Try load XNVCtrl as "libXNVCtrl.so.0"
Seems not all distro symlink also to libXNVCtrl.so
typedef std::unordered_map<std::string, std::string> string_map;
-libnvctrl_loader nvctrl("libXNVCtrl.so");
+libnvctrl_loader nvctrl("libXNVCtrl.so.0");
struct nvctrlInfo nvctrl_info;
bool nvctrlSuccess = false;
