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Commit 7121413f authored by Jesse Barnes's avatar Jesse Barnes
Browse files

drm/i915: blacklist Acer AspireOne lid status 



It reports closed when open, leading to "no outputs found" at startup
unless a VGA cable is plugged in.

Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
parent 1a133e0c

drivers/gpu/drm/i915/intel_lvds.c

+13 −1
Original line number Diff line number Diff line
@@ -591,6 +591,18 @@ static void intel_lvds_mode_set(struct drm_encoder *encoder, 
	I915_WRITE(PFIT_CONTROL, lvds_priv->pfit_control);

}



/* Some lid devices report incorrect lid status, assume they're connected */

static const struct dmi_system_id bad_lid_status[] = {

	{

		.ident = "Aspire One",

		.matches = {

			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),

			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire one"),

		},

	},

	{ }

};



/**

 * Detect the LVDS connection.

 *
@@ -602,7 +614,7 @@ static enum drm_connector_status intel_lvds_detect(struct drm_connector *connect 
{

	enum drm_connector_status status = connector_status_connected;



	if (!acpi_lid_open())

	if (!acpi_lid_open() && !dmi_check_system(bad_lid_status))

		status = connector_status_disconnected;



	return status;