Commit 5a7d3cb2 authored by Jiri Slaby (SUSE)'s avatar Jiri Slaby (SUSE) Committed by sanglipeng
Browse files

ACPI: video: Add backlight=native DMI quirk for Lenovo Ideapad Z470

stable inclusion
from stable-v5.10.197
commit 560014aefb702e9f19d0970073859cf502f77f5d
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I96Q8P

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=560014aefb702e9f19d0970073859cf502f77f5d

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[ Upstream commit 96b709be ]

The Lenovo Ideapad Z470 predates Windows 8, so it defaults to using
acpi_video for backlight control. But this is not functional on this
model.

Add a DMI quirk to use the native backlight interface which works.

Link: https://bugzilla.suse.com/show_bug.cgi?id=1208724


Signed-off-by: default avatarJiri Slaby (SUSE) <jirislaby@kernel.org>
Reviewed-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarsanglipeng <sanglipeng1@jd.com>
parent 6d2c2181
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