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My Controller Works In One USB Port But Not The Other Three
Almost certainly a USB hub or controller-chip issue on those rear ports, often a USB 3 port behind an internal hub that a low-power HID device…
Graham Norton-SmithVerified Gamepad Tester team member
Retro And Adapter Hardware Specialist at Gamepad Tester
Gets legacy controllers and USB adapters recognised properly by modern browsers.
Graham works on legacy input hardware. Older controllers reach a browser through a USB adapter, and the adapter decides what the browser sees: button order changes, axes arrive as buttons, D-pads report as hats, and two adapters for the same console can behave nothing alike. He maps how the common adapters present themselves so that a player with a SNES or Sega pad can read a test result correctly instead of concluding their controller is broken.
On Gamepad Tester he answers the adapter and legacy hardware questions.
- Experience
- 17+ years
- Hands-On
- Documents how common USB controller adapters present legacy pads to a browser, adapter by adapter.
- Answers On Gamepad Tester
- 1
What Graham Works On
USB controller adapterslegacy console padsHID button and axis mappingD-pad and hat switches
Tests Graham Looks After
Gamepad TesterLive test of every button, stick, trigger and axis on any controllerFree · Open tool Button TestCheck each button for response, double presses and dead inputsFree · Open tool
Questions Answered By Graham
The Team Behind These Answers
Calder WrightFront-End Web Architect And Gamepad API Lead
Elena RostovaHardware Diagnostics Engineer
Garrett LindsayHardware Reviewer And Input Performance Specialist
Venom’s Tech (Abhishek)Peripheral Reviewer And Tech Journalist
Chloe HendersonHall Effect And Thumbstick Analyst
Thiago AlvesHardware Repair Educator
Devon MillerLow Latency And Input Timing Engineer
Liam DaviesBluetooth And Wireless Test EngineerEach answer is written by the specialist who owns that part of the hardware, tested on a real controller, and checked by a second team member. How we verify answers