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(parent: 6180b5e) | patch
ACPI / video: ignore BIOS initial backlight value for HP Pavilion g6
authorAsh Willis <ashwillis.kernel@gmail.com>
Wed, 29 May 2013 01:27:59 +0000 (01:27 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 13 Jun 2013 17:49:15 +0000 (10:49 -0700)
commit2089bfbd513b6e59b61d462eb27e94704b0c2098
tree16242c109cfaea40aba4273cffbfeb1ae261d965tree
parent6180b5e1367b5d6eee5ae3cfe0c38270a973464fcommit | diff
ACPI / video: ignore BIOS initial backlight value for HP Pavilion g6

commit 780a6ec640a3fed671fc2c40e4dd30c03eca3ac3 upstream.

This patch addresses kernel bug 56661. BIOS reports an incorrect
backlight value, causing the driver to switch off the backlight
completely during startup. This patch ignores the incorrect value from
BIOS.

References: https://bugzilla.kernel.org/show_bug.cgi?id=56661
Signed-off-by: Ash Willis <ashwillis@programmer.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/acpi/video.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git