NVAPI_DEVICE_SWITCHING_NOT_ALLOWED

nvapi_sys::status

Constant NVAPI_DEVICE_SWITCHING_NOT_ALLOWED 

Source 
pub const NVAPI_DEVICE_SWITCHING_NOT_ALLOWED: NvAPI_Status = _; // -117i32
Expand description

Inhibit is ON due to one of the flags in NV_GPU_DISPLAY_CHANGE_INHIBIT or SLI active.