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Redo the patch for Xorg 1.5. The patch is helpful only for nv driver.

--- hw/xfree86/modes/xf86EdidModes.c.orig	Fri Dec  5 15:42:03 2008
+++ hw/xfree86/modes/xf86EdidModes.c		Fri Dec 12 15:40:54 2008
@@ -622,6 +622,20 @@
                                              &det_mon->section.d_timings,
 					     preferred,
 					     quirks);
+
+	    if (Mode && (DDC->features.input_type == 0) &&
+            	(((Mode->HDisplay * 5 / 4) & ~0x07) > Mode->HTotal)) {
+		struct detailed_timings *dt = &DDC->det_mon[i].section.d_timings;
+		DisplayModeRec *cvtmode;
+
+		cvtmode = xf86CVTMode(dt->h_active, dt->v_active,
+                                (double) xf86ModeVRefresh(Mode), TRUE, FALSE);
+		memcpy(Mode, cvtmode, sizeof(DisplayModeRec));
+		Mode->type       = M_T_DRIVER;
+    		if (preferred)
+		    Mode->type |= M_T_PREFERRED;
+	    }
+		
 	    preferred = FALSE;
             Modes = xf86ModesAdd(Modes, Mode);
             break;