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1 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved. | 1 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved. |
2 # Use of this source code is governed by a BSD-style license that can be | 2 # Use of this source code is governed by a BSD-style license that can be |
3 # found in the LICENSE file. | 3 # found in the LICENSE file. |
4 | 4 |
5 import logging, os, time, utils | 5 import logging, os, time, utils |
6 from autotest_lib.client.bin import test | 6 from autotest_lib.client.bin import test |
7 from autotest_lib.client.common_lib import error, site_power_status, site_ui, \ | 7 from autotest_lib.client.common_lib import error, site_power_status, site_ui, \ |
8 utils | 8 utils |
9 | 9 |
10 class power_Backlight(test.test): | 10 class power_Backlight(test.test): |
11 version = 1 | 11 version = 1 |
12 | 12 |
13 | 13 |
14 def run_once(self, delay=60, seconds=10, tries=20): | 14 def run_once(self, delay=60, seconds=10, tries=20): |
15 # disable screen locker | 15 # disable screen locker and powerd |
16 os.system('stop screen-locker') | 16 os.system('stop screen-locker') |
| 17 os.system('stop powerd') |
17 | 18 |
18 # disable screen blanking. Stopping screen-locker isn't | 19 # disable screen blanking. Stopping screen-locker isn't |
19 # synchronous :(. Add a sleep for now, till powerd comes around | 20 # synchronous :(. Add a sleep for now, till powerd comes around |
20 # and fixes all this for us. | 21 # and fixes all this for us. |
21 # TODO(davidjames): Power manager should support this feature directly | 22 # TODO(davidjames): Power manager should support this feature directly |
22 time.sleep(5) | 23 time.sleep(5) |
23 site_ui.xsystem('xset s off') | 24 site_ui.xsystem('xset s off') |
24 site_ui.xsystem('xset dpms 0 0 0') | 25 site_ui.xsystem('xset dpms 0 0 0') |
25 site_ui.xsystem('xset -dpms') | 26 site_ui.xsystem('xset -dpms') |
26 | 27 |
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49 keyvals['w_bl_%d_rate' % i] = rate | 50 keyvals['w_bl_%d_rate' % i] = rate |
50 rates.append(rate) | 51 rates.append(rate) |
51 self.write_perf_keyval(keyvals) | 52 self.write_perf_keyval(keyvals) |
52 for i in range(1, len(levels)): | 53 for i in range(1, len(levels)): |
53 if rates[i] <= rates[i-1]: | 54 if rates[i] <= rates[i-1]: |
54 raise error.TestFail('Turning up the backlight ' \ | 55 raise error.TestFail('Turning up the backlight ' \ |
55 'should increase energy consumption') | 56 'should increase energy consumption') |
56 | 57 |
57 | 58 |
58 def cleanup(self): | 59 def cleanup(self): |
59 # Re-enable screen locker. This also re-enables dpms. | 60 # Re-enable screen locker and powerd. This also re-enables dpms. |
60 utils.system('start screen-locker') | 61 os.system('start powerd') |
| 62 os.system('start screen-locker') |
61 | 63 |
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