Dell Precision 7550 Connection Guide

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 or discrete 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 WD19DC dock dual DisplayPort or Host dual USB Type-C to DisplayPort adapter or Host
DisplayPort adapter + one Mini DisplayPort.
3
Troubleshooting 9

Dell Precision 7550 Specifications

General

Brand	Dell
Model	Precision 7550
Category	Laptop
Language	English