Fix inabillity to display secure desktop even when runnig as system account

sunshine/platform/windows/display_base.cpp

@@ -4,12 +4,12 @@
 
 #include <codecvt>
 
+#include "display.h"
+#include "misc.h"
 #include "sunshine/config.h"
 #include "sunshine/main.h"
 #include "sunshine/platform/common.h"
 
-#include "display.h"
-
 namespace platf {
 using namespace std::literals;
 }
@@ -91,6 +91,9 @@ int display_base_t::init() {
   });
 */
 
+  // Ensure we can duplicate the current display
+  syncThreadDesktop();
+
   // Get rectangle of full desktop for absolute mouse coordinates
   env_width  = GetSystemMetrics(SM_CXVIRTUALSCREEN);
   env_height = GetSystemMetrics(SM_CYVIRTUALSCREEN);