Index: VirtualBox-6.1.4/src/VBox/Additions/x11/VBoxClient/display-svga-x11.cpp
===================================================================
--- VirtualBox-6.1.4.orig/src/VBox/Additions/x11/VBoxClient/display-svga-x11.cpp
+++ VirtualBox-6.1.4/src/VBox/Additions/x11/VBoxClient/display-svga-x11.cpp
@@ -100,16 +100,19 @@ static void x11Connect(struct X11CONTEXT
     {
         XCloseDisplay(pContext->pDisplay);
         pContext->pDisplay = NULL;
+        return;
     }
     if (!XRRQueryExtension(pContext->pDisplay, &pContext->hRandREventBase, &pContext->hRandRErrorBase))
     {
         XCloseDisplay(pContext->pDisplay);
         pContext->pDisplay = NULL;
+        return;
     }
     if (!XRRQueryVersion(pContext->pDisplay, &pContext->hRandRMajor, &pContext->hRandRMinor))
     {
         XCloseDisplay(pContext->pDisplay);
         pContext->pDisplay = NULL;
+        return;
     }
     pContext->rootWindow = DefaultRootWindow(pContext->pDisplay);
 }
Index: VirtualBox-6.1.4/src/VBox/Additions/x11/VBoxClient/clipboard.cpp
===================================================================
--- VirtualBox-6.1.4.orig/src/VBox/Additions/x11/VBoxClient/clipboard.cpp
+++ VirtualBox-6.1.4/src/VBox/Additions/x11/VBoxClient/clipboard.cpp
@@ -215,7 +215,6 @@ DECLCALLBACK(void) ShClX11RequestFromX11
  *
  * @returns VBox status code.
  */
-#if 0
 static int vboxClipboardConnect(void)
 {
     LogFlowFuncEnter();
@@ -245,7 +244,6 @@ static int vboxClipboardConnect(void)
     LogFlowFuncLeaveRC(rc);
     return rc;
 }
-#endif
 
 /**
  * The main loop of our clipboard reader.
@@ -469,7 +467,7 @@ static int run(struct VBCLSERVICE **ppIn
     RT_NOREF(ppInterface, fDaemonised);
 
     /* Initialise the guest library. */
-    int rc = 0; //vboxClipboardConnect();
+    int rc = vboxClipboardConnect();
     if (RT_SUCCESS(rc))
     {
 #ifdef VBOX_WITH_SHARED_CLIPBOARD_FUSE
@@ -477,9 +475,9 @@ static int run(struct VBCLSERVICE **ppIn
         if (RT_SUCCESS(rc))
         {
 #endif
-            RTThreadSleep(60 * 1000);
+            // RTThreadSleep(60 * 1000);
 
-            //rc = vboxClipboardMain();
+            rc = vboxClipboardMain();
 
 #ifdef VBOX_WITH_SHARED_CLIPBOARD_FUSE
             int rc2 = vboxClipboardFUSEStop();