diff --git a/include/avivo_chipset.h b/include/avivo_chipset.h
index 82c2c42..82f3c31 100644
--- a/include/avivo_chipset.h
+++ b/include/avivo_chipset.h
@@ -34,6 +34,7 @@
 #define PCI_CHIP_RV530_71C2     0x71C2
 #define PCI_CHIP_RV530_71C5     0x71C5
 #define PCI_CHIP_R580_724B      0x724B
+#define PCI_CHIP_M54_7145       0x7145
 #define PCI_CHIP_M52_7149       0x7149
 #define PCI_CHIP_RV530_71C6     0x71C6
 
diff --git a/xorg/avivo_chipset.c b/xorg/avivo_chipset.c
index 4223dd8..dc73d74 100644
--- a/xorg/avivo_chipset.c
+++ b/xorg/avivo_chipset.c
@@ -45,6 +45,10 @@ const struct pci_id_match avivo_device_match[] = {
         0x00030000, 0x00ffffff, 0      
     },
     {
+        PCI_VENDOR_ATI, 0x7145, PCI_MATCH_ANY, PCI_MATCH_ANY,
+        0x00030000, 0x00ffffff, 0      
+    },
+    {
         PCI_VENDOR_ATI, 0x7149, PCI_MATCH_ANY, PCI_MATCH_ANY,
         0x00030000, 0x00ffffff, 0      
     },
@@ -65,6 +69,7 @@ SymTabRec avivo_chips[] = {
     { PCI_CHIP_RV530_71C5, "RV530 (Radeon X1600)" },
     { PCI_CHIP_R580_724B,  "R580 (Radeon X1900 GT)" },
     { PCI_CHIP_RV530_71C6, "RV530 (Radeon X1650 Pro)" },
+    { PCI_CHIP_M54_7145,   "M54 (Mobility Radeon X1400)" },
     { PCI_CHIP_M52_7149,   "M52 (Mobility Radeon X1300)" },
     { -1,                  NULL }
 };
@@ -74,6 +79,7 @@ PciChipsets avivo_pci_chips[] = {
   { PCI_CHIP_RV530_71C5, PCI_CHIP_RV530_71C5, RES_SHARED_VGA },
   { PCI_CHIP_R580_724B,  PCI_CHIP_R580_724B,  RES_SHARED_VGA },
   { PCI_CHIP_RV515_7142, PCI_CHIP_RV515_7142, RES_SHARED_VGA },
+  { PCI_CHIP_M54_7145,   PCI_CHIP_M54_7145,   RES_SHARED_VGA },
   { PCI_CHIP_M52_7149,   PCI_CHIP_M52_7149,   RES_SHARED_VGA },
   { PCI_CHIP_RV530_71C6, PCI_CHIP_RV530_71C6, RES_SHARED_VGA },
   { -1,                  -1,                  RES_UNDEFINED }
@@ -93,6 +99,7 @@ avivo_get_chipset(struct avivo_info *avivo)
         avivo->chipset = CHIP_FAMILY_R580;    
         break;
 
+    case PCI_CHIP_M54_7145:
     case PCI_CHIP_M52_7149:
     case PCI_CHIP_RV515_7142:
         avivo->chipset = CHIP_FAMILY_RV515;