[Bugs] #4460 Maze UNSP: Maze does not let XOs go to sleep, seems to use audio device

[Sugar Labs Bugs]

#4460: Maze does not let XOs go to sleep, seems to use audio device
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    Reporter:  greenfeld                  |          Owner:  RafaelOrtiz                
        Type:  defect                     |         Status:  new                        
    Priority:  Unspecified by Maintainer  |      Milestone:  Unspecified by Release Team
   Component:  Maze                       |        Version:  0.98.x                     
    Severity:  Minor                      |       Keywords:                             
Distribution:  OLPC                       |   Status_field:  Unconfirmed                
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 1. Start Maze on a XO-4 with OLPC 13.1.0 os34.
  2. Wait until the sleepy face shows and then wait another minute.
  3. The XO-4 will not go into suspend, with powerd claiming that the audio
 device is in use.  /proc/asound suggests that this is true, and something
 has opened the device for playback.  Said audio device can also be opened
 and closed by launching and quitting Maze.

 (Ticket #3584 is semi-related, asking if we still want to support idle
 suspend from within Maze)

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Ticket URL: <http://bugs.sugarlabs.org/ticket/4460>
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