From f50edfa55ae12a6575c502b00f9f42e283cc9c4b Mon Sep 17 00:00:00 2001 From: Timothy Pearson Date: Mon, 6 Apr 2015 22:02:18 -0500 Subject: [PATCH 11/22] mainboard/lenovo/t400: Increase backlight frequency to reduce flicker TEST: Booted Lenovo T400 with LED backlight and verified the absence of any visible flicker along with proper operation of the brightness control. Change-Id: Ifb485f4aad385aac794978527fd7d246f444ea08 Signed-off-by: Timothy Pearson --- src/mainboard/lenovo/t400/devicetree.cb | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/mainboard/lenovo/t400/devicetree.cb b/src/mainboard/lenovo/t400/devicetree.cb index cc27d25..6280b91 100644 --- a/src/mainboard/lenovo/t400/devicetree.cb +++ b/src/mainboard/lenovo/t400/devicetree.cb @@ -5,6 +5,8 @@ chip northbridge/intel/gm45 register "gfx.link_frequency_270_mhz" = "1" register "gfx.lvds_num_lanes" = "4" + register "gfx.backlight" = "0x620062" + device cpu_cluster 0 on chip cpu/intel/socket_BGA956 device lapic 0 on end -- 1.9.1