Also stop powerd in power_Backlight and power_LoadTest

client/site_tests/power_LoadTest/power_LoadTest.py

 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import logging, os, re, shutil, time
 from autotest_lib.client.bin import site_ui_test
 from autotest_lib.client.common_lib import error, site_httpd, \
                             site_power_status, site_ui, utils
 
 params_dict = {
@@ skipping 70 matching lines @@
 
         # record the current and max backlight levels
         cmd = 'backlight-tool --get_max_brightness'
         self._tmp_keyvals['level_backlight_max'] = int(
                                              utils.system_output(cmd).rstrip())
 
         cmd = 'backlight-tool --get_brightness'
         self._tmp_keyvals['level_backlight_current'] = int(
                                              utils.system_output(cmd).rstrip())
 
-        # disable screen locker
+        # disable screen locker and powerd
         os.system('stop screen-locker')
+        os.system('stop powerd')
 
         # disable screen blanking. Stopping screen-locker isn't
         # synchronous :(. Add a sleep for now, till powerd comes around
         # and fixes all this for us.
         time.sleep(5)
         site_ui.xsystem(os.path.join(self.bindir, 'xset') + ' s off')
         site_ui.xsystem(os.path.join(self.bindir, 'xset') + ' dpms 0 0 0')
         site_ui.xsystem(os.path.join(self.bindir, 'xset') + ' -dpms')
 
         # fix up file perms for the power test extension so that chrome
@@ skipping 89 matching lines @@
 
         keyvals['a_current_rate'] = keyvals['ah_charge_used'] * 60 / \
                                     keyvals['minutes_battery_life']
         keyvals['w_energy_rate'] = keyvals['wh_energy_used'] * 60 / \
                                    keyvals['minutes_battery_life']
 
         self.write_perf_keyval(keyvals)
 
 
     def cleanup(self):
-        # re-enable screen locker. This also re-enables dpms.
+        # re-enable screen locker and powerd. This also re-enables dpms.
+        os.system('start powerd')
         os.system('start screen-locker')
 
 
     def _is_network_iface_running(self, name):
         try:
             out = utils.system_output('ifconfig %s' % name)
         except error.CmdError, e:
             logging.info(e)
             return False
 
@@ skipping 52 matching lines @@
             for e in form_data:
                 key = 'ext_' + e
                 if key in self._tmp_keyvals:
                     self._tmp_keyvals[key] += form_data[e]
                 else:
                     self._tmp_keyvals[key] = form_data[e]
         else:
             logging.debug("Didn't get status back from power extension")
 
         return low_battery