Index: trunk/i386/libsaio/nvidia.c
===================================================================
--- trunk/i386/libsaio/nvidia.c	(revision 983)
+++ trunk/i386/libsaio/nvidia.c	(revision 984)
@@ -72,6 +72,8 @@
 #define PATCH_ROM_FAILED 0
 #define MAX_NUM_DCB_ENTRIES 16
 
+
+
 #define TYPE_GROUPED 0xff
 
 extern uint32_t devices_number;
@@ -84,6 +86,7 @@
 const char *nvidia_name_0[]		=	{ "@0,name",		"NVDA,Display-A" };
 const char *nvidia_name_1[]		=	{ "@1,name",		"NVDA,Display-B" };
 const char *nvidia_slot_name[]		=	{ "AAPL,slot-name",	"Slot-1" };
+//const char *nvidia_display_cfg_0[] = { "@0,display-cfg
 
 static uint8_t default_NVCAP[]= {
 	0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0d, 0x00,
@@ -93,6 +96,12 @@
 
 #define NVCAP_LEN ( sizeof(default_NVCAP) / sizeof(uint8_t) )
 
+static uint8_t default_dcfg_0[]		=	{0xff, 0xff, 0xff, 0xff};
+static uint8_t default_dcfg_1[]		=	{0xff, 0xff, 0xff, 0xff};
+
+#define DCFG0_LEN ( sizeof(default_dcfg_0) / sizeof(uint8_t) )
+#define DCFG1_LEN ( sizeof(default_dcfg_1) / sizeof(uint8_t) )
+
 static struct nv_chipsets_t NVKnownChipsets[] = {
 	{ 0x00000000, "Unknown" },
 	// 0040 - 004F	
@@ -1163,6 +1172,7 @@
 	const char			*value;
 	bool				doit;
 
+
 	devicepath = get_pci_dev_path(nvda_dev);
 	bar[0] = pci_config_read32(nvda_dev->dev.addr, 0x10 );
 	regs = (uint8_t *) (bar[0] & ~0x0f);
@@ -1307,7 +1317,40 @@
 			memcpy(default_NVCAP, new_NVCAP, NVCAP_LEN);
 		}
 	}
+    
+    if (getValueForKey(kdcfg0, &value, &len, &bootInfo->bootConfig) && len == DCFG0_LEN * 2)
+    {
+        uint8_t new_dcfg0[DCFG0_LEN];
+        
+        if (hex2bin(value, new_dcfg0, DCFG0_LEN) == 0)
+        {
+            verbose("Using user supplied @0,display-cfg\n");
+            memcpy(default_dcfg_0, new_dcfg0, DCFG0_LEN);
+        }
+    }
+    
+    //#if DEBUG_dcfg0
+    printf("@0,display-cfg: %02x%02x%02x%02x\n",
+           default_dcfg_0[0], default_dcfg_0[1], default_dcfg_0[2], default_dcfg_0[3], default_dcfg_0[4]);
+    //#endif
+    
+    if (getValueForKey(kdcfg1, &value, &len, &bootInfo->bootConfig) && len == DCFG1_LEN * 2)
+    {
+        uint8_t new_dcfg1[DCFG1_LEN];
+        
+        if (hex2bin(value, new_dcfg1, DCFG1_LEN) == 0)
+        {
+            verbose("Using user supplied @1,display-cfg\n");
+            memcpy(default_dcfg_1, new_dcfg1, DCFG1_LEN);
+        }
+    }
+    
+    //#if DEBUG_dcfg1
+    printf("@1,display-cfg: %02x%02x%02x%02x\n",
+           default_dcfg_1[0], default_dcfg_1[1], default_dcfg_1[2], default_dcfg_1[3], default_dcfg_1[4]);
+    //#endif
 
+
  #if DEBUG_NVCAP
         printf("NVCAP: %02x%02x%02x%02x-%02x%02x%02x%02x-%02x%02x%02x%02x-%02x%02x%02x%02x-%02x%02x%02x%02x\n",
 		default_NVCAP[0], default_NVCAP[1], default_NVCAP[2], default_NVCAP[3],
@@ -1322,6 +1365,9 @@
 	devprop_add_value(device, "VRAM,totalsize", (uint8_t*)&videoRam, 4);
 	devprop_add_value(device, "model", (uint8_t*)model, strlen(model) + 1);
 	devprop_add_value(device, "rom-revision", (uint8_t*)biosVersion, strlen(biosVersion) + 1);
+    devprop_add_value(device, "@0,display-cfg", default_dcfg_0, DCFG0_LEN);
+    devprop_add_value(device, "@1,display-cfg", default_dcfg_1, DCFG1_LEN);
+
 	if (getBoolForKey(kVBIOS, &doit, &bootInfo->bootConfig) && doit) {
 		devprop_add_value(device, "vbios", rom, (nvBiosOveride > 0) ? nvBiosOveride : (rom[2] * 512));
 	}
Index: trunk/i386/boot2/boot.h
===================================================================
--- trunk/i386/boot2/boot.h	(revision 983)
+++ trunk/i386/boot2/boot.h	(revision 984)
@@ -92,7 +92,10 @@
 
 #define kUseNvidiaROM		"UseNvidiaROM"		/* nvidia.c */
 #define kVBIOS				"VBIOS"				/* nvidia.c */
+#define kdcfg0              "display_0"			/* nvidia.c */
+#define kdcfg1              "display_1"			/* nvidia.c */
 
+
 #define kPCIRootUID			"PCIRootUID"		/* pci_root.c */
 
 #define kEthernetBuiltIn	"EthernetBuiltIn"	/* pci_setup.c */
Index: trunk/doc/BootHelp.txt
===================================================================
--- trunk/doc/BootHelp.txt	(revision 983)
+++ trunk/doc/BootHelp.txt	(revision 984)
@@ -76,6 +76,9 @@
     UseNvidiaROM=Yes|No   Use an alternate Nvidia ROM image 
                            (path:  /Extra/<vendorid>_<devid>.rom)
     VBIOS=Yes|No          Inject NVIDIA VBIOS into device-properties.
+    display_0=<value>      Inject alternate value of display-cfg into NVDA,Display-A@0, MUST BE 8 Chars in length (HEX)
+    display_1=<value>      Inject alternate value of display-cfg into NVDA,Display-B@1, MUST BE 8 Chars in length (HEX)
+
     
   EthernetBuiltIn=Yes|No  Automatic "built-in"=yes device-properties generation
                           for ethernet interfaces.