1 files changed, 5 insertions, 0 deletions
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfiguration.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfiguration.java
index 109311123..575106555 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfiguration.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfiguration.java
@@ -207,6 +207,11 @@ public class X11GLXGraphicsConfiguration extends X11GraphicsConfiguration implem
   }
 
   // FBConfig
+    
+  static boolean GLXFBConfigIDValid(long display, int screen, int fbcfgid) {      
+    long fbcfg = X11GLXGraphicsConfiguration.glXFBConfigID2FBConfig(display, screen, fbcfgid);
+    return (0 != fbcfg) ? X11GLXGraphicsConfiguration.GLXFBConfigValid( display, fbcfg ) : false ;
+  }
 
   static boolean GLXFBConfigValid(long display, long fbcfg) {
     int[] tmp = new int[1];