From: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Thu, 17 Sep 2009 22:45:26 +0000 (-0700)
Subject: drm/i915: blacklist Acer AspireOne lid status
X-Git-Tag: v2.6.32-rc1~52^2~16
X-Git-Url: http://bbs.cooldavid.org/git/?a=commitdiff_plain;h=7121413f2accf14cf05b38539fb7a8be77543370;p=net-next-2.6.git

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: Jesse Barnes <jbarnes@virtuousgeek.org>
---

diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index c1cc5566e20..98ae3d73577 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -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;