On 16 May 2011 04:51, Samuel Greenfeld greenf...@laptop.org wrote:
In what build(s) is this occurring? And are you using a schoolserver or
not?
OLPC release 10.1.3 fixed some issues with XO 1.5's waking up in response to
multicast traffic on the network. This is necessary for Salut/under
On Tue, May 17, 2011 at 3:14 AM, Sridhar Dhanapalan
srid...@laptop.org.au wrote:
This is with OLPC OS 10.1.3 (XO-AU 10.1.3-au2 - we haven't made any
changes that would affect reliability of collaboration). The XOs were
registered and using an XS.
I've reported this at
It's looking to us that the aggressive power management enabled on the
XO can sometimes create confusion when children are collaborating on
activities.
Take for example a turn-based game like Memorise. If a child is
waiting for their turn, they might leave the XO untouched. In that
time, power
On 04/19/2011 03:52 PM, Pablo Iguiniz wrote:
Hello Richard,
This is Eng. Javier Iguiniz from Ceibal. Ismael has recently changed
work so I am now taking over part of his tasks, in particular the
testing related to the XO batteries.
Welcome Javier.
I tried to catch up with the plan, so we
Thanks! This is very useful information. I'll try to run some new tests and
try to look at the data more thoroughly. The new batteries' capacity is
pretty puzzling. I'll repeat the tests on these batteries and add a couple
more of new ones to get more results.
I think it's a good idea to think
On 04/05/2011 09:33 AM, Ismael Schinca wrote:
Thanks! This is very useful information. I'll try to run some new tests
and try to look at the data more thoroughly. The new batteries' capacity
is pretty puzzling. I'll repeat the tests on these batteries and add a
couple more of new ones to get
On 03/31/2011 03:43 PM, Ismael Schinca wrote:
Richard, Ceibal about to start working heavily in reworking how to
classify used batteries. Due to the number of batteries involved, we
were asked to devise a good enough procedure to estimate the battery
condition in less than 10 minutes. The plan
Sounds like someone we really really need to help out with the power
problems we have been havingf throughout SA These problems already
originated in España so I wouldn't be surprised if there is a link...
who knows, maybe we can fix it in a couple of days
optimism ALWAYS amigo!
kindr
Richard, Ceibal about to start working heavily in reworking how to classify
used batteries. Due to the number of batteries involved, we were asked to
devise a good enough procedure to estimate the battery condition in less
than 10 minutes. The plan would be to get several parameters from the
Hello everyone, I'm trying to perform some tests on XO battery life
performance and I have some questions which I couldn't find a clear answer
in the wiki or this list:
- When the battery level is critically low the OS (Sugar 0.88 based
Dextrose) performs a safe shutdown. I would like to know
ismael wrote:
Hello everyone, I'm trying to perform some tests on XO battery life
performance and I have some questions which I couldn't find a clear answer
in the wiki or this list:
i'm sure richard will chime in, but here's a start.
- When the battery level is critically low the OS
Thanks, for starters this is really useful, because it's not at all similar
to what I've been observed. The computer powers off with battery levels
between 10-15% and the led starts blinking around 5-10%. I'm using several
batteries on the same XO 1.0 computer. Granted, the batteries are not fresh
On 03/24/2011 08:55 AM, Ismael Schinca wrote:
Thanks, for starters this is really useful, because it's not at all
similar to what I've been observed. The computer powers off with battery
levels between 10-15% and the led starts blinking around 5-10%. I'm
using several batteries on the same XO
That's exactly what I wanted to know. How was the SOC evaluated when the
battery lost capacity. If there was some estimation on the battery loss or
just a full capacity assumption and then early poweroff.
I have several batteries, some of them pretty old (that's the idea). A
couple of S/Ns:
On 03/24/2011 09:15 AM, Richard A. Smith wrote:
Whats the serial number of your battery? You may also want to run a
olpc-pwr-log run with that battery so you can determine what the actual
capacity of the battery is.
Even better you are in a position to help me figure out how best to deal
On 03/24/2011 09:25 AM, Ismael Schinca wrote:
I have several batteries, some of them pretty old (that's the idea). A
couple of S/Ns:
00602 080616 110002384
00602 080608 11600
The mfg is embedded in the serial number pos 6-11 format YYMMDD
So these 2 batteries where produced 2008/06/16
We would really like to have a relatively accurate result *as fast as
possible *of the condition of a battery. That's what I'm trying to get to.
I could run the olpc-pwr-log on 15 batteries aprox. Used batteries but in a
probably good condition.
I'm also trying to get some really bad but
OK. Just read this email.
So the plan would be:
- Start from a fully charged battery, run the olpc-pwr-log script until
poweroff.
- Remove battery, plug XO, run script and insert battery until fully
charged.
If you would prefer a different test please let me know.
Ismael
2011/3/24 Richard A.
On 03/24/2011 09:53 AM, Ismael Schinca wrote:
OK. Just read this email.
So the plan would be:
- Start from a fully charged battery, run the olpc-pwr-log script until
poweroff.
- Remove battery, plug XO, run script and insert battery until fully
charged.
Yes. Or the other way around if you
On 03/24/2011 09:53 AM, Ismael Schinca wrote:
If you would prefer a different test please let me know.
oh and if this is a build that running powerd then you need to stop it
or disable power management and turn off dpms screen blanking. On 1.5
dpms is not active but it is on XO 1.0. The
On 03/24/2011 09:45 AM, Ismael Schinca wrote:
We would really like to have a relatively accurate result *as fast as
possible *of the condition of a battery. That's what I'm trying to get to.
I could run the olpc-pwr-log on 15 batteries aprox. Used batteries but
in a probably good condition.
On 03/24/2011 10:31 AM, Richard A. Smith wrote:
If you run _exactly_ the same test under the same conditions. Same
temperature, same test duration, same XO, then it might be possible to
compare the current voltage,
Battery temperature will also be a concern. If you test the discharge
I'm planning to use different XO's, all of them 1.0 hardware. I definately
won't be able to finish today because they all have different OS images and
I think it would be best if I update them all (even for future tests). Maybe
tomorrow, maybe monday.
I think it will be very hard to perform the
ismael wrote:
OK. Great. Is the attached version newer than the one in Sugar 0.88??
almost certainly.
paul
Because the latest dextrose image is mainly based on Sugar 0.88
2011/3/24 Richard A. Smith rich...@laptop.org
On 03/24/2011 10:41 AM, Ismael Schinca wrote:
I'm
Hi,
I've finished working on the power management code, ready for review
before I sent it upstream if anyone is interested.
The patches are here:
http://dev.laptop.org/~dsd/20110114/
The architecture is a bit different from before:
olpc-xo1-pm (previously olpc-xo1) is a driver for the core
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