diff --git a/hw/xfree86/modes/xf86EdidModes.c b/hw/xfree86/modes/xf86EdidModes.c
index 46cb6c4..7d9ba81 100644
--- a/hw/xfree86/modes/xf86EdidModes.c
+++ b/hw/xfree86/modes/xf86EdidModes.c
@@ -295,11 +295,11 @@ DDCGuessRangesFromModes(int scrnIndex, M
 
     /* set up the ranges for scanning through the modes */
     Monitor->nHsync = 1;
-    Monitor->hsync[0].lo = 1024.0;
+    Monitor->hsync[0].lo = 31.5;
     Monitor->hsync[0].hi = 0.0;
 
     Monitor->nVrefresh = 1;
-    Monitor->vrefresh[0].lo = 1024.0;
+    Monitor->vrefresh[0].lo = 50.0;
     Monitor->vrefresh[0].hi = 0.0;
 
     while (Mode) {