Fix Bug 2746: xset is not working in 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 test
 from autotest_lib.client.common_lib import error, site_httpd, \
                             site_power_status, site_ui, utils
 
 params_dict = {
@@ skipping 61 matching lines @@
                 'Ethernet interface is active. Please remove Ethernet cable')
 
         # TODO (snanda):
         # - set brightness level
         # - turn off suspend on idle (not implemented yet in Chrome OS)
 
         # disable screen locker
         os.system('stop screen-locker')
 
         # disable screen blanking
-        site_ui.xcommand(os.path.join(self.bindir, 'xset') + ' -dpms')
+        site_ui.xsystem(os.path.join(self.bindir, 'xset') + ' -dpms')
 
         # fix up file perms for the power test extension so that chrome
         # can access it
         os.system('chmod -R 755 %s' % self.bindir)
 
         # write test parameters to the power extension's params.js file
         self._ext_path = os.path.join(self.bindir, 'extension')
         self._write_ext_params()
 
         # setup a HTTP Server to listen for status updates from the power
@@ skipping 67 matching lines @@
 
         # record chrome power extension stats
         for e in self._form_data:
             keyvals['ext_' + e] = self._form_data[e]
 
         self.write_perf_keyval(keyvals)
 
 
     def cleanup(self):
         # re-enable screen blanking
-        site_ui.xcommand(os.path.join(self.bindir, 'xset') + ' +dpms')
+        site_ui.xsystem(os.path.join(self.bindir, 'xset') + ' +dpms')
 
         # re-enable screen locker
         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)
@@ skipping 47 matching lines @@
             if latch.is_set():
                 latched = True
                 self._form_data = self._testServer.get_form_entries()
                 logging.debug(self._form_data)
                 break
 
         if not latched:
             logging.debug("Didn't get status back from power extension")
 
         session.close()