[Trac #596] inconsistent battery charge state indications

Mark J. Foster mfoster at laptop.org
Tue Dec 19 22:00:47 EST 2006


Hi, Quozl!

You are a superb tester.  I love your reports, the detail, and the 
careful documentation of sequences and results.  Very well done, sir!

Cheers!
MarkF

Zarro Boogs per Child wrote:
> #596: inconsistent battery charge state indications
> ------------------------------------+---------------------------------------
>  Reporter:  Quozl                   |        Owner:  ted.juan
>      Type:  defect                  |       Status:  new     
>  Priority:  blocker                 |    Milestone:  BTest-2 
> Component:  hardware                |   Resolution:          
>  Keywords:  ray.tseng at quantatw.com  |  
> ------------------------------------+---------------------------------------
> Comment (by Quozl):
>
>  Now two units are charging their battery despite it being marked as full.
>
>  On restoration of battery and AC adaptor power over 40 minutes later, two
>  units Quozl 3 and Quozl 2 went into charge mode (roughly 1.2 amp current
>  shown on psu_0/current), and the other unit Quozl 1 did not.
>
>  Logs were captured, using the following fragment:
>
>  {{{
>  date --rfc-3339=seconds
>  cat /sys/devices/platform/olpc-
>  battery.0/psu_0/{current,voltage,capacity_percentage,status}
>  }}}
>
>  Timestamps below meaningless, except relative to the file itself.
>
>  quozl-3:
>  {{{
>  2006-12-20 01:45:40-05:00 1127 7518 100 present full
>  2006-12-20 01:46:40-05:00 1207 7555 100 present full
>  2006-12-20 01:47:40-05:00 1208 7574 100 present full
>  2006-12-20 01:48:40-05:00 1208 7588 100 present full
>  2006-12-20 01:49:40-05:00 1208 7598 100 present full
>  2006-12-20 01:50:40-05:00 1208 7605 100 present full
>  2006-12-20 01:51:40-05:00 1208 7608 100 present full
>  }}}
>
>  quozl-2:
>  {{{
>  2006-12-20 12:46:52-05:00 1126 7525 100 present full
>  2006-12-20 12:47:52-05:00 1130 7556 100 present full
>  2006-12-20 12:48:52-05:00 1132 7578 100 present full
>  2006-12-20 12:49:52-05:00 1135 7594 100 present full
>  2006-12-20 12:50:52-05:00 1135 7605 100 present full
>  2006-12-20 12:51:52-05:00 1135 7611 100 present full
>  }}}
>
>  quozl-1:
>  {{{
>  2006-12-20 12:46:13-05:00 7 6912 100 present full
>  2006-12-20 12:47:13-05:00 7 6912 100 present full
>  2006-12-20 12:48:13-05:00 7 6911 100 present full
>  2006-12-20 12:49:13-05:00 7 6911 100 present full
>  2006-12-20 12:50:13-05:00 7 6910 100 present full
>  2006-12-20 12:51:13-05:00 7 6910 100 present full
>  }}}
>
>   



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