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
Luiz -
I want to be clear that as far as I am aware OLPC has never lost interest in
supporting its mesh, and we have continued to look for ways to achieve its
original goals. In the XO-1.5 we opted for a WLAN radio that didn't have
built-in mesh support because it used much less power (in all
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
What's the command line for switching to GNOME if the icon in the
control panel has been removed?
cheers,
Sameer
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Devel@lists.laptop.org
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echo 'gnome' ~/.olpc-active-desktop
:-)
m
On Thu, Mar 24, 2011 at 2:24 PM, Sameer Verma sve...@sfsu.edu wrote:
What's the command line for switching to GNOME if the icon in the
control panel has been removed?
cheers,
Sameer
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Devel mailing
Hi,
On Thu, Mar 24 2011, Sameer Verma wrote:
What's the command line for switching to GNOME if the icon in the
control panel has been removed?
http://dev.laptop.org/git/projects/olpc-switch-desktop/tree/sugar/model.py
suggests that it's:
echo gnome /home/olpc/.olpc-active-desktop
and
Hi all,
the folks from the Austrian pilot project want to equip the XO-1s there with
SD cards. Are there any restrictions wrt size, speed, etc. that they should
be aware of when purchasing the SD cards? I'm particularly asking after
reading James' mention of seeing more issues with newer cards
On Thu, Mar 24, 2011 at 3:26 PM, Christoph Derndorfer
christoph.derndor...@gmail.com wrote:
Hi all,
the folks from the Austrian pilot project want to equip the XO-1s there with
SD cards. Are there any restrictions wrt size, speed, etc. that they should
be aware of when purchasing the SD cards?
On Thursday 24 March 2011 20:26:05 Christoph Derndorfer wrote:
Hi all,
the folks from the Austrian pilot project want to equip the XO-1s there with
SD cards. Are there any restrictions wrt size, speed, etc. that they should
be aware of when purchasing the SD cards? I'm particularly asking
Scott, Arnd,
thanks a lot for your comments and suggestions, much appreciated! :-)
Cheers,
Christoph
On Thu, Mar 24, 2011 at 10:36 PM, Arnd Bergmann a...@arndb.de wrote:
On Thursday 24 March 2011 20:26:05 Christoph Derndorfer wrote:
Hi all,
the folks from the Austrian pilot project want
Hi Rodolfo,
I think the idea is to use it as a storage device.
Christoph
On Fri, Mar 25, 2011 at 12:56 AM, Rodolfo D. Arce S.
rodolfo.arc...@gmail.com wrote:
Christoph:
You're talking about running the OS from the card?
Because you could use it as an external drive only. But I'm gessing
Hi Sebastian,
can you tell us a bit more?
You be recording with XO-1 units... using Record in Sugar? What
version of Sugar and Record? Or you'll use gstreamer directly to the
server?
One possibility would be to write to an NFS share -- but 'realtime'
recording of videos over wlan is tricky and
Hola Omar!
Guillermo's notes are good -- he is getting good results with that hardware.
Some more info
- Access Points tested with XO-1 and XO-1.5
http://wiki.laptop.org/go/Wireless_access_point_compatibility
- Some recommended HW and notes on how to choose HW - also look at
the server
Hi Guillermo, Omar.
Glad to hear about more XO deployments in Colombia.
Saludos desde Bogota.
On Thu, Mar 24, 2011 at 2:35 PM, Reuben K. Caron reu...@laptop.org wrote:
Guillermo,
It would be also interesting to know what kind of user density you plan for
when deploying these APs, e.g.
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