https://bugzilla.kernel.org/show_bug.cgi?id=41062





--- Comment #2 from Kamil Iskra <kamil.54...@iskra.name>  2011-08-23 15:01:37 
---
Oh yes, on my x201 I tested it back to 2.6.34 and saw the same error there.  So
this is not a recent regression.  For all I know, it might have always been
broken on these recent Thinkpad models.

I'm inclined to try to force the acpi battery module to always use mWh units on
Thinkpads instead of mAh, since the values displayed for mAh are clearly
incorrect.  On the older Thinkpads where I don't see this problem, the values
are always in mWh.  So perhaps the battery driver somehow wrongly figures out
that it should be using mAh units right after power up/reboot, and forcing it
to use mWh instead will magically fix things?  Or will this just change the
unit but the values will be too low by a factor of 10?

What would be the best way to try this?  Override battery->power_unit in
acpi_battery_quirks()?

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