drm/radeon/kms: fallback to default connector table

if necessary for combios

Some early combios radeon cards don't have a connector
table or dac table in the bios, if they do not, fallback
to the default tables.

Should fix kernel bug 14963.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/radeon_display.c

@@ -329,8 +329,11 @@ static bool radeon_setup_enc_conn(struct drm_device *dev)
 				ret = radeon_get_atom_connector_info_from_object_table(dev);
 			else
 				ret = radeon_get_atom_connector_info_from_supported_devices_table(dev);
-		} else
+		} else {
 			ret = radeon_get_legacy_connector_info_from_bios(dev);
+			if (ret == false)
+				ret = radeon_get_legacy_connector_info_from_table(dev);
+		}
 	} else {
 		if (!ASIC_IS_AVIVO(rdev))
 			ret = radeon_get_legacy_connector_info_from_table(dev);