DIAGNOSIS The touch function requires a separate driver to be installed on your computer, and not all InnoView models have touch capability. First, verify your specific model is advertised as a touchscreen.
FIX If it is a touch model, you must install the touch driver from InnoView's official website. Download the driver package, run the installer, and restart your computer. The touch often won't work until this is done, even though the display will.
IF THAT DIDN'T WORK After driver install, check your device's touchscreen settings. In Windows, search "Calibrate the screen for pen or touch." Also, ensure you're connected via USB-C, as touch data typically doesn't travel over HDMI.
HEADS UP The touchscreen is designed for basic navigation, not high-precision work. It can feel less responsive than a premium tablet, especially if your computer is under heavy load.