#12738 NORM Future : XO-4 battery capacity test: shutdown after discharge

Zarro Boogs per Child bugtracker at laptop.org
Thu Aug 22 13:23:57 EDT 2013

#12738: XO-4 battery capacity test:  shutdown after discharge
           Reporter:  pgf           |       Owner:  pgf                               
               Type:  defect        |      Status:  new                               
           Priority:  normal        |   Milestone:  Future Release                    
          Component:  not assigned  |     Version:  Development source as of this date
         Resolution:                |    Keywords:                                    
        Next_action:  reproduce     |    Verified:  0                                 
Deployment_affected:                |   Blockedby:                                    
           Blocking:                |  

Comment(by rsmith):

 Replying to [ticket:12738 pgf]:

 > Looking at the logs I have a theory.  The laptop is getting shutdown
 > before the test would normally stop.  The test is set to stop at a
 > battery voltage of 5.2V but none of the test runs get that low. Most of
 > them stop at close to 6.0V with an SOC of 1%.

 My theory has hole.  I realized today that 0% never happens.  The battery
 system on XO-4 only marks the battery as 0% _after_ the critical shutdown
 voltage is reached (which powers off the laptop). powerd won't ever see a

 The problem also seems intermittent since the last set of logs sent from
 quanta appear normal modulo things that can be attributed to file copy
 problems (1 missing file).

Ticket URL: <http://dev.laptop.org/ticket/12738#comment:2>
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