Certain Ports Are Not Functional When Docked with Precision 7520 and 7720 UMA Graphics Configuration
Summary: This article provides information about some docking station ports not working on Precision 7520 and 7720 systems with an integrated Graphics (UMA) only configuration.
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This article is not tied to any specific product.
Not all product versions are identified in this article.
Symptoms
It may happen that some of the ports on a docking station do not work when docking with Precision 7520 and 7720.
Cause
This occurs because of a design limitation of the system if the integrated graphics are used. This only occurs on System with UMA Graphics without a discrete Graphics Option.
Figure 1: Label on the System with Docking Station Ports affected.
The label on the bottom cover illustrates the ports that do not work with the integrated graphics-only configuration.
Figure 1: Label on the System with Docking Station Ports affected.
Resolution
Try to only use the ports not marked above in Figure 1.
As a workaround, you should use Dell USB Type-C Docks like WD15 and TB16.
Affected Products
Precision 7520, Precision 7720Article Properties
Article Number: 000142291
Article Type: Solution
Last Modified: 15 Sept 2025
Version: 5
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