diff --git a/stepmania/src/arch/LowLevelWindow/LowLevelWindow_X11.cpp b/stepmania/src/arch/LowLevelWindow/LowLevelWindow_X11.cpp
index 0e49db96b9..79128668d9 100644
--- a/stepmania/src/arch/LowLevelWindow/LowLevelWindow_X11.cpp
+++ b/stepmania/src/arch/LowLevelWindow/LowLevelWindow_X11.cpp
@@ -178,6 +178,15 @@ CString LowLevelWindow_X11::TryVideoMode( VideoModeParams p, bool &bNewDeviceOut
 	return ""; // Success
 }
 
+bool LowLevelWindow_X11::IsSoftwareRenderer( CString &sError )
+{
+	if( glXIsDirect( g_X11Display, glXGetCurrentContext() ) )
+		return false;
+
+	sError = "Direct rendering is not available.";
+	return true;
+}
+
 void LowLevelWindow_X11::SwapBuffers()
 {
 	glXSwapBuffers( X11Helper::Dpy, X11Helper::Win );
diff --git a/stepmania/src/arch/LowLevelWindow/LowLevelWindow_X11.h b/stepmania/src/arch/LowLevelWindow/LowLevelWindow_X11.h
index 74c9ff551c..9f8eb7b7c6 100644
--- a/stepmania/src/arch/LowLevelWindow/LowLevelWindow_X11.h
+++ b/stepmania/src/arch/LowLevelWindow/LowLevelWindow_X11.h
@@ -13,6 +13,7 @@ public:
 
 	void *GetProcAddress(CString s);
 	CString TryVideoMode(VideoModeParams p, bool &bNewDeviceOut);
+	bool IsSoftwareRenderer( CString &sError );
 	void SwapBuffers();
 
 	VideoModeParams GetActualVideoModeParams() const { return CurrentParams; }