drm: remove the EDID blob stored in the EDID property when it is disconnected
Zhao Yakui [Thu, 4 Mar 2010 08:25:55 +0000 (08:25 +0000)]
Now the EDID property will be updated when the corresponding EDID can be
obtained from the external display device. But after the external device
is plugged-out, the EDID property is not updated. In such case we still
get the corresponding EDID property although it is already detected as
disconnected.

https://bugs.freedesktop.org/show_bug.cgi?id=26743

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/drm_crtc_helper.c

index f2aaf39..51103aa 100644 (file)
@@ -104,6 +104,7 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
        if (connector->status == connector_status_disconnected) {
                DRM_DEBUG_KMS("%s is disconnected\n",
                          drm_get_connector_name(connector));
+               drm_mode_connector_update_edid_property(connector, NULL);
                goto prune;
        }