Alessandro Pilotti 3b415d1d41
Adds display idle timeout plugin
Adds a new plugin for setting the timeout before the display is turned
off. The timeout value, in seconds, is controlled by the
"display_idle_timeout" option.

Setting the value to 0 disables the timeout and leaves the display
always on.

Change-Id: Ibc7dbad3b1ce6ec06ff0d50d937409914d18685a
Implements: blueprint display-idle-timeout-plugin
Co-Authored-By: Stefan Caraiman <scaraiman@cloudbasesolutions.com>
2017-02-21 20:47:17 +02:00

28 lines
1.1 KiB
Python

# Copyright (c) 2017 Cloudbase Solutions Srl
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from cloudbaseinit import exception
from cloudbaseinit.osutils import factory as osutils_factory
def set_display_idle_timeout(seconds=0):
osutils = osutils_factory.get_os_utils()
args = ["powercfg.exe", "/setacvalueindex", "SCHEME_CURRENT",
"SUB_VIDEO", "VIDEOIDLE", str(int(seconds))]
(out, err, ret_val) = osutils.execute_system32_process(args)
if ret_val:
raise exception.CloudbaseInitException(
'PowerCfg failed.\nOutput: %(out)s\nError:'
' %(err)s' % {'out': out, 'err': err})