What troubleshooting step would help if a display cable is disconnecting frequently?

Choosing a connector with a locking mechanism is an effective troubleshooting step for frequent disconnections of a display cable. This type of connector is designed to securely hold the cable in place, preventing accidental disconnections caused by movement or vibrations. When a display cable frequently disconnects, it may indicate that the current connector is not gripping securely enough, leading to an unstable connection which can interrupt the video signal.

In contrast, upgrading the display driver or changing the monitor resolution would not address the physical connection issue at hand. These actions may improve performance or compatibility with certain configurations, but they do not resolve the underlying connectivity problem. Additionally, replacing the monitor can be a more inconvenient and costly solution, especially if the monitor is functioning well except for the cable issue. Therefore, opting for a connector designed with a locking mechanism directly addresses the root cause of the frequent disconnections.