[ltp] battery fails to charge - fc6 - t41

[Henrique de Moraes Holschuh]

On Tue, 27 Mar 2007, Dan Sawyer wrote:
> The package is installed and the /sys/devices/platform/smapi/BAT0 files 
> are populated. This is a T41, the thresh features are not implemented.

Pity :-(

> Are battery charge functions a BIOS or OS function? Which one is 
> responsible for controlling charging?

Usually the EC (embedded controller) is.  The BIOS talks to it.
Unfortunately, we have no idea how to talk directly to the EC to set
thresholds.

Note that it *is* possible that in the T41 the thresholds are implemented by
the BIOS using SMM (system management mode).  Still, we have no idea how to
talk to it, anyway.

If you still have Windows installed on that machine, IBM's battery
management utilities could be of some use to find out what is happening...

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh