Yes, monitors or adapters can cause laptop ports to malfunction.
Yes, monitors or adapters can cause laptop ports to malfunction.
I own a Lenovo Yoga C940 with two Thundebolt Type C ports. I connect one for linking an external monitor (Dell P2419h) using a Lenovo USB-C 3-in-1 Travel Hub via HDMI cable. After connecting my laptop to an old monitor with VGA input, it worked initially. However, the next day it stopped functioning completely, and I couldn’t charge the laptop through that port. After a week, it recovered. I then tried using another old monitor on the same port with the same setup, but the issue persisted. Eventually, the port returned after about four to five days. I’m wondering if the USB-C hub is responsible for this problem. I spoke to Lenovo support previously, but the port revived itself when technicians inspected the laptop. Now it seems active again. What should I do? Should I replace the hub or avoid using old monitors and VGA connections?
Windows OS?
Check the laptop's Reliability History. It shows error codes, warnings, and events in a timeline.
Search for patterns that align with times when the port stopped working and then resumed.
A year might be too far, but a month ago’s results could still be useful.
I must be after 2nd October (not even month back!). But nothing serious is there in Reliability History: