ve a hand held USB barcode scanner? If so then you can use it to
quickly read the battery serial number. I find them very useful when
dealing with a large number of batteries.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
D
in the log file and you can also see by
looking at the file. It's a bash script.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
to do it on 15
different XO's? That procedure is fine for the charge files.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
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
charge, so I think temperature there is less of a concern
- Run the tests at the same time in every XO
Yes. I believe that will work fine.
Note: I'm getting on a plane in a few minutes so this will be my last
e-mail until much later on today. Possible tonight or tomorrow.
--
Richard A.
es that in detail and then add decoding of the
values to my processing script next so I can take a look at the numbers.
--
Richard A. Smith
One Laptop per Child
chg_voltage.pdf
Description: Adobe PDF document
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
On 04/04/2011 06:05 PM, Richard A. Smith wrote:
> Attached to this email is q3a62a.rom. This is a pre-release of new XO
> 1.5 firmware with MPPT code enabled. It is also available at:
Sorry about the attachment. I was sending copies of this to all the
deployments to test and didn't
the 07 batteries.
> They are pretty old anyways.
Even if you plan to recycle the < 008 batteries please continue to
include them in the your tests. That way I can build up a profile of
what the _actual_ capacity loss over time vs my estimates
On 04/04/2011 06:22 PM, Richard A. Smith wrote:
> There is one known problem. On your very first flash you might lose the
> keyboard/mouse. You can prevent this by doing a full power cycle of the
> EC. ie no ext power and no battery.
New version:
http://dev.laptop.org/~rsmith/q3a62b.
On 04/05/2011 12:47 PM, Richard A. Smith wrote:
Latest version.
http://dev.laptop.org/~rsmith/q3a62e.rom
This one really fixes the keyboard problem. This is what I hope to be
the final test release.
In addition to the normal does this work for you. I need one specific test.
Please flash
bers the MPPT function.
Thanks for your testing. Can you give q3a62e a spin with the new
panel-pwr log? That would be useful info for me.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
seem to have a loose enough voltage regulation that some
of them trip the PV check and so it starts charging slowly. This quick
check feature is a new addition and I'm still fine tuning the values.
--
Richard A. Smith
One Laptop per Child
___
Devel
now if you had any chance to go further on this point.
I've modified my processing tool to output the lifetime numbers but
right now they don't appear to be useful. They don't make sense. After
you send the rest of the .csv files I'll summarize the results.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
without user intervention. And it's important to use
> pm-suspend because I use the pm-utils hooks to run some scripts after
> resume.
What sort of power source do you have? The XO battery won't last that
long in suspend.
--
Richard A. Smith
One Laptop per Child
___
On 04/28/2011 04:18 AM, James Cameron wrote:
2 Machines both: Q3B02 1.5 C4 prototype
#1 Mfg ID: 0x03 OEM ID: SD Name: SU04G Rev: 8.0 Date 2009-9
regular: 00:11:00
sparse: 00:06:19
#2 Mfg ID: 0x1d OEM ID: AD Name SD Rev 1.0 Date 2010-4
regular: 00:09:37
sparse: 00:06:00
--
Richard A
ks. from my experience with those racks, i suspect the effects
> won't be as severe as with vertical stacking.
Its the other way around. The original problem was reported by people
using the racks. We just theorized that people who stack them would
also have a similar problem.
--
Ri
they would be in a rack
but very similar. When I returned the laptops in the middle were very
hot. So hot I almost could not handle them.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
to adjust the test levels if a 1.75 is detected.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
On 07/07/2011 03:30 AM, Bert Freudenberg wrote:
Doesn't fix the download.laptop.org problem though:
bert$ traceroute download.laptop.org
traceroute to pedal.laptop.org (18.85.2.148), 64 hops max, 52 byte packets
Things have not settled yet .148 is still the problem IP.
--
Richard A.
On 07/29/2011 01:49 PM, Peter Robinson wrote:
I don't have mine handy but I have a OLPC serial adapater
What leads you to believe that the OLPC serial adapter needs firmware
downloaded?
--
Richard A. Smith
One Laptop per Child
___
nsive solution.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
/fstorture.sh which
uses sysrq to tell the kernel to do a hard reboot. Happy to replace
that with a direct EC command issued via debugfs if we have one.
I think you missed my response on IRC.
echo "4b:0" > /sys/kernel/debug/olpc-ec/generic
Will tell the EC to power cycle.
--
Richard A
oper key or use a signed firmware build.
And if you don't like it.. You can use the Serial Port on the XO... No?
No you can't. The firmware lockout happens before you get an ok prompt
on the serial port.
--
Richard A. Smith
One Laptop per Child
___
new EC
code and the latest OFW. I'd like to get some public testing before it
gets put in an official release.
http://dev.laptop.org/~rsmith/q2f04rc.rom
Thanks.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
ok at this when I get back.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
atal. However, if you are getting corruption then its a not a
matter of 'if' but 'when' until you hit the bits that will break your
battery.
You can dump the battery EEPROM with 'bat-dump-banks' and take a look.
You should not see a long series of 0xff or 0x00 in
On 10/27/2011 11:45 PM, Richard A. Smith wrote:
Is the XO running or powered off?
Is it for a XO-1.5 or XO-1.5?
Oops. XO-1 or XO-1.5
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org
On 10/27/2011 11:45 PM, Richard A. Smith wrote:
In this specific case the question was about human power so its
reasonable to assume that the setup would use a direct DC input.
Otherwise you are losing 30% or more of your power in conversion losses.
The number I use for the DC input is 25 watt
w decreases below the DC 17W input limit.
If you take the area under the curves then you get 30Wh for the "Off"
cases and 47Wh for the "Idle" case. The matching number I have for an
XO-1 in the "Idle" case is 56Wh. Its a good bit higher since the XO-1.5
has
gs is a new one.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
olar testing I often swap in different batteries. The 1.75
can consistently survive battery removal under moderate solar conditions
when connected to the OLPC 10W solar panel.
[1] Excluding connecting an external USB device drawing full power which
would be an extra 5W.
--
Richard A. Smi
#x27;m back in the US now and tried
this on a XO-1 in a system rather than just a bare board. I've
duplicated the problem. I'll work on fixing the problems and make a new
release.
--
Richard A. Smith
One Laptop per Child
___
D
Thanks to some great work by Paul Fox the previous problems with q2f04rc
should now be fixed.
Give this new version a try and see if it holds up:
http://dev.laptop.org/~rsmith/q2f04rd.rom
Thanks.
--
Richard A. Smith
One Laptop per Child
___
Devel
Given there haven't been any failure reports on this pre-release I think
its time to spin a new XO-1 release and then hand it off to .uy for them
to put it through the ringer before they roll it out.
Thanks to all the intrepid beta-testers.
--
Richard A. Smith
One Laptop per Child
olumn. Its in uAh. The range I use for "good" is 280-320
uAh. If your olpc-pwr-log is old enough that it doesn't have a net ACR
column then you can compute the value by subtracting the Full ACR value
in 6th column on the 1st line by the value in the last line in the log
USB devices
plugged in. the USB subsystem can provide up to 5W to an external
device. If you were to also draw 5W from USB then the draw would be 10W
and your battery life will be much less. In between 1 and 1.5h. (The
harder you draw a battery the less capacity it can provide so its not a
str
On 12/02/2011 11:38 PM, Chris Leonard wrote:
On Fri, Dec 2, 2011 at 4:12 PM, Richard A. Smith wrote:
If you wanted to help and you have a 1.5 you can. People with 1.5s can
provide accurate usage info they install the latest release, make sure the
date is set correctly, and then allow powerd
not as effective as it
will be on a C1 or later.
Also please make sure when you do power tests that you are using the
very latest builds as we are fixing ASR bugs daily.
When you are done with your battery tests please send the resulting
powerd logs to me.
--
Richard A. Smith
On 12/04/2011 02:13 AM, Richard A. Smith wrote:
One of the XO-1.75 B1 prototypes is now on loan with me, and I'll be
doing some testing on the battery life. (it's the one with the "high
school" non-membrane hard keys keyboard).
Please remember that its a B1 and that ASR is
ill
had quite some juice in the battery, something I found curious.
Was this on purpose or a glitch?
On purpose. Default powerd config will wake up and turn off the machine
if its been in-suspend for 4 hours.
--
Richard A. Smith
One Laptop per Child
___
On 12/24/2011 03:30 PM, Sameer Verma wrote:
Sugar leads to Rum, leads to power, leads to use of Sugar. Richard
needs to get to work on this one!
*gulp* I'm working on it right now.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing
text mode
bittorrent server that you could work with via ssh and then get it
working. I'm only a casual bittorrent user.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
in Boston I have powered a 1.75 directly (no battery)
from the OLPC 10W panel in January sun. Here's a video Chris Ball and I
shot Jan 9, 2012 showing a 1.75 completely powered by our 10W thin-film
PV panel.
http://www.youtube.com/watch?v=ITHNbOrPQyM
Hope this info helps,
--
Richard A. Smit
damage.
Unless you are trying hardware modifications I doubt you will do
anything worse than these guys.
http://www.olpcnews.com/forum/index.php?topic=2389.0
What exact are you going to try and push?
--
Richard A. Smith
One Laptop per Child
ooking at the
OFW source I think you want ' .temp-rise '.
ok .temp-rise
That should run the thermal test and print a pass fail message. It also
returns back a true or false on the stack for if the test passes or fails.
--
Richard A. Smith
One Laptop per Child
On 01/23/2012 12:23 AM, Jerry Vonau wrote:
Thanks, looking into that part of OFW code.
.temp-rise returns a ? from the OK prompt.
Ah... I see its part of the /switches node .
Try this:
ok select /switches
ok .temp-rise
--
Richard A. Smith
One Laptop per Child
test not measuring the difference in temperature
between the 2 modes of operation?
No. The heat spreader test runs the cpu in a tight loop and watches the
rate of change in cpu temp. If it rises to quickly then the heat
spreader isn't making good contact.
--
Richard A. Smith
One Lapto
On 01/23/2012 12:41 AM, Richard A. Smith wrote:
On 01/23/2012 12:23 AM, Jerry Vonau wrote:
Thanks, looking into that part of OFW code.
.temp-rise returns a ? from the OK prompt.
Ah... I see its part of the /switches node .
Try this:
oops.. forgot to get back out of that device node
the serial number of the failed motherboards or is that
not lost?
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
rating.
A thermal shutdown will be a hang since the clock to the CPU is stopped.
The thermal shutdown is not configurable and you can't bypass it.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
oring out common things for all
XO generations and the arch specific items. I can assure you it was not
"hidden" intentionally.
If you ask nicely and give us the necessary failure info I'm sure we can
tell you what you need to twe
W ext2/3/4 support.
Alternatively you could decompress the os image file on a desktop
machine, edit the file and then re-compress it.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
f several machines that have been used in the
classroom and send them to me and we can take a look at what sort of
profile you have.
What build are you basing your images off of?
--
Richard A. Smith
One Laptop per Child
___
Devel ma
to be enabled on a per-deployment basis but
if this becomes the default then I worry all our work on making
aggressive suspend/resume work will begin to fade away because its never
active.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing
eally amount to much.
If you run a base line test then we can estimate what your life would be
if for say you added 20% of idle suspend on top of that.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
x27;t have time to wait for a
'perfect' solution.
I wasn't suggesting that we don't come up with a workaround for your
current problem. I was commenting that adding a hook into sugars API
that globally disables suspend while collaboration is active is headed
in the wrong di
never woke up.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
after olpc-configure.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
not installed in an XO?
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
what are the symptoms?
You turn off the XO at night and then in the morning the battery is
12% less?
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
. Seems like each new
email has more new details.
- Battery does not lose charge outside the laptop.
- Tested the battery in 2 different laptops and the loss is the same.
Roughly 12% overnight.
- A different battery in those same laptops does not lose 12%
--
Richard A. Smith
One Laptop per Child
On 05/31/2012 08:18 AM, Richard A. Smith wrote:
So let me review and see if I have all the details. Seems like each new
email has more new details.
I'm asking you to verify that these facts are true based on your testing.
- Battery does not lose charge outside the laptop.
- Teste
he EC goes into
stop mode the red LED should go out after a few seconds. If you press a
game button the EC should wake up briefly and the led will turn back on
then in a few seconds go back out.
--
Richard A. Smith
One Laptop per Child
___
Devel ma
x27;m very suspect of this measurement. The 1.5 has a hardware floating
point unit and the 1.75 is still using soft-float. Its extremely
unlikely that the floating point performance on 1.75 is better than the 1.5.
--
Richard A. Smith
One Laptop
o
stop mode.
So hook up the EC serial port and log the output. Then charge up the
battery. b3 to get some readings. Disconnect external power and then b0
. You should see it go into stop mode. In 24 hours wake the EC up do
b3 to get a 2nd set of readings and then send the log output.
--
output is not valid.
Perhaps your comm settings are wrong? 115200,n,8,1 is what they
should be set to. Its exactly the same as if you were connected to the
OFW or Linux output.
The EC output is readable text and if you press enter with no command
you get back a prompt.
--
Richard A
you can send them to me.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
ttery. If not
then its some interesting combination of battery and XO.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
cific conditions and tries to reset
the SOC accordingly. Normal and expected.
If you want to understand whats going on the please run olpc-pwr-log so
you can observe the voltage and current and see when the EC changes
things based on those values.
--
Richard A. Smith
One Laptop per Child
___
en reported.
I'm happy to keep working on this if you don't mind the time.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
0234
Cambridge, MA 02142
+1 617-714-4589
Thanks for all your help so far.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
suspecting that there is some timing that may be marginal
since a reset fixes it I wonder if there is something that is going
wrong and messing up the 1-wire timing.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.
e XO keeps the power up on the SD card for several seconds after the
main power it turned off to help prevent this from happening.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
ces are
drawing too much current from the laptop and forcing a reboot. It
doesnt matter which usb port i plug it into.
What production rev model is your 1.5? Did you get it from the
developer program? I have a vague recollection that some of our earlier
runs of 1.5 had a USB issue like that.
d while an
association is in process and Paul was wondering if you could leverage
the existing infrastructure for this.
The thread dies after that. So I think anyone wanting this to get
integrated as a stock feature should investigate if you can use a NM
hook to send the DBUS message to pow
d XO-4 both have the ability to keep the USB bus powered during
suspend (with an EC firmware change) but on resume the kernel resets the
USB bus. I don't know if the kernel has an option not to do that.
--
Richard A. Smith
One Laptop per Child
__
ag unconditionally
bypasses OFW's check to make sure that the battery is not low prior to
starting a firmware flash. A battery that was very low but just plugged
up to power should still be considered low.
--
Richard A. Smith
One Laptop per Child
__
work for a setup
like Adam is describing in Haiti where they have laptops in the mix that
are secure. Unless they first un-secure every laptop a custom OS build
wth OOB would have to be signed by OLPC or Reuben would have to give
them a Haiti key thats installed via keyjector.
--
Richard A. S
,
or provide a keyjector to insert custom keys, upon their request.
Nod. Kejector for small deployments is new to me. I thought keyjector
was only for special cases.
I don't think most of the folks on say the support-gang list have any
idea that keyjector is an option for them.
--
Rich
me the dmesg output files and the dates reported by hwclock
If the date is not less than 1970 please hold that machine for further
inspection.
Hope this helps.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
time in polishing that script.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
al of them in the past and sometimes it
can be a bit frustrating. :)
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
a suspend event.
You didn't change your testing procedure did you? Something that would
allow for more idleness?
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
are behind a 71k laptop lease generation request. Which looks like
it still has another 40 hours to go before it finishes. If you
absolutely gotta have it now then send me your serial number and I'll
see if I can get it generated for you.
--
Richard A. Smith
One Laptop per
ls is requested.
Thanks.
--
Richard A. Smith
One Laptop per Child
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel
On 04/04/2013 04:42 PM, Richard A. Smith wrote:
Monday, 2013-04-08 activation.laptop.org will respond with an error to
any activation requests. It should be back up and running normally on
Tuesday. 2013-04-09.
Activation is back up and running. The old server is in read-only mode
if you
301 - 386 of 386 matches
Mail list logo
