diff --git a/src/mainboard/lenovo/x1_carbon_gen1/devicetree.cb b/src/mainboard/lenovo/x1_carbon_gen1/devicetree.cb
index b3c11ea..34eaa75 100644
--- a/src/mainboard/lenovo/x1_carbon_gen1/devicetree.cb
+++ b/src/mainboard/lenovo/x1_carbon_gen1/devicetree.cb
@@ -4,7 +4,7 @@
 	register "gpu_dp_b_hotplug" = "4"
 	register "gpu_dp_c_hotplug" = "4"
 	register "gpu_dp_d_hotplug" = "4"
-	register "gpu_panel_port_select" = "0"
+	register "gpu_panel_port_select" = "PANEL_PORT_LVDS"
 	register "gpu_panel_power_backlight_off_delay" = "2000"
 	register "gpu_panel_power_backlight_on_delay" = "3000"
 	register "gpu_panel_power_cycle_delay" = "6"