diff options
Diffstat (limited to 'resources/libreboot/patch/0009-lenovo-t60-Enable-brightness-controls-native-graphic.patch')
| -rw-r--r-- | resources/libreboot/patch/0009-lenovo-t60-Enable-brightness-controls-native-graphic.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/resources/libreboot/patch/0009-lenovo-t60-Enable-brightness-controls-native-graphic.patch b/resources/libreboot/patch/0009-lenovo-t60-Enable-brightness-controls-native-graphic.patch new file mode 100644 index 0000000..7e381e2 --- /dev/null +++ b/resources/libreboot/patch/0009-lenovo-t60-Enable-brightness-controls-native-graphic.patch @@ -0,0 +1,37 @@ +From e226918085e01a51916357b4c8d667e31e040fe4 Mon Sep 17 00:00:00 2001 +From: Francis Rowe <info@gluglug.org.uk> +Date: Mon, 15 Jun 2015 19:59:46 +0100 +Subject: [PATCH 09/17] lenovo/t60: Enable brightness controls (native + graphics) + +This makes the Fn Home/End keys work for controlling the +brightness of the display. Value obtained by reading +BLC_PWM_CTL when running the VBIOS (option ROM). + +On i945 legacy brightness control is enabled by a single +bit in BLC_PWM_CTL. It's bit 16 or bit 0 (the other one +reverses polarity). Set the bit to enable brightness +controls. + +Change-Id: I22e261f2ce28ec81cd208a73e6311ec67146eb72 +Signed-off-by: Francis Rowe <info@gluglug.org.uk> +--- + src/mainboard/lenovo/t60/devicetree.cb | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/mainboard/lenovo/t60/devicetree.cb b/src/mainboard/lenovo/t60/devicetree.cb +index fdced26..5f90a73 100644 +--- a/src/mainboard/lenovo/t60/devicetree.cb ++++ b/src/mainboard/lenovo/t60/devicetree.cb +@@ -27,7 +27,7 @@ chip northbridge/intel/i945 + register "gpu_hotplug" = "0x00000220" + register "gpu_lvds_use_spread_spectrum_clock" = "1" + register "gpu_lvds_is_dual_channel" = "1" +- register "gpu_backlight" = "0x1280128" ++ register "gpu_backlight" = "0x58BF58BE" + + device cpu_cluster 0 on + chip cpu/intel/socket_mFCPGA478 +-- +1.9.1 + |