From c58c2d2597e052789db8fb0864355b3e504d286b Mon Sep 17 00:00:00 2001
From: Gustavo Maciel Dias Vieira <gustavo@sagui.org>
Date: Mon, 4 Mar 2013 15:23:37 +0000
Subject: [PATCH] ACPI video: ignore BIOS backlight value for HP dm4

commit 771d09b3c4c45d4d534a83a68e6331b97fd82e15 upstream.

On a HP Pavilion dm4 laptop the BIOS sets minimum backlight on boot,
completely dimming the screen. Ignore this initial value for this
machine.

Signed-off-by: Gustavo Maciel Dias Vieira <gustavo@sagui.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
Reading git-format-patch failed