Dell Vostro 5480 Instruction Manual

Precision 5480

External Display Connection Guide

Regulatory Model: P154G

Regulatory Type: P154G003

April 2023

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.

subsidiaries. Other trademarks may be trademarks of their respective owners.

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

Check the graphics options on your computer............................................................................................................ 4

Turn off the internal display.............................................................................................................................................. 4

Chapter 2: Connect displays..........................................................................................................5

Supported display................................................................................................................................................................ 5

Chapter 3: Troubleshooting........................................................................................................... 7

Chapter 4: Getting help and contacting Dell.................................................................................. 8

Contents

Contents 3

Before you begin

You can connect up to four 4K external displays or one 8K and above display using the four Thunderbolt 4 on your Precision

5480.

Total number of displays supported:

●Four 4K external displays: 4 ports (Thunderbolt 4)

●One 8K

Before you begin, ensure that you:

●Check the graphics options on your computer

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:

●The integrated graphics card can support a maximum of 4 displays.

●The hybrid graphics card can support a maximum of 4 displays.

NOTE:

●Dell Docking Station—WD19DCs display behavior follows the host the Thunderbolt 4 (USB Type-C) port.

●The HDMI 2.1 port and MFDC (MFDP) Type-C port on the WD19DCs docking station cannot support dual monitors

simultaneously.

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 XeGraphics (Integrated graphics)

●NVIDIA RTX A1000 laptop GPU (Hybrid graphics)

●NVIDIA RTX 2000 Ada Generation laptop GPU (Hybrid graphics)

●NVIDIA RTX 3000 Ada Generation laptop GPU (Hybrid graphics)

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 LCD display of your computer by using the Intel HD Graphics Command Center.

To turn off the 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.

4 Before you begin

Connect displays

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

Type-C) ports, HDMI port, Mini DisplayPort on your computer using:

●Thunderbolt 4 cables, adapters or docking stations

●USB Type-C cables. adapters or docking stations

●HDMI cables or adapters

●Mini DisplayPort cables or adapters

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

DisplayPort or HDMI cables for 4K and above resolution.

Supported display

Table 1. Supported display via host display port under different modes

Graphics card mode Connect to external displays

One external display Two external displays Three external

displays

Four external

displays

UMA Thunderbolt 4: 7680 x

4320 @ 60 Hz

Thunderbolt 4:

●7680 x 4320 @ 60

Thunderbolt 4:

●7680 x 4320 @ 60

●4096 x 2304 @ 60

Thunderbolt 4:

●4096 x 2304 @ 60

Hybrid mode Thunderbolt 4: 7680 x

4320 @ 60 Hz

Thunderbolt 4:

●7680 x 4320 @ 60

Thunderbolt 4:

●7680 x 4320 @ 60

●4096 x 2304 @ 60

Thunderbolt 4:

●4096 x 2304 @ 60

*When connecting via docking station, additional external displays can be connected under Hybrid mode (with Internal Display

Off).

Table 2. Supported display via docking station under Hybrid mode

Hybrid mode

TBT Dock Type-C TBT + DP + DP + HDMI/MFDP: 4k@60 Hz + 2k@60

Hz*3

●Up to 3 if internal display

●Up to 4 if internal display

off

●Connect either HDMI

or MFDP only, do not

connect both of them

Connect displays 5

Table 2. Supported display via docking station under Hybrid mode (continued)

Hybrid mode

Single Cable Dock ●DP + DP + HDMI : FHD@60 Hz*3

●DP + DP + MFDP : FHD@60 Hz*3

Dual Cable Dock ●DP + DP + HDMI: 2k@60 Hz*3

●DP + DP + MFDP: 2k@60 Hz*3

6 Connect displays

Troubleshooting

Question

When I connect an 8K display using the USB Type-C to DisplayPort adapter, the monitor resolution is 4k.

Cause

This may be because of incorrect settings in the BIOS.

Workaround

Ensure BIOS setting is special graphics mode.

For more information about accessing and configuring the BIOS, see the computer's Service Manual at www.dell.com/support.

Question

When I connect an 8K display using the USB Type-C to DisplayPort adapter, the display resolution can reach to 8K, but refresh

rate cannot reach to 60Hz.

Workaround

Connect the 8K display with the dual USB Type-C to DisplayPort adapter or one USB Type-C to DisplayPort adapter + one Mini

DisplayPort.

Connect the 8K display with dual cable WD19DCs dock dual DisplayPort or Host dual USB Type-C to DisplayPort adapter or

Host DisplayPort adapter + one Mini DisplayPort.

Troubleshooting 7

Getting help and contacting Dell

Self-help resources

You can get information and help on Dell products and services using these self-help resources:

Table 3. Self-help resources

Self-help resources Resource location

Information about Dell products and services www.dell.com

My Dell app

Tips

Contact Support In Windows search, type Contact Support, and press

Enter.

Online help for operating system www.dell.com/support/windows

Access top solutions, diagnostics, drivers and downloads, and

learn more about your computer through videos, manuals and

documents.

Your Dell computer is uniquely identified by a Service Tag or

Express Service Code. To view relevant support resources for

your Dell computer, enter the Service Tag or Express Service

Code at www.dell.com/support.

For more information on how to find the Service Tag for your

computer, see Locate the Service Tag on your computer.

Dell knowledge base articles for a variety of computer

concerns

1. Go to www.dell.com/support.

2. On the menu bar at the top of the Support page, select

Support > Knowledge Base.

3. In the Search field on the Knowledge Base page, type the

keyword, topic, or model number, and then click or tap the

search icon to view the related articles.

Contacting Dell

To contact Dell for sales, technical support, or customer service issues, see www.dell.com/contactdell.

NOTE: Availability varies by country/region and product, and some services may not be available in your country/region.

NOTE: If you do not have an active Internet connection, you can find contact information about your purchase invoice,

packing slip, bill, or Dell product catalog.

8 Getting help and contacting Dell

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