#3610 BLOC First D: Mystery shutdown without red warning LED
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Sun Oct 14 13:13:51 EDT 2007
#3610: Mystery shutdown without red warning LED
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Reporter: MitchellNCharity | Owner: mlj
Type: defect | Status: new
Priority: blocker | Milestone: First Deployment, V1.0
Component: hardware | Version:
Resolution: | Keywords:
Verified: 0 |
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Comment(by rsmith):
Replying to [comment:3 kimquirk]:
> Turns out there is a problem with the updating of battery information,
and so today (build 616), laptops without a power adapter will just fail
without indication. This is a blocker for FRS.
>
EC is what sets the light red. Regardless of what sugar is doing the
battery light should have gone red.
The firmware here appears to be q2c28. Since that release I have re-
worked some of the EC led code to fix a bug where the red light would not
blink on error.
This fix in in q2c28i.rom (or greater. 'j' is the latest at the moment)
which can be found in
http:// dev.laptop.org/~wmb
Its seems to work correctly for me. Please re-test using the latest
firmware.
Note: There is a period of about 3 or 4 seconds when you first insert a
battery until the BMS system as a good "feel" for the battery being low or
not. So if have a XO that is totally unpowered, you insert a low battery,
and press the power button, then the XO will be several seconds in to the
boot before the light turns red.
--
Ticket URL: <https://dev.laptop.org/ticket/3610#comment:4>
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