Start with a clean baseline
Use raw browser input to separate a physical control/event problem from game/app mapping. Test the exact failing key, button, axis or wheel action rather than a generic connected/not-connected state.
Live evidence
Relevant checks
Mouse Button TestVerify left, right, middle, and extra mouse button events.
→Unwanted Double-Click TestLook for unintended duplicate clicks from one physical press pattern.
→Mouse Scroll Wheel TestVerify vertical and horizontal wheel events.
→Mouse Polling Rate EstimateEstimate pointer event frequency in the browser.
→First sequence
Do the high-signal checks before risky changes
- 1
Run button and double-click tests
- 2
Test another USB port or receiver placement
- 3
Compare behavior with vendor software closed
Decision points
What the result should change
If raw events are correct herePrioritize app/game bindings, profiles, sensitivity or remapping.
If duplicates/drift reproduce hereThe symptom is independent of the affected app; compare connection mode and official calibration.
If the entire device freezes intermittentlyPrioritize receiver/cable/power/interference before a single switch or stick component.
Browser can help check
- Observe pointer/button events
- Measure event timing estimates
- Detect repeated double-click symptoms
Browser cannot prove
- Read true sensor DPI without calibration
- Inspect switch contacts
- Guarantee USB polling at kernel level
Repair boundary
Know when to stop browser troubleshooting
- Do not flash unofficial firmware to fix an input symptom.
- Browser polling estimates are not kernel-level USB analyzers.
- Cleaning/disassembly methods vary by manufacturer and switch design.
Used-device inspection
What to verify before paying or signing off a repair
- Every key/button and repeated-press behavior
- Stick/axis center, full range and dead zones where applicable
- Wireless receiver/Bluetooth plus wired mode if supported