1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
From 512caf2594be34e07383b8a5d5e9e2013c6e2067 Mon Sep 17 00:00:00 2001
From: Francis Rowe <info@gluglug.org.uk>
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 <info@gluglug.org.uk>
---
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
|
