

Before you begin 5

Connect external displays

You can connect up to three external displays to the USB-C ports or up to four external displays using the a docking station on

your computer.

Integrated graphics

Connecting external displays to Precision 5560

NOTE: When connecting a display using an adapter or docking station, it is recommended that you connect the display to

the docking station first and then connect the docking station to the USB-C port on your computer.

With the computer display turned on

You can connect up to three external displays directly to USB-C ports.

●Connect an external display directly to your computer by using a USB-C or Thunderbolt cable:

6 Connect external displays

●Connect an external display using a USB-C to Thunderbolt/HDMI/DisplayPort adapter:

●Connect up to three external displays using a USB-C docking station or USB-C to Thunderbolt/HDMI/DisplayPort adapter:

With the computer display turned off

NOTE: Ensure that you turn off your computer's display before connecting the external displays. For more information, see

Turn off the computer display.

NOTE: Connect and configure at least one external display before disabling the computer internal display.

Connect external displays 7

You can connect up to three external displays directly to the Type-C ports on your computer or you can connect the displays to

the computer using the docking station.

●Connect three external displays directly to the two Type-C ports and the docking station:

●Connect up to four external displays directly to the WD19TB series docking station and than connecting the docking station

to the computer:

8Connect external displays

Connect external displays 9

Troubleshooting

8K displays flickering

Question

When I connect two 8K displays to both Thunderbolt ports on the left side or the right side of the computer, they flicker when

they run at a display rate of 60 Hz.

Cause

This may be because of interlacing or switching as the Thunderbolt controller has send only part of the data, where the other

one has to send the second part of the data synchronization may be a problem.

Workaround

Connect each 8K display to a Thunderbolt port on either side of the computer, for example, one 8K display to either Ports on

the left side, and the other to either Ports on the right side. After doing so, power the displays off and on again.

8K displays not displaying correctly

Question

When I connect the 8K display to the computer using a Thunderbolt docking station, it disrupts the display of my computer.

Cause

This may be because of a hardware limitation with the Thunderbolt docking station.

Workaround

Connect the 8K display directly to a Thunderbolt port on your computer. Power on the display and than turn off the power on

the display.

Daisy chain two 4K monitor via WD19TB series cannot

reach 4K resolution

Question

When two 4K display is connected by Daisy chain via WD19TB series docking station, it cannot reach resolution upto 4K *2 @60

Hz.

Cause

This is because currently Intel GFX driver disables Display Stream Compression (DSC) support.

Workaround

●Connect the two 4K displays by non-Daisy chain method.

●Adjust both the 4K displays refresh rate to 30 Hz.

10 Troubleshooting

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