#2190 HIGH Trial-3: mystery shut downs

[Zarro Boogs per Child]

#2190: mystery shut downs
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  Reporter:  Carla                |       Owner:  Carla           
      Type:  defect               |      Status:  new             
  Priority:  high                 |   Milestone:  Trial-3         
 Component:  embedded controller  |     Version:  BTest-2 Hardware
Resolution:                       |    Keywords:                  
  Verified:  0                    |  
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Comment (by rsmith):

 Replying to [comment:8 Carla]:
 > Replying to [comment:7 garysu]:
 > > For example , in 528 image. I think you can switch to console mode
 (ctrl+alt+F1) and execute command: "#cat /ofw/ec-name".
 >
 > In 528...ec = PQ2C17

 This is most likely the NiMH charging problem that is fixed in Q2C20.
 What's happening is that your batteries are incorrect set to 85% or 91%.
 To protect the batteries the EC will drop power when the voltage falls
 below a certain critical level.  Since the capacity is still thought to be
 >15% you don't get a red warning light.

 I think that upgrading to Q2C20 and then doing a full discharge, recharge
 cycle under Q2C20 will fix your problems.

 Please check what battery technology you have by switching to console
 mode, logging in as root and typing:

 cat /sys/class/power_supply/olpc-battery/technology

 If you have a NiMH battery it will print NiMH

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Ticket URL: <https://dev.laptop.org/ticket/2190#comment:9>
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