Extra Backlight control

app/HardwareControl.cs

@@ -124,6 +124,15 @@ public static class HardwareControl
         return false;
     }
 
+
+    public static NvidiaGpuControl? GetNvidiaGpuControl()
+    {
+        if ((bool)GpuControl?.IsNvidia)
+            return (NvidiaGpuControl)GpuControl;
+        else
+            return null;
+    }
+
     public static void RecreateGpuControlWithDelay(int delay = 3)
     {
         // Re-enabling the discrete GPU takes a bit of time,