------- radeon_driver.c -------
--- /tmp/geta20059	Thu Jun  8 22:09:43 2006
+++ /tmp/getb20059	Thu Jun  8 22:09:43 2006
@@ -132,7 +132,10 @@
 static void RADEONUpdatePanelSize(ScrnInfoPtr pScrn);
 static void RADEONSaveMemMapRegisters(ScrnInfoPtr pScrn, RADEONSavePtr save);
 static void RADEONAdjustMemMapRegisters(ScrnInfoPtr pScrn, RADEONSavePtr save);
+static xf86MonPtr RADEONProbeDDC(ScrnInfoPtr pScrn, int indx);
+static RADEONMonitorType RADEONCrtIsPhysicallyConnected(ScrnInfoPtr pScrn, int IsCrtDac);
 
+
 /* psuedo xinerama support */
 
 extern Bool 		RADEONnoPanoramiXExtension;
@@ -999,6 +1002,7 @@
     return (n + (d / 2)) / d;
 }
 
+
 static RADEONMonitorType RADEONDisplayDDCConnected(ScrnInfoPtr pScrn, RADEONDDCType DDCType, RADEONConnector* port)
 {
     RADEONInfoPtr info = RADEONPTR(pScrn);
@@ -1007,6 +1011,8 @@
     RADEONMonitorType MonType = MT_NONE;
     xf86MonPtr* MonInfo = &port->MonInfo;
     int i, j;
+    RADEONEntPtr pRADEONEnt  = RADEONEntPriv(pScrn);
+    int vbeProbe = FALSE;;
 
     DDCReg = info->DDCReg;
     switch(DDCType)
@@ -1025,7 +1031,10 @@
 	break;
     default:
 	info->DDCReg = DDCReg;
+	/* Do not return, can still try to get monitor type */
+	/*
 	return MT_NONE;
+	*/
     }
 
     /* Read and output monitor info using DDC2 over I2C bus */
@@ -1091,6 +1100,17 @@
     OUTREG(info->DDCReg, INREG(info->DDCReg) &
 	   ~(RADEON_GPIO_EN_0 | RADEON_GPIO_EN_1));
 
+    if ((!*MonInfo) && ((port == &pRADEONEnt->PortInfo[0]) ||
+	(RADEONCrtIsPhysicallyConnected(pScrn, !(pRADEONEnt->PortInfo[1].DACType)) 
+	== MT_CRT))) {
+	int entityIndex = pScrn->entityList[0];
+
+	usleep(15000);
+	vbeProbe = TRUE;
+	if (xf86LoadSubModule(pScrn, "vbe"))
+	    *MonInfo = RADEONProbeDDC(pScrn, entityIndex);
+    }
+
     if (*MonInfo) {
 	if ((*MonInfo)->rawData[0x14] & 0x80) {
 	    /* Note some laptops have a DVI output that uses internal TMDS,
@@ -1100,14 +1120,28 @@
 	     * Also for laptop, when X starts with lid closed (no DVI connection)
 	     * both LDVS and TMDS are disable, we still need to treat it as a LVDS panel.
 	     */
-	    if (port->TMDSType == TMDS_EXT) MonType = MT_DFP;
-	    else {
-		if ((INREG(RADEON_FP_GEN_CNTL) & (1<<7)) || !info->IsMobility)
-		    MonType = MT_DFP;
-		else 
-		    MonType = MT_LCD;
+	    if (vbeProbe && 
+		(RADEONCrtIsPhysicallyConnected(pScrn, !(port->DACType)) == MT_CRT)) {
+	    	    MonType = MT_NONE;
+	    	    *MonInfo = NULL;
+	    } else {
+		if (port->TMDSType == TMDS_EXT) MonType = MT_DFP;
+	    	else {
+		    if ((INREG(RADEON_FP_GEN_CNTL) & (1<<7)) || !info->IsMobility)
+		    	MonType = MT_DFP;
+		    else 
+		    	MonType = MT_LCD;
+		}
 	    }
-	} else MonType = MT_CRT;
+	} else  {
+	 	if (vbeProbe && (port == &pRADEONEnt->PortInfo[0]) &&
+	    	    (RADEONCrtIsPhysicallyConnected(pScrn, 
+		    !(pRADEONEnt->PortInfo[1].DACType)) == MT_CRT)) {
+	    	    MonType = MT_NONE;
+	    	    *MonInfo = NULL;
+		} else
+	    	    MonType = MT_CRT;
+	}
     } else MonType = MT_NONE;
 
     info->DDCReg = DDCReg;
@@ -1165,6 +1199,10 @@
 	OUTREG(RADEON_DAC_EXT_CNTL, ulData);
 
 	ulOrigDAC_CNTL     = INREG(RADEON_DAC_CNTL);
+	if (ulOrigDAC_CNTL & RADEON_DAC_PDWN)
+	    /* Powered down */
+	    return (MT_NONE);
+
 	ulData             = ulOrigDAC_CNTL;
 	ulData            |= RADEON_DAC_CMP_EN;
 	ulData            &= ~(RADEON_DAC_RANGE_CNTL_MASK
@@ -1745,7 +1783,7 @@
          * 18 is an empirical value based on the databook and Windows driver.
         */
         pll->max_pll_freq = min(pll->max_pll_freq,
-                               18 * info->mclk * 100 / pScrn->bitsPerPixel *
+                               24 * info->mclk * 100 / pScrn->bitsPerPixel *
                                info->RamWidth / 16);
     }
 
@@ -1879,7 +1917,9 @@
 	pRADEONEnt->PortInfo[i].ConnectorType = CONNECTOR_NONE;
     }
 
-    if (!RADEONGetConnectorInfoFromBIOS(pScrn)) {
+    if (!RADEONGetConnectorInfoFromBIOS(pScrn) ||
+	((pRADEONEnt->PortInfo[0].DDCType == 0) &&
+	(pRADEONEnt->PortInfo[0].DDCType == 0))) {
 	/* Below is the most common setting, but may not be true */
 	pRADEONEnt->PortInfo[0].MonType = MT_UNKNOWN;
 	pRADEONEnt->PortInfo[0].MonInfo = NULL;
@@ -2046,7 +2086,7 @@
 					  &pRADEONEnt->PortInfo[1]);
         }
 
-    }
+    } 
 
     if(((!info->HasCRTC2) || info->IsDellServer)) {
 	if (pRADEONEnt->PortInfo[0].MonType == MT_UNKNOWN) {
@@ -2085,8 +2125,8 @@
 	return TRUE;
     }
 
-    if (pRADEONEnt->PortInfo[0].MonType == MT_UNKNOWN || pRADEONEnt->PortInfo[1].MonType == MT_UNKNOWN) {
 
+    if (pRADEONEnt->PortInfo[0].MonType == MT_UNKNOWN || pRADEONEnt->PortInfo[1].MonType == MT_UNKNOWN) {
 	/* Primary Head (DVI or Laptop Int. panel)*/
 	/* A ddc capable display connected on DVI port */
 	if (pRADEONEnt->PortInfo[0].MonType == MT_UNKNOWN) {
@@ -4871,14 +4911,16 @@
     return TRUE;
 }
 
-static void
+static xf86MonPtr
 RADEONProbeDDC(ScrnInfoPtr pScrn, int indx)
 {
     vbeInfoPtr  pVbe;
+    xf86MonPtr monitor;
 
     if (xf86LoadSubModule(pScrn, "vbe")) {
 	pVbe = VBEInit(NULL,indx);
-	ConfiguredMonitor = vbeDoEDID(pVbe, NULL);
+	monitor = vbeDoEDID(pVbe, NULL);
+	return (monitor);
     }
 }
 
@@ -4971,7 +5013,7 @@
     }
 
     if (flags & PROBE_DETECT) {
-	RADEONProbeDDC(pScrn, info->pEnt->index);
+	ConfiguredMonitor = RADEONProbeDDC(pScrn, info->pEnt->index);
 	RADEONPostInt10Check(pScrn, int10_save);
 	if(info->MMIO) RADEONUnmapMMIO(pScrn);
 	return TRUE;