diff --git a/src/mainboard/lenovo/t520/devicetree.cb b/src/mainboard/lenovo/t520/devicetree.cb
index c911d99..c32e237 100644
--- a/src/mainboard/lenovo/t520/devicetree.cb
+++ b/src/mainboard/lenovo/t520/devicetree.cb
@@ -5,11 +5,17 @@
 
 	# Enable Panel as LVDS and configure power delays
 	register "gpu_panel_port_select" = "0"			# LVDS
-	register "gpu_panel_power_cycle_delay" = "6"		# T7: 500ms
-	register "gpu_panel_power_up_delay" = "100"		# T1+T2: 10ms
-	register "gpu_panel_power_down_delay" = "100"		# T5+T6: 10ms
-	register "gpu_panel_power_backlight_on_delay" = "2100"	# T3: 210ms
-	register "gpu_panel_power_backlight_off_delay" = "2100"	# T4: 210ms
+	register "gpu_panel_power_cycle_delay" = "5"
+	register "gpu_panel_power_up_delay" = "300"		# T1+T2: 30ms
+	register "gpu_panel_power_down_delay" = "300"		# T5+T6: 30ms
+	register "gpu_panel_power_backlight_on_delay" = "2000"	# T3: 200ms
+	register "gpu_panel_power_backlight_off_delay" = "2000"	# T4: 200ms
+	register "gfx.use_spread_spectrum_clock" = "1"
+	register "gfx.lvds_dual_channel" = "1"
+	register "gfx.link_frequency_270_mhz" = "1"
+	register "gfx.lvds_num_lanes" = "4"
+	register "gpu_cpu_backlight" = "0x1155"
+	register "gpu_pch_backlight" = "0x06100610"
 
 	device cpu_cluster 0 on
 		chip cpu/intel/socket_rPGA988B