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Commit 21856d56 authored by Hans de Goede's avatar Hans de Goede Committed by Greg Kroah-Hartman
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ACPI: video: Fix Lenovo Ideapad Z570 DMI match 



[ Upstream commit 2d11eae42d52a131f06061015e49dc0f085c5bfc ]

Multiple Ideapad Z570 variants need acpi_backlight=native to force native
use on these pre Windows 8 machines since acpi_video backlight control
does not work here.

The original DMI quirk matches on a product_name of "102434U" but other
variants may have different product_name-s such as e.g. "1024D9U".

Move to checking product_version instead as is more or less standard for
Lenovo DMI quirks for similar reasons.

Signed-off-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>
parent c727c1eb

drivers/acpi/video_detect.c

+1 −1
Original line number Diff line number Diff line
@@ -316,7 +316,7 @@ static const struct dmi_system_id video_detect_dmi_table[] = { 
	 .ident = "Lenovo Ideapad Z570",

	 .matches = {

		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),

		DMI_MATCH(DMI_PRODUCT_NAME, "102434U"),

		DMI_MATCH(DMI_PRODUCT_VERSION, "Ideapad Z570"),

		},

	},

	{