Article Number: 000189810
This issue is mostly noticed when the Dell monitor is connected to the computer using HDMI or DisplayPort cable.
Figure 1: Example of P2421D monitor with USB downstream ports on the bottom.
Figure 2: Example of P2421D monitor with USB downstream ports on the left side.
This issue is caused if the USB upstream cable is not connected between the Dell monitor and the computer.
The HDMI and DisplayPort cables support audio and video only. For data transmission, the USB upstream cable must be connected between the Dell monitor and the computer.
To ensure that the USB downstream ports on the Dell monitor work, connect the USB upstream cable between the Dell monitor and the computer.
Dell monitors have a USB Type-B or USB-C upstream port. A compatible USB upstream cable is shipped with the Dell monitor.
Figure 3: Example of P2421D monitor with USB Type-B upstream port.
Here are some recommended articles related to this topic that might be of interest to you.
Alienware and Dell Gaming Monitors, C Series, D Series, E Series, Legacy Monitors, P Series, S Series, SE Series, UltraSharp Premier (UP) Series, UltraSharp (U) Series
08 Feb 2024
6
Solution