diff options
Diffstat (limited to 'resources/libreboot/patch/0010-gm45-fix-uneven-backlight-native-gfx-init.patch')
| -rw-r--r-- | resources/libreboot/patch/0010-gm45-fix-uneven-backlight-native-gfx-init.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/resources/libreboot/patch/0010-gm45-fix-uneven-backlight-native-gfx-init.patch b/resources/libreboot/patch/0010-gm45-fix-uneven-backlight-native-gfx-init.patch new file mode 100644 index 0000000..c06f19d --- /dev/null +++ b/resources/libreboot/patch/0010-gm45-fix-uneven-backlight-native-gfx-init.patch @@ -0,0 +1,42 @@ +From bea0f09575914be6f2d35dbc53220bce6ac03aac 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 10/13] 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 696cc2b..39fefb2 100644 +--- a/src/northbridge/intel/gm45/acpi/igd.asl ++++ b/src/northbridge/intel/gm45/acpi/igd.asl +@@ -62,15 +62,15 @@ Device (GFX0) + + Method (XBCM, 1, NotSerialized) + { +- Store (ShiftLeft (Arg0, 4), BCLV) ++ Store (ShiftLeft (Arg0, 8), BCLV) + Store (0x80000000, CR1) +- Store (0x0610, BCLM) ++ Store (ShiftLeft (0x61, 8), BCLM) + } + + Method (XBQC, 0, NotSerialized) + { + Store (BCLV, Local0) +- ShiftRight (Local0, 4, Local0) ++ ShiftRight (Local0, 8, Local0) + Return (Local0) + } + #include <drivers/intel/gma/igd.asl> +-- +1.9.1 + |