diff --git a/src/common/EventHandlerSDL.cxx b/src/common/EventHandlerSDL.cxx
index 06fc8befb..9db111b02 100644
--- a/src/common/EventHandlerSDL.cxx
+++ b/src/common/EventHandlerSDL.cxx
@@ -49,6 +49,8 @@ EventHandlerSDL::EventHandlerSDL(OSystem& osystem)
 #endif
 
   SDL_SetHint(SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH, "1");
+  //SDL_SetHint(SDL_HINT_MOUSE_RELATIVE_SYSTEM_SCALE, "1");
+  //SDL_SetHint(SDL_HINT_MOUSE_RELATIVE_MODE_CENTER, "0");
 }
 
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diff --git a/src/common/FBBackendSDL.cxx b/src/common/FBBackendSDL.cxx
index f6e4de754..45626d569 100644
--- a/src/common/FBBackendSDL.cxx
+++ b/src/common/FBBackendSDL.cxx
@@ -524,6 +524,8 @@ void FBBackendSDL::grabMouse(bool grab)
   ASSERT_MAIN_THREAD;
 
   SDL_SetWindowMouseGrab(myWindow, grab);
+  SDL_SetHint(SDL_HINT_MOUSE_RELATIVE_SYSTEM_SCALE, grab ? "1" : "0");
+  SDL_SetWindowRelativeMouseMode(myWindow, grab);
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -