acpi/video_detect: blacklist samsung x360
authorCorentin Chary <corentin.chary@gmail.com>
Wed, 13 Jun 2012 07:32:04 +0000 (09:32 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 9 Jul 2014 17:51:21 +0000 (10:51 -0700)
commit89c9afdbdcfdc720fa6ce5acf3745dda6e81a7db
tree8c8c1a6614c95094092c88eafdee51e6e8daffc1
parent8e51d5ac0181d0b7229536fc7fd4c790865f2cdb
acpi/video_detect: blacklist samsung x360

commit 084940d5b101e9ca91a689eb5048151b14076839 upstream.

On Samsung X360, the BIOS will set a flag (VDRV) if the generic
ACPI backlight device is used. This flag will definitively break
the backlight interface (even the vendor interface) untill next
reboot. It's why we should prevent video.ko from being used here
and we can't rely on a later call to acpi_video_unregister().

Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/acpi/video_detect.c