I've been dealing with a frustrating issue where our laptops are making constant alerts as if a USB is being connected and disconnected. This seems to happen only under specific conditions: when the laptop is connected to a Dell docking station, when it falls asleep, and only if it's attached to multiple monitors. Interestingly, if it's connected to just one monitor, the problem doesn't occur. We've seen this on several Dell models including the Latitude 5430, 7680, and Precision series, but the Dell Pro Max 16 doesn't seem affected. We've already tried a few troubleshooting steps, like disabling USB Power Share and making sure the Windows OS is fully updated with the latest patches, along with updating the Dell BIOS. I'm reaching the point of feeling stuck—any other ideas on what I should check?
4 Answers
It sounds like it could be a power issue. Try connecting the power adapter and see if that changes anything. Also, check if the docks are rated for the same wattage as the original power adapter that came with the laptops; the 7680 typically uses a 240W charger, and sometimes docks can’t supply that. Don't forget to update the dock's firmware as well!
Running Dell Command updates could fix this! I had a similar problem with a few users, and one of the updates did the trick for them. Just make sure you have the dock connected while running the updates.
Have you considered the possibility of electrostatic discharge from chairs affecting your setup? It might sound strange, but there’s a history of monitors disconnecting due to static electricity from certain chair materials. You could try grounding the chair or using ferrite rings on your video cables. It's a long shot, but worth a try!
In my experience, this kind of issue is often related to dock firmware, power negotiation, or USB-C DP alt-mode issues. First, ensure the dock firmware is updated—Dell Command won't do it unless the dock is properly connected. Also, power mismatches can cause issues if the dock can't supply enough power, so try plugging in the original adapter alongside the dock to see if that resolves it. Lastly, check if you're using DisplayLink drivers; if so, updating or temporarily removing them might help.
Related Questions
Lenovo Thinkpad Stuck In Update Loop Install FilterDriverU2_Reload