S2722DC and S2722QC Monitor Downstream USB Ports are Nonfunctional
Summary: Resolve nonfunctional USB ports on Dell S2722DC/S2722QC monitors. Update firmware and follow our troubleshooting guide to ensure proper USB connectivity
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Symptoms
S2722DC and S2722QC monitor users may report that their downstream USB ports do not function as expected. Ports 7 and 9 are the downstream ports.
Figure 1. S2722DC S2722QC port locations
Cause
Ports 7 and 9 require a USB Type-C cable (included) be connected to the USB Type-C upstream port (Port 5) on the monitor from your computer. This enables communication on ports 7 and 9 between your connected USB devices and your computer.
| Port | Description | USB |
| 5 | USB Type-C upstream port | Connect the USB Type-C cable that came with your monitor to the computer. |
| 7 | USB Type-A downstream port | Connect your USB device. |
| 9 | USB Type-A downstream port with Power Charging | Connect your USB device or charge your device. |
Resolution
Updating to firmware version M3B102 or later resolves the issue. To download and install the firmware reference Dell Knowledge Base article How to Download and Install Dell Drivers.
Note: Before running the firmware update, ensure that your computer is connected to the monitor through a USB-C cable or USB-A to USB-C cable.
Workaround:
- Connect USB Type C port 5 of monitor to USB-C port of computer (USB C to C cable is in box). If the user's computer does not have USB-C port, connect USB Type C port 5 of monitor to USB-A port of computer (USB C to A cable is purchased separately).
- Change the USB-C charging setting to Off in Off mode. Start by reinitializing the ports. Unplug the power cable and plug it back in to restart the monitor, or unplug the USB-C cable and plug it back in to reinitialize the port.
- To set USB-C charging to Off in Off mode, enter the on-screen display (OSD) menu and select Personalize, USB-C Charging, Off in Off Mode.
Figure 2. OSD Menu screen