diff --git a/src/mainboard/lenovo/t60/dsdt.asl b/src/mainboard/lenovo/t60/dsdt.asl
index 842dbc3d72..4122917a5d 100644
--- a/src/mainboard/lenovo/t60/dsdt.asl
+++ b/src/mainboard/lenovo/t60/dsdt.asl
@@ -22,6 +22,7 @@
 #define THINKPAD_EC_GPE 28
 #define BRIGHTNESS_UP \DSPC.BRTU
 #define BRIGHTNESS_DOWN \DSPC.BRTD
+#define ACPI_VIDEO_DEVICE \_SB.PCI0.GFX0
 
 DefinitionBlock(
 	"dsdt.aml",
diff --git a/src/mainboard/lenovo/x60/dsdt.asl b/src/mainboard/lenovo/x60/dsdt.asl
index 842dbc3d72..4122917a5d 100644
--- a/src/mainboard/lenovo/x60/dsdt.asl
+++ b/src/mainboard/lenovo/x60/dsdt.asl
@@ -22,6 +22,7 @@
 #define THINKPAD_EC_GPE 28
 #define BRIGHTNESS_UP \DSPC.BRTU
 #define BRIGHTNESS_DOWN \DSPC.BRTD
+#define ACPI_VIDEO_DEVICE \_SB.PCI0.GFX0
 
 DefinitionBlock(
 	"dsdt.aml",