Re: SD/MMC cards, a year later

2010-08-20 Thread Tiago Marques
Have a look at the previous link I sent then. Counterfeiting may be your
problem.

Best regards,
Tiago

On Fri, Aug 20, 2010 at 2:03 AM, Ed McNierney e...@laptop.org wrote:


 
  Directly from the OEM or on the open market?
 

 Both.

- Ed


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Re: SD/MMC cards, a year later

2010-08-20 Thread Ed McNierney
I have read that article before, and counterfeiting isn't the only explanation. 
 Vendors are free to do whatever they want in terms of modifying a product with 
the same labeling.

- Ed

On Aug 20, 2010, at 5:34 AM, Tiago Marques wrote:

 Have a look at the previous link I sent then. Counterfeiting may be your 
 problem.
 
 Best regards,
 Tiago
 
 On Fri, Aug 20, 2010 at 2:03 AM, Ed McNierney e...@laptop.org wrote:
 
 
  Directly from the OEM or on the open market?
 
 
 Both.
 
- Ed
 
 

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[PATCH] Source user .Xmodmap, required for accessibility

2010-08-20 Thread Bernie Innocenti

Signed-off-by: Bernie Innocenti ber...@codewiz.org
---
 usr/bin/olpc-session |3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/usr/bin/olpc-session b/usr/bin/olpc-session
index 8d17e1d..145cac8 100755
--- a/usr/bin/olpc-session
+++ b/usr/bin/olpc-session
@@ -119,7 +119,8 @@ if [ -e $HOME/.olpc-active-desktop ]; then
fi
 fi
 
-# source custom user session, if present
+# source custom user xmodmap and xsession, if present
+[ -f $HOME/.Xmodmap ]  xmodmap $HOME/.Xmodmap
 [ -f $HOME/.xsession ]  . $HOME/.xsession
 
 # useful for performance work
-- 
1.7.2.1

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IN 40MIN: Contributors Program Mtg (#olpc-meeting, 2PM Boston Time, Friday)

2010-08-20 Thread Holt
Please all join us reviewing the latest OLPC/Sugar community projects 
over IRC Live Chat:

http://forum.laptop.org/chat

Then type at bottom:
/join #olpc-meeting


AGENDA:

* Fast Review of the 8 latest (greatest!) HW/Project Proposals -- please
join us advocating for, and/or reviewing shortcomings of these proposals:

1. Improving School Attendance Rate and Performance - Kenya and Uganda
2. University Class  Repair Center - Rochester Institute of 
Technology, New York

3. Wings Over Haiti - Port Jefferson Station, New York
4. Open 1-to-1 + XO1.5 + Sugar - Needham/Arlington, Massachusetts  Maine
5. Support Volunteer  School Server Development - Buenos Aires, Argentina
6. XO 1.5 Testing  Outreach in Portugal - Aveiro, Portugal
7. OLPC Developer Lab and Repair Center - Bangalore, India
8. Support Volunteer @ Rural School: XO Integration+Outreach - La 
Romana, Dominican Republic


* Which projects might you enjoy Mentoring below?!
 http://wiki.laptop.org/go/Projects
 http://rt.laptop.org/Search/Results.html?Query=Queue=%27contributors%27

* New projects  libraries -- teaching them Community Outreach:
 http://wiki.laptop.org/go/XO_Laptop_Lending_Libraries


1. Improving School Attendance Rate and Performance - Kenya and Uganda
  http://rt.laptop.org/Ticket/Display.html?id=66013
  http://e4nfoundation.blogspot.com
  [SPECIFIC SITE NEEDS TO BE POSTED OFF 
http://wiki.laptop.org/go/Projects ] 


  Requests 18 XO-1s over undetermined months

  Project Objectives:
  Concrete proposals with defined, measurable outcomes are much more 
likely to
  result in a laptop than it would be cool to play with these and demo 
them.


  1. Equip teachers and pupils with basic computer skills using the XO 
laptop.


  2. Improve understanding and performance of science subjects.

  3. Actively engaging children in their learning process.

  4. Increase school attendance rate in rural schools.

  5. Introducing another medium of learning and communication using XO 
laptop.



2. University Class  Repair Center - Rochester Institute of Technology, 
New York

  http://foss.rit.edu/blog
  https://fedorahosted.org/OpenVideoChat/
  http://wiki.sugarlabs.org/go/Math4Team/RIT
  http://rt.laptop.org/Ticket/Display.html?id=66041
  [SPECIFIC SITE NEEDS TO BE POSTED OFF 
http://wiki.laptop.org/go/Projects ]


  Requests 25 XO-1.5s incl 10 additional (possibly carcasses) for 
repair center.


  Project Objectives:
  On-going Course participation in Sugar Labs Math4 project via classes
  at RIT, Co-Op and Summer Research Programs

  Addtionally hoping to become a repair center.


3. Wings Over Haiti - Port Jefferson Station, New York
  http://www.WingsOverHaiti.org
  http://rt.laptop.org/Ticket/Display.html?id=66053
  http://www.facebook.com/group.php?v=wallviewas=0ref=mfgid=267976059380
  [SPECIFIC SITE NEEDS TO BE POSTED OFF 
http://wiki.laptop.org/go/Projects ] 


  Requests 6 XOs over 12 months

  Project Objectives:
  Open a K-8 School in Croix-des-Bouquets, Haiti, in collaboration with
  students and teachers at JFK Middle School in Port Jefferson Station,
  NY, to meet the following goals:
  1. Teach children in French and English, maintaining Creole as a
 language of honor with Haiti’s people.
  2. Foster the development of critical thinking skills via an emphasis on
 problem based learning (PBL) – minimizing rote memorization.
  3. Instill a sense of responsibility for humankind in student body
 through cultural exchange and local service to the community.


4. Open 1-to-1 + XO1.5 + Sugar - Needham/Arlington, Massachusetts  Maine
  http://itd-usr.blogspot.com
  http://rt.laptop.org/Ticket/Display.html?id=66253
  [SPECIFIC SITE NEEDS TO BE POSTED OFF 
http://wiki.laptop.org/go/Projects ]


  Requests 3 XO-1.5s over 6 months

  Project Objectives:
  Explore running Open1to1 (from Maine Open Netbook Initiative) on XO-1.5
  hardware, develop software solutions to encountered problems, demo
  machines to FOSS/ED crowd.


5. Support Volunteer  School Server Development - Buenos Aires, Argentina
  http://olpc.nicolascorrarello.com
  http://rt.laptop.org/Ticket/Display.html?id=66320
  [SPECIFIC SITE NEEDS TO BE POSTED OFF 
http://wiki.laptop.org/go/Projects ] 


  Requests 1 XO-1.5 (and Active Antenna if avail?) over 24 months

  Project Objectives:
  * Deliver consistent support for the OLPC platform.
Work on the School server distrubution to stabilize the platform, 
and add

resources for teachers and students such as:
  * Proyecto ALBA or schooltool , which is a platform for School
Administration (Managing students, grades, courses, grade reports, 
subjects,

teachers, etc. ...)
  * Review and Improve 3G modem support
  * Find and adapt a tool to manage centrally a big XS deployement (and 
maybe

even XO's)


6. XO 1.5 Testing  Outreach in Portugal - Aveiro, Portugal
  http://www.tmarques.com
  http://rt.laptop.org/Ticket/Display.html?id=66329
  [SPECIFIC SITE NEEDS TO BE POSTED OFF 

Re: SD/MMC cards, a year later

2010-08-20 Thread Hal Murray

 One frustration has been the rate of change in the SD industry. The dominant
 model from a vendor in a particular size and speed may only be in production
 for three or four months before being superseded.  Vendors are reluctant to
 properly inform Quanta of changes which might require retesting.   The
 result is that SD card certification is an ongoing process. 

How many do I have to buy before a distributor or manufacturer will 
cooperate?  Or how much extra does it cost to get them to cooperate?

Is that whole industry segment so focused on low-cost that nobody knows how 
to keep track of what they manufacturer/deliver?

What do cell phone manufacturers do?


-- 
These are my opinions, not necessarily my employer's.  I hate spam.



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Re: SD/MMC cards, a year later

2010-08-20 Thread John Watlington

On Aug 20, 2010, at 2:55 PM, Hal Murray wrote:

 
 One frustration has been the rate of change in the SD industry. The dominant
 model from a vendor in a particular size and speed may only be in production
 for three or four months before being superseded.  Vendors are reluctant to
 properly inform Quanta of changes which might require retesting.   The
 result is that SD card certification is an ongoing process. 
 
 How many do I have to buy before a distributor or manufacturer will 
 cooperate?  Or how much extra does it cost to get them to cooperate?

It appears to be a matter of cost more than volume, although it can be
difficult to differentiate the two.

 Is that whole industry segment so focused on low-cost that nobody knows how 
 to keep track of what they manufacturer/deliver?

Some manufacturers track this relatively well (although it can be hard to
get them to communicate this information).   Others (whom we don't deal
with at all) seem to have little to no control.

 What do cell phone manufacturers do?

A number of them are paying a premium for eMMC chip from a single
manufacturer to get around this.

Others just accept that failures are going to happen.   Note that
almost all the SD cards I've tested would work fine for average
use.   In my testing, I'm expecting cards to survive a usage that is
equivalent to filling half the card with new data (2 GB) every day for
five years.

Both Apple and Microsoft are using raw NAND flash chips in
their products as a way of maintaining more control.


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Re: [Server-devel] Schoolserver development in Uruguay

2010-08-20 Thread Tony Anderson
Hi,

I must confess that I am not current on this list. However, I'll toss in 
two cents.

First, I would like to see a build process that starts with a generic 
(Fedora) LAMP system. There should then be a build script that creates a 
schoolserver on this system. The current process (as used in Nepal) 
starts with the 0.6 image which locks it to Fedora 9. A deployment could 
then build their own script to add (or remove) services.

Second, The idea of the DataManager activity is to replace the current 
backup scheme by one controlled by the students. DataManager shows a 
Journal-like listing of all the journal items on the server and on his 
or her XO. If the item is on both, it is shown in Blue. If it is only on 
the server, it is shown in Cyan. The student can delete a Blue item 
(leaving it only on the server) or can click on a Cyan item causing it 
to be downloaded to the XO. A 'fuel guage' shows how much of the Nand is 
free as a guide on whether to delete some local items. All newly created 
items are copied to the schoolserver - provided they have an associated 
data file; otherwise they are deleted. This policy is based on my 
reading of the code that journal items which do not have a file are not 
'resumed' (in 0.82). The 0.82 scheme gives the student no way to avoid 
filling his Nand or controlling what gets saved or discarded (e.g if 
he/she deletes a Journal item on the XO, it will be deleted on the 
backup as well). One additional advantage is that the DataManager 
supports a 'commons' folder on the schoolserver which acts as a Journal 
store but whose items are available to all XOs. Currently, the commons 
folder contains a copy of the Sugar activities. This way students have 
access to all of them and can decide which they want to have local. If 
one is removed, it can be downloaded again. If the local store is lost 
(e.g. by the student changing XOs resulting from a hardware failure), 
all of the journal items are still accessible via the DataManager (given 
suitable update of the schoolserver to reflect the new serial-number).

Tony
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