[ltp] Re: [Ubuntu 10.04] sysfsutils not working

Christoph Bier linux-thinkpad@linux-thinkpad.org
Fri, 04 Jun 2010 17:11:03 +0200


Tino Keitel schrieb am 03.06.2010 18:35:

> On Thu, Jun 03, 2010 at 11:51:54 +0200, Christoph Bier wrote:
>> Hello,
>> 
>> corresponding to my posting with the Message-ID
>> htopo4$4pr$1@dough.gmane.org I think sysfsutils is just not working
>> anymore on my Ubuntu machine. The battery is always fully loaded
>> although stop_charge_thresh is set to 75:
>> 
>> chris@skull-tp:~$ cat
>> /sys/devices/platform/smapi/BAT0/stop_charge_thresh
>> 75
>> chris@skull-tp:~$ cat /sys/devices/platform/smapi/BAT0/remaining_percent
>> 100
> 
> [...]
> 
>> How can I investigate further?
> 
> I think a good start is to check the state when the battery is actually
> charged. Also, the smapi setting is no guarantee that the battery is
> never charged obove 75%. If you plug out the A/C power, remove the
> battery, the smapi setting is lost. If you now put the battery back and
> connect A/C power, the battery is charged until it is full unless you
> start Linux and restore the smapi setting.

Thanks, you are right! Sorry for the noise. I was quite sure that I
did not plug out AC and remove the battery at the same time. But
obviously I did.

Best
Christoph
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