ACPI / video: ignore BIOS initial backlight value for Fujitsu E753
authorLan Tianyu <tianyu.lan@intel.com>
Tue, 16 Jul 2013 02:07:21 +0000 (10:07 +0800)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Thu, 18 Jul 2013 19:43:41 +0000 (21:43 +0200)
commit9657a565a476d517451c10b0bcc106e300785aff
treeb91f25b7cefd2aa73f8b19652d15861a9d0e485a
parent3c0fc0710185e618a661528eed2183102e25c2f8
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>
drivers/acpi/video.c