Precision 3581

External Display Connection Guide

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

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

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

Contents

Chapter 1: Before you begin.....4
Check the graphics options on your computer.....4
Modes of connection.....4
Turn off the internal display.....5

Chapter 2: Connect external displays.....6
Integrated graphics.....6
Troubleshooting.....11

Chapter 3: Getting help and contacting Dell.....12

Before you begin

You can connect up to four 4K external displays or one 8K display using the Thunderbolt 4 (USB-C) ports and HDMI port available on your Precision 3581.

Before you begin, ensure that you:

• Check the graphics options on your computer.

• Check the ports available on your external displays and decide on the mode of connection.

Check the graphics options on your computer

The number of external displays that are supported depends on the type of graphics card available on your computer.

For more information about the graphics card available on your computer, run Dell SupportAssist on your computer, or scan your hardware at www.dell.com/support.

The following are the graphic options that may be installed in your computer:

• Intel Iris Xe Graphics (Integrated graphics)

• Intel UHD Graphics (Integrated graphics)

NVIDIA RTX A500 (Discrete graphics)

NVIDIA RTX A1000 (Discrete graphics)

NVIDIA RTX 2000 Ada Generation

Modes of connection

Depending on the connectors available on your external display, you can connect the displays to the Thunderbolt 4 (USB-C) ports or HDMI port on your computer using:

HDMI cable

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 simultaneously. For more information about the types of USB-C adapters available from Dell, see the knowledge base article 000125728 at www.dell.com/support.

These are the Thunderbolt 4 (USB-C) ports and HDMI port available on your computer:

NOTE: The devices connected to the ports on the left side of the computer have priority over the ports on the right. While connecting external displays, it is recommended that you connect the displays to the left ports.

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

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NOTE: When connecting a display indirectly using an adapter or docking station, it is recommended that you connect the display to the docking station first, then connect the docking station to the Thunderbolt 4 (USB-C) port on your computer.

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Turn off the internal display

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

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

To turn off the computer's display:

1. In the Windows