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Commit 1f59ab27 authored by Alex Hung's avatar Alex Hung Committed by Rafael J. Wysocki
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ACPI / video: Add force_none quirk for Dell OptiPlex 9020M 



Dell OptiPlex 9020M is a micro PC desktop that has no built-in
LCD panel and its acpi_video does not work.

Signed-off-by: default avatarAlex Hung <alex.hung@canonical.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 5771a8c0

drivers/acpi/video_detect.c

+14 −0
Original line number Diff line number Diff line
@@ -103,6 +103,12 @@ static int video_detect_force_native(const struct dmi_system_id *d) 
	return 0;

}



static int video_detect_force_none(const struct dmi_system_id *d)

{

	acpi_backlight_dmi = acpi_backlight_none;

	return 0;

}



static const struct dmi_system_id video_detect_dmi_table[] = {

	/* On Samsung X360, the BIOS will set a flag (VDRV) if generic

	 * ACPI backlight device is used. This flag will definitively break
@@ -313,6 +319,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = { 
		DMI_MATCH(DMI_PRODUCT_NAME, "Precision 7510"),

		},

	},

	{

	 .callback = video_detect_force_none,

	 .ident = "Dell OptiPlex 9020M",

	 .matches = {

		DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),

		DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 9020M"),

		},

	},

	{ },

};