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    Subject[003/197] drm: remove the EDID blob stored in the EDID property when it is disconnected
    2.6.32-stable review patch.  If anyone has any objections, please let us know.

    ------------------

    From: Zhao Yakui <yakui.zhao@intel.com>

    commit 725398322d05486109375fbb85c3404108881e17 upstream.

    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>
    Signed-off-by: Dave Airlie <airlied@redhat.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

    ---
    drivers/gpu/drm/drm_crtc_helper.c | 1 +
    1 file changed, 1 insertion(+)

    --- a/drivers/gpu/drm/drm_crtc_helper.c
    +++ b/drivers/gpu/drm/drm_crtc_helper.c
    @@ -104,6 +104,7 @@ int drm_helper_probe_single_connector_mo
    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;
    }




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