Gt9xx-1024x600 |work| Jun 2026

| Symptom | Likely Cause | Fix | | :--- | :--- | :--- | | | Power sequencing wrong | Check RESET pin; pull high after 50ms. | | Touch works but offset by 200px | OS scaling missing | Add touchscreen-size-x to DT. | | Spurious touches (ghost touches) | Noise on power line or ground loop | Add ferrite bead to VDD line; filter INT pin. | | Driver loads but no interrupt | GPIO mapping wrong | Check interrupt-parent and phandle . | | Only 1 touch works | Firmware limited to single-touch | Re-write config to enable 5 or 10 points. |

The 1024x600 resolution is the "WSVGA" standard, frequently chosen for its 17:10 aspect ratio. gt9xx-1024x600

: Common issues during setup include inverted X/Y axes or swapped coordinates. These are typically fixed by adjusting the touchscreen-inverted-x or touchscreen-swapped-x-y flags in the system configuration. | Symptom | Likely Cause | Fix |

The driver (often gt9xx.c ) handles interrupt signals from the panel and translates them into coordinate data for the OS. 2. Touch Calibration & Troubleshooting | | Driver loads but no interrupt |