--- a/915resolution.c	2011-04-20 17:45:52.000000000 +0200
+++ b/915resolution.c	2011-06-26 02:34:58.493941231 +0200
@@ -110,12 +110,12 @@
 
 typedef enum {
     CT_UNKWN, CT_830, CT_845G, CT_855GM, CT_865G, CT_915G, CT_915GM, CT_945G, CT_945GM, CT_945GME,
-    CT_946GZ, CT_G965, CT_Q965, CT_965GM, CT_G33, CT_Q33, CT_Q35, CT_500GMA
+    CT_946GZ, CT_G965, CT_Q965, CT_965GM, CT_G33, CT_Q33, CT_Q35, CT_500GMA, CT_GM45
 } chipset_type;
 
 char * chipset_type_names[] = {
     "UNKNOWN", "830",  "845G", "855GM", "865G", "915G", "915GM", "945G", "945GM", "945GME",
-    "946GZ",   "G965", "Q965", "965GM", "G33", "Q33", "Q35", "500GMA"
+    "946GZ",   "G965", "Q965", "965GM", "G33", "Q33", "Q35", "500GMA", "GM45"
 };
 
 typedef enum {
@@ -290,8 +290,12 @@
         break;
 
     case 0x81008086:
-      type = CT_500GMA;
-      break;
+        type = CT_500GMA;
+        break;
+
+    case 0x2a408086:
+        type = CT_GM45;
+        break;
 
     default:
         type = CT_UNKWN;
@@ -531,6 +535,7 @@
     case CT_Q35:
     case CT_Q33:
     case CT_500GMA:
+    case CT_GM45:
         outl(0x80000090, 0xcf8);
         map->b1 = inb(0xcfd);
         map->b2 = inb(0xcfe);
@@ -577,6 +582,7 @@
     case CT_Q35:
     case CT_Q33:
     case CT_500GMA:
+    case CT_GM45:
         outl(0x80000090, 0xcf8);
         outb(map->b1, 0xcfd);
         outb(map->b2, 0xcfe);
@@ -840,6 +846,9 @@
 	else if (!strcmp(argv[index], "500GMA")) {
 	    *forced_chipset = CT_500GMA;
 	}
+	else if (!strcmp(argv[index], "GM45")) {
+	    *forced_chipset = CT_GM45;
+	}
         else {
             *forced_chipset = CT_UNKWN;
         }