Re: Re: tp_smapi 0.40-9 incompatible with thinkpad w520?
Many thanks for the info.
On Wed, 2011-05-25 at 11:16 -0300, Henrique de Moraes Holschuh wrote:
On Tue, 24 May 2011, CHERN Yen-Chieh wrote:
> > power adapter connected, the laptop cannot charge the battery! I
> > the incompatibility of tp_smapi with bios gives the wrong control on
> > battery charge threshold.
> If the driver did not manage to load in the first place, it should
> had no effect on the box.
> Anyway, to fully reset a Lenovo thinkpad:
> 1. Remove all power supplies, including all batteries.
> 2. Press the power button at least 10 times, keep it pressed down at
> least 4s each time.
> 3. Press the power button a final time for at least 12 seconds.
> That should drain all power that could keep the EC and a few other
> circuits alive. IBM ThinkPads shut down the EC more often (every time
> the box is powered off and disconnected from AC), so you usually don't
> need the above procedure.
> This will clear all configuration data that is not backed by the CMOS
> (which stores BIOS/EFI config). In all Thinkpads from 2009 and
> this procedure is known to reset all battery thresholds to the factory
> default. I very much doubt it changed in the 2010/2011 models.