Commit 9657a565 authored Jul 16, 2013 by Lan Tianyu Committed by Rafael J. Wysocki Jul 18, 2013

ACPI / video: ignore BIOS initial backlight value for Fujitsu E753

The BIOS of FUjitsu E753 reports an incorrect initial backlight value
for WIN8 compatible OS, causing backlight to be dark during startup.
This change causes the incorrect initial value from BIOS to be ignored.

References: https://bugzilla.kernel.org/show_bug.cgi?id=60161


Reported-and-tested-by: Jan Hinnerk Stosch <janhinnerk.stosch@gmail.com>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Cc: 3.7+ <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent 3c0fc071

drivers/acpi/video.c

+8 −0

Original line number	Original line	Diff line number	Diff line
	@@ -448,6 +448,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
	DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13 - 2000 Notebook PC"),		DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13 - 2000 Notebook PC"),
	},		},
	},		},
			{
			.callback = video_ignore_initial_backlight,
			.ident = "Fujitsu E753",
			.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "FUJITSU"),
			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E753"),
			},
			},
	{		{
	.callback = video_ignore_initial_backlight,		.callback = video_ignore_initial_backlight,
	.ident = "HP Pavilion dm4",		.ident = "HP Pavilion dm4",