From 512caf2594be34e07383b8a5d5e9e2013c6e2067 Mon Sep 17 00:00:00 2001 From: Francis Rowe Date: Mon, 29 Dec 2014 21:02:48 +0000 Subject: [PATCH 20/22] gm45: fix uneven backlight (native gfx init) When setting brightness levels low, backlight becomes uneven. This patch fixes that. Tested on X200. Change-Id: Ie71bf696ba4431ab25076f92dd5fdc9fdc167b09 Signed-off-by: Francis Rowe --- src/northbridge/intel/gm45/acpi/igd.asl | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/northbridge/intel/gm45/acpi/igd.asl b/src/northbridge/intel/gm45/acpi/igd.asl index 199765b..6f0eb8c 100644 --- a/src/northbridge/intel/gm45/acpi/igd.asl +++ b/src/northbridge/intel/gm45/acpi/igd.asl @@ -206,14 +206,14 @@ Device (GFX0) Method (_BCM, 1, NotSerialized) { - Store (ShiftLeft (Arg0, 4), ^^BCLV) + Store (ShiftLeft (Arg0, 8), ^^BCLV) Store (0x80000000, ^^CR1) - Store (0x0610, ^^BCLM) + Store (ShiftLeft (0x61, 8), ^^BCLM) } Method (_BQC, 0, NotSerialized) { Store (^^BCLV, Local0) - ShiftRight (Local0, 4, Local0) + ShiftRight (Local0, 8, Local0) Return (Local0) } -- 1.9.1