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

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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>
This commit is contained in:
Lan Tianyu 2013-07-16 10:07:21 +08:00 • committed by Rafael J. Wysocki
parent 3c0fc07101
commit 9657a565a4
1 changed files with 8 additions and 0 deletions
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8
drivers/acpi/video.c
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@ -448,6 +448,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
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,
.ident = "HP Pavilion dm4",