From cf71ac85266a3453f06a194142a570e6333449a6 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Wed, 1 Feb 2006 09:28:42 +0000
Subject: [PATCH] Eliminate duplicate modes with different refresh rates

---
 src/video/x11/SDL_x11modes.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/video/x11/SDL_x11modes.c b/src/video/x11/SDL_x11modes.c
index dbb293649..96338f15a 100644
--- a/src/video/x11/SDL_x11modes.c
+++ b/src/video/x11/SDL_x11modes.c
@@ -366,6 +366,13 @@ int X11_GetVideoModes(_THIS)
             for ( i=0; i<nmodes; ++i ) {
                 int w, h;
 
+		/* Eliminate duplicate modes with different refresh rates */
+		if ( i > 0 &&
+		     modes[i]->hdisplay == modes[i-1]->hdisplay &&
+		     modes[i]->vdisplay == modes[i-1]->vdisplay ) {
+			continue;
+		}
+
                 /* Check to see if we should add the screen size (Xinerama) */
                 w = modes[i]->hdisplay;
                 h = modes[i]->vdisplay;