Home / Device types / Trackball

Trackball diagnostics

Test what the browser can see. Know when it cannot.

Test buttons, pointer movement and scrolling separately to distinguish sensor/ball contamination, switches, connection and software settings.

Run these first

Relevant live checks

Mouse Button TestVerify left, right, middle, and extra mouse button events.

Right Click TestTest whether right-click events are received correctly.

Mouse Scroll Wheel TestVerify vertical and horizontal wheel events.

Double Click TestCheck intentional double-click timing and event detection.

First diagnostic sequence

Do the high-signal checks before risky changes

1
Clean the ball/sensor area according to manufacturer guidance
2
Test buttons and movement separately
3
Compare wired/wireless path if available

What DeviceOK/browser can help check

Observe pointer and button events
Test scroll events

What this browser page cannot prove

Measure ball bearings/sensor optics physically
Read proprietary DPI/profile memory