diff --git a/cmake/checks.cmake b/cmake/checks.cmake
index d00d760a3..f5cabaa82 100644
--- a/cmake/checks.cmake
+++ b/cmake/checks.cmake
@@ -184,7 +184,7 @@ MACRO(CHECK_LIBRARIES)
 	ENDIF(ENET_FOUND)
 
 	# OpenGL
-	Find_Package(OpenGL)
+	Find_Package(OpenGL 2.1.0)
 
 	IF(OPENGL_FOUND)
 		SET(HAVE_LIBGL 1)
diff --git a/src/libs/tgfclient/guiscreen.cpp b/src/libs/tgfclient/guiscreen.cpp
index 4ae1a176e..67566d079 100644
--- a/src/libs/tgfclient/guiscreen.cpp
+++ b/src/libs/tgfclient/guiscreen.cpp
@@ -377,7 +377,11 @@ SDL_Surface* gfScrCreateWindow(int nWinWidth, int nWinHeight, int nTotalDepth,in
     }
 #endif
     /* Create OpenGL context */
-    GLContext = SDL_GL_CreateContext(GfuiWindow);
+    if (!(GLContext = SDL_GL_CreateContext(GfuiWindow)))
+    {
+        GfLogError("SDL_GL_CreateContext failed: %s\n", SDL_GetError());
+        return nullptr;
+    }
 
     // If specified, try best possible settings.
     PScreenSurface = SDL_CreateRGBSurface(0, nWinWidth, nWinHeight, nTotalDepth,
@@ -427,8 +431,8 @@ bool GfScrInitSDL2(int nWinWidth, int nWinHeight, int nFullScreen)
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
 #else
     // Version d'OpenGL
-    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
-    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_COMPATIBILITY);
 #endif
 
diff --git a/src/modules/graphic/osggraph/Car/OsgCar.cpp b/src/modules/graphic/osggraph/Car/OsgCar.cpp
index 1717ddc14..38330605f 100644
--- a/src/modules/graphic/osggraph/Car/OsgCar.cpp
+++ b/src/modules/graphic/osggraph/Car/OsgCar.cpp
@@ -644,7 +644,8 @@ osg::ref_ptr<osg::Node> SDCar::loadCar(tCarElt *Car, bool tracktype, bool subcat
     else
         this->reflectionMappingMethod = REFLECTIONMAPPING_OFF;
 
-    this->shader = new SDCarShader(car_shaded_body.get(), this);
+    if (_carShader > 0)
+        this->shader = new SDCarShader(car_shaded_body.get(), this);
 
     this->reflectionMapping = new SDReflectionMapping(this);
     this->setReflectionMap(this->reflectionMapping->getReflectionMap());