diff --git a/include/wx/unix/displayx11.h b/include/wx/unix/displayx11.h
index 969049129f..4bb0cdc8f4 100644
--- a/include/wx/unix/displayx11.h
+++ b/include/wx/unix/displayx11.h
@@ -31,6 +31,12 @@ class WXDLLEXPORT wxDisplay : public wxDisplayBase
     virtual wxRect GetGeometry() const;
     virtual int GetDepth() const;
     virtual wxString GetName() const;
+    virtual wxArrayVideoModes
+        GetModes(const wxVideoMode& mode = wxDefaultVideoMode) const;
+
+    virtual wxVideoMode GetCurrentMode() const;
+
+    virtual bool ChangeMode(const wxVideoMode& mode = wxDefaultVideoMode);
 
     ~wxDisplay();
 
diff --git a/src/unix/displayx11.cpp b/src/unix/displayx11.cpp
index 20cd747e13..ae0a57d139 100644
--- a/src/unix/displayx11.cpp
+++ b/src/unix/displayx11.cpp
@@ -101,7 +101,7 @@ int wxDisplayBase::GetFromPoint(const wxPoint &p)
         return 0;
     }
 
-    return -1
+    return -1;
   }
 }
 
@@ -147,5 +147,23 @@ wxString wxDisplay::GetName() const
   return wxEmptyString;
 }
 
+ wxArrayVideoModes
+    wxDisplay::GetModes(const wxVideoMode& mode) const
+{
+    // Not implemented
+    return wxArrayVideoModes();
+}
+
+wxVideoMode wxDisplay::GetCurrentMode() const
+{
+    // Not implemented
+    return wxVideoMode();
+}
+
+bool wxDisplay::ChangeMode(const wxVideoMode& mode)
+{
+    // Not implemented
+    return false;
+}
 #endif /* wxUSE_DISPLAY */