Mac mini M4 case: wired mouse stutter and keyboard drops
A is showing random problems with a wired Dell mouse and wired Dell keyboard. The mouse suddenly moves in a jumpy or shaky way, and the keyboard sometimes stops responding for a few seconds. The problem happens at random times, not only during heavy work.
Restarting the Mac usually fixes it for a while, but the issue later returns. The Mac is running the latest macOS, and reconnecting the devices or trying different USB ports has not fixed it. An is also connected for development work, but it is not yet clear whether that device is involved.
Possible causes include a faulty , a macOS update problem, a conflict with an or , or failing mouse and keyboard . The next planned checks are to try another mouse and keyboard and unplug all other external USB devices to see whether one of them is causing a conflict.
Key points
- A wired Dell mouse on a starts moving in a jumpy way at random times.
- A wired Dell keyboard sometimes stops responding for a few seconds.
- Restarting helps only temporarily.
- Changing USB ports and reconnecting devices has not solved the issue.
- The next useful test is to remove other USB devices and try different mouse and keyboard .