Dell Precision 7550/7750 External Display Connection Guide Regulatory Model: P93F Regulatory Type: P93F001 February 2021 Rev.
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. © 2021 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Contents Chapter 1: Before you begin.......................................................................................................... 4 Check the graphics options on your computer............................................................................................................ 4 External display connection mode................................................................................................................................... 4 Hybrid Graphics mode...........................
1 Before you begin You can connect up to four 4K external displays or one 5K and above display using the Thunderbolt 3 (USB Type-C), HDMI, and Mini DisplayPort available on your Precision 7550/7750.
2. On the BIOS screen, select Video. 3. Select Switchable Graphics. 4. Select Enable Switchable Graphics. 5. Save changes and exit the computer's BIOS. For more information about accessing and configuring the BIOS, see the computer's Service Manual at www.dell.com/support. Table 1.
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 1. 2. 3. turn off the display: In the Windows search bar, type Intel Graphics Command Center and press . Accept the Intel Graphics Command Center software licence agreement. On the Intel Graphics Command Center window, click Display.
2 Connect displays Depending on the connectors available on your external display, you can connect the displays to the Thunderbolt 3 (USB Type-C) ports, HDMI port, Mini DisplayPort on your computer using: ● ● ● ● Thunderbolt 3 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.
Connecting multiple displays with Dell Docking Station—WD19DC 5 external displays example with the computer display off 8 Connect displays
3 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.
4 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 4. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com My Dell Tips Contact Support In Windows search, type Contact Support, and press Enter. Online help for operating system www.dell.com/support/windows www.dell.
