Announcing the OLPC OS 10.1.2 final release!

Richard A. Smith richard at
Tue Sep 21 12:23:25 EDT 2010

On 09/21/2010 10:02 AM, NoiseEHC wrote:

> 3. There is something terribly wrong with suspend (most likely the EC
> code). Sometimes it just switches off the closed laptop. After I boot it
> there is plenty of power in the battery so it is not a low power
> situation.

Thats by design. There is an auto shutdown off at 4 hours of inactivity. 
  If you don't want that then change the powerd config file. in 
/etc/powerd set config_MAX_SLEEP_BEFORE_SHUTDOWN to "0" which will 
disable that feature.

> It happens regularly that after the XO-1 wakes up to reduce
> the back light brightness it cannot go to sleep again.

Please upgrade to the latest powerd (powerd 28) and see if your issue 

(you will need the --force option to rpm to install the package)
If it persists then please enable powerd tracing, recreate the problem, 
and then send the log file to pgf at and copy me please.  You 
can enable powerd tracing by:

sudo powerd-config =trace-on

The trace log is in /var/log/powerd.trace

/var/log is a ram filesystem so if the machine shuts down you will lose 
the trace.  If you need it across a shutdown then edit /usr/sbin/powerd 
and change the  LOGFILE= to somewhere disk based.  Note: that the path 
to the logfile must exist.

Richard A. Smith  <richard at>
One Laptop per Child

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