[ 3.5.y.z extended stable ] Patch "ACPI video: ignore BIOS initial backlight value for HP 1000" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    ACPI video: ignore BIOS initial backlight value for HP 1000

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From df4f9320812bb6fa934e7821d0c1e7aba3170ba3 Mon Sep 17 00:00:00 2001
From: Alex Hung <alex.hung at canonical.com>
Date: Mon, 6 May 2013 08:23:43 +0000
Subject: [PATCH] ACPI video: ignore BIOS initial backlight value for HP 1000

commit 4ef366c583d6180b1c951147869ee5a3038834f2 upstream.

On HP 1000 lapops, BIOS reports minimum backlight on boot and
causes backlight to dim completely. This ignores the initial backlight
values and set to max brightness.

References:: https://bugs.launchpad.net/bugs/1167760
Signed-off-by: Alex Hung <alex.hung at canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki at intel.com>
Cc: Alex Hung <alex.hung at canonical.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 drivers/acpi/video.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index f3b3027..55c9ae7 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -455,6 +455,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dm4 Notebook PC"),
 		},
 	},
+	{
+	 .callback = video_ignore_initial_backlight,
+	 .ident = "HP 1000 Notebook PC",
+	 .matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "HP 1000 Notebook PC"),
+		},
+	},
 	{}
 };

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1.8.1.2