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(parent: 871483f) | 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 16:45:00 +0000 (09:45 -0700)
commit06f3ee48d0f0c2a531f7c5ff6355f9ccee32b20d
tree1a51732fbb1c2778884907e644e19c3725a2967ftree | snapshot
parent871483faa88417bcec82ed20050c758cbf65a5cacommit | 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 | history
Domain: System / Kernel;