https://bugzilla.redhat.com/show_bug.cgi?id=639146

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index ce8ff0e..3bbd2c4 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1353,6 +1353,27 @@ static bool i915_switcheroo_can_switch(struct pci_dev *pdev)
 	return can_switch;
 }
 
+/* check the VBT to see whether the eDP is on DP-D port */
+static bool intel_dpd_is_edp(struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct child_device_config *p_child;
+	int i;
+
+	if (!dev_priv->child_dev_num)
+		return false;
+
+	for (i = 0; i < dev_priv->child_dev_num; i++) {
+		p_child = dev_priv->child_dev + i;
+
+	if (p_child->dvo_port == PORT_IDPD &&
+		p_child->device_type == DEVICE_TYPE_eDP)
+		return true;
+	}
+
+	return false;
+}
+
 static int i915_load_modeset_init(struct drm_device *dev,
 				  unsigned long prealloc_start,
 				  unsigned long prealloc_size,
@@ -1409,6 +1430,15 @@ static int i915_load_modeset_init(struct drm_device *dev,
 	if (ret)
 		DRM_INFO("failed to find VBIOS tables\n");
 
+	/* XXX: eDP doesn't even work in git HEAD,
+ 	 * bail out and pray that text mode still works...
+ 	 */
+	if (intel_dpd_is_edp(dev)) {
+		DRM_ERROR("eDP support is currently non-functional, please boot with \"nomodeset xdriver=vesa\"\n");
+		ret = -EINVAL;
+		goto cleanup_ringbuffer;
+	}
+
 	/* if we have > 1 VGA cards, then disable the radeon VGA resources */
 	ret = vga_client_register(dev->pdev, dev, NULL, i915_vga_set_decode);
 	if (ret)