From b0a80e17f6386ccd329d61a0845e89e59a9ff9eb Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Sat, 13 Dec 2008 13:30:11 +0000
Subject: [PATCH] Whoops, the X11 driver doesn't support fullscreen modes (yet)

---
 src/video/SDL_video.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/video/SDL_video.c b/src/video/SDL_video.c
index 50527a38b..cebf089e4 100644
--- a/src/video/SDL_video.c
+++ b/src/video/SDL_video.c
@@ -658,7 +658,10 @@ SDL_SetFullscreenDisplayMode(const SDL_DisplayMode * mode)
     if (!mode) {
         mode = &display->desktop_mode;
     }
-    SDL_GetClosestDisplayMode(mode, &fullscreen_mode);
+    if (!SDL_GetClosestDisplayMode(mode, &fullscreen_mode)) {
+        SDL_SetError("Couldn't find display mode match");
+        return -1;
+    }
     if (SDL_memcmp
         (&fullscreen_mode, &display->fullscreen_mode,
          sizeof(fullscreen_mode)) == 0) {