diff --git a/hw/xfree86/common/xf86Mode.c b/hw/xfree86/common/xf86Mode.c
index b892e3e6a..72dd1cabb 100644
--- a/hw/xfree86/common/xf86Mode.c
+++ b/hw/xfree86/common/xf86Mode.c
@@ -1758,7 +1758,8 @@ xf86ValidateModes(ScrnInfoPtr scrp, DisplayModePtr availModes,
 			 * horizontal timing parameters that CRTs may have
 			 * problems with.
 			 */
-			if ((q->type & M_T_DEFAULT) &&
+			if (!scrp->monitor->reducedblanking &&
+			    (q->type & M_T_DEFAULT) &&
 			    ((double)q->HTotal / (double)q->HDisplay) < 1.15)
 			    continue;
 
diff --git a/hw/xfree86/common/xf86str.h b/hw/xfree86/common/xf86str.h
index 0c33afba2..ae9d9aef4 100644
--- a/hw/xfree86/common/xf86str.h
+++ b/hw/xfree86/common/xf86str.h
@@ -119,14 +119,19 @@ typedef enum {
     MODE_ERROR	= -1	/* error condition */
 } ModeStatus;
 
+/*
+ * The mode sets are, from best to worst: USERDEF, DRIVER, and DEFAULT/BUILTIN.
+ * Preferred will bubble a mode to the top within a set.
+ */
 # define M_T_BUILTIN 0x01        /* built-in mode */
 # define M_T_CLOCK_C (0x02 | M_T_BUILTIN) /* built-in mode - configure clock */
 # define M_T_CRTC_C  (0x04 | M_T_BUILTIN) /* built-in mode - configure CRTC  */
 # define M_T_CLOCK_CRTC_C  (M_T_CLOCK_C | M_T_CRTC_C)
                                /* built-in mode - configure CRTC and clock */
+# define M_T_PREFERRED 0x08	/* preferred mode within a set */
 # define M_T_DEFAULT 0x10	/* (VESA) default modes */
 # define M_T_USERDEF 0x20	/* One of the modes from the config file */
-# define M_T_EDID    0x40	/* Mode from the EDID info from the monitor */
+# define M_T_DRIVER  0x40	/* Supplied by the driver (EDID, etc) */
 
 /* Video mode */
 typedef struct _DisplayModeRec {