Dell Inspiron 5570 Instruction Manual

Dell Precision 5570
External Display Connection Guide
Regulatory Model: P91F
Regulatory Type: P91F003
May 2022
Rev. A01

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.
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subsidiaries. Other 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 and contacting Dell................................................................................. 11
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 5570.
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.
1
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 a docking station on your
computer.
The following table summarizes the number of supported external displays:
Table 1. Display support (up to 4K/60 Hz)
Graphics card Supported external displays with
computer internal display on
Supported external displays with
computer internal display off
Intel UHD Graphics 3 4
Intel Iris Xe Graphics 3 4
NVIDIA RTX A1000 Laptop GPU (Video
signal through integrated GPU)
3 4
NVIDIA RTX A2000 Laptop GPU (Video
signal through integrated GPU)
3 4
Table 2. Display support (up to 8K/60 Hz)
Graphics card Supported external displays with
computer internal display on
Supported external displays with
computer internal display off
Intel UHD Graphics 1 1
Intel Iris Xe Graphics 1 1
NVIDIA RTX A1000 Laptop GPU (Video
signal through integrated GPU)
1 1
NVIDIA RTX A2000 Laptop GPU (Video
signal through integrated GPU)
1 1
Integrated graphics
Connecting external displays to Precision 5570
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.
2
6 Connect external displays

●Connect an external display directly to your computer by using a USB-C or Thunderbolt cable:
●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:
Connect external displays 7

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.
NOTE: The resolution, refresh rate, and maximum number of external monitors supported by the dock are dependent on
the compatibility between computer and dock.
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.
8Connect external displays

●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:
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.
No display or Blank screen after display Multi-Stream
Transport (MST) option is turned off via WD19/WD19TB/
WD19DC series docking stations
Question
When the display Multi-Stream Transport (MST) is turned OFF via WD19/WD19TB/WD19DC series docking stations, the display
does not power on or has a blank screen.
Cause
Multi-Stream Transport (MST) hub do not have any specific definition for handling or deal with this kind of DisplayPort
Configuration Data (DPCD) change (eg: MST/SST, DP1.4/1.2, HDR, FreeSync).
Workaround
●Hot-Plug Dock cable.
●Hot-Plug Display cable.
3
10 Troubleshooting