I am running the sample code to change the monitor brightness using the I2C bus, but am failing at one of the first hurdles.
NvAPI_Initialize returns OK
NvAPI_EnumPhysicalGPUs returns OK
NvAPI_EnumNvidiaDisplayHandle returns NVAPI_NVIDIA_DEVICE_NOT_FOUND (-6)
What would be the cause of this?
I am running this on a laptop in case that matters.