Adam Holt | 6 Feb 17:49 2016

Re: [UKids] StarTech USB2VGA discontinued--XO laptop to Smart Board ideas?

On Fri, Feb 5, 2016 at 7:26 PM, Tony Anderson <tony_anderson <at> usa.net> wrote:
Hi, Adam

With help from Gerri Light, the students at ggast are going out to neighboring schools to support the introduction of computing. Naturally, it is
unlikely that they would transport a projector or a whiteboard as part of the kit. (I imagine something like Nathan Riddle's deployment in a bag).

As I recall, the XO-4 has an hdmi port. That should be a practical alternative to access a projector (and, likely, a white board). However, for some reason,
Rwanda is deploying XO-1.75 and not the XO-4. However, if helpful, perhaps Gerri Light could bring an XO-4 on her trip in March.

Great thoughts.
I also got thoughtful feedback from Jeff http://Elkner.net in DC:

"We have Smart Boards in our classrooms where I work, and I've avoided
using them as anything but large projection screens due to the lack of
solid support for GNU/Linux systems.  There are supposed to be drivers
available for 32 bit Ubuntu systems, but I found the obstacles to
setting up the software and (even more importantly) finding the
license information required to use it to be not worth my effort."

Tony


On 02/06/2016 08:15 AM, Adam Holt wrote:
On Fri, Feb 5, 2016 at 7:09 PM, Tony Anderson <tony_anderson <at> usa.net> wrote:
The problem with projectors and white boards is $. The schools in Rwanda, for example, do not have funds to acquire them.
 
For sure.  http://www.rwandagirlsinitiative.org/ggast/ is one exception, where Smart Boards seem to pre-installed in this one "magnet" school for Rwanda girls.

We have several Sugar Activities which are designed to enable the laptop screen of connected laptops to show what is on the teacher's screen. This is a cost-free alternative to a projector. Unfortunately due to changes in the underlying software, these activities do not work. I would appreciate anyone who could take on the effort to get these running with the collab-wrapper. Specifically, there are Watch Me, ShowNTell, and the pair Classroom Broadcast and Classroom Viewer.
 
Great reminder, Thanks!
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Adam Holt | 6 Feb 01:15 2016

Re: [UKids] StarTech USB2VGA discontinued--XO laptop to Smart Board ideas?

On Fri, Feb 5, 2016 at 7:09 PM, Tony Anderson <tony_anderson <at> usa.net> wrote:
The problem with projectors and white boards is $. The schools in Rwanda, for example, do not have funds to acquire them.
 
For sure.  http://www.rwandagirlsinitiative.org/ggast/ is one exception, where Smart Boards seem to pre-installed in this one "magnet" school for Rwanda girls.

We have several Sugar Activities which are designed to enable the laptop screen of connected laptops to show what is on the teacher's screen. This is a cost-free alternative to a projector. Unfortunately due to changes in the underlying software, these activities do not work. I would appreciate anyone who could take on the effort to get these running with the collab-wrapper. Specifically, there are Watch Me, ShowNTell, and the pair Classroom Broadcast and Classroom Viewer.
 
Great reminder, Thanks!
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Adam Holt | 5 Feb 20:45 2016

StarTech USB2VGA discontinued--XO laptop to Smart Board ideas?

1) Both the USB2VGA and USB2VGA2 are now discontinued, to drive projectors (or Smart Boards etc) from an XO laptop:

   http://wiki.laptop.org/go/Adding_USB_SVGA

Do others recommend holding out with StarTech (buying used for about $15 is certainly an option) or rather, looking to another better-loved-brand in 2016?

2) Does anyone have experience hooking up Linux to classroom Smart Boards?

Is expanding the mouse/pointer size (and requesting an intentionally laggy-mouse-trail in Gnome) sufficient so all kids can vividly follow the projection screen?

Or is it not worth the battle -- for example if similar Windows/Mac drivers/software are so important for classroom-wide usability, and perhaps do not exist for Linux?
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Tony Anderson | 2 Feb 09:19 2016
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Re: how to install essential codecs from rpmfusion to, gstreamer 1.0 comparable to current script for gstreamer0.1

Hi, James

Clearly installing codecs for mp3 and mp4 does not meet anyones 
standards for software freedom. I notice this issue did not impact 
OLPC's decision to support importing WIndows XP.

I really have no idea now who this OLPC is that makes these interesting 
decisions. OS-builder is brilliant software but useless for needs of a 
deployment. First, it requires technical expertise and access to the 
internet. It is also not compatible with the 'locked' state of the XO
in Rwanda.

I have never used (or intend to use) the update feature. The software 
should not be changed during a school year (except in the case of some 
emergency defect in Sugar or Fedora). Between school years, the upgrade 
is accomplished by reflashing the XO to the new Sugar level.

Updating multiple laptops is made more difficult by another interesting 
decision - not to support nandblaster. However, this is a
manageable restriction (multiple usb keys and time).

I will try your recommendation to provide an update to the install of 
the codecs to gstreamer 1.0.

The switch to libav is an example of another interesting trend in open 
software, the substitute project - e. g. Libre Office, MariaDB, and libav.

There is no issue of refusal, I deeply respect your products. In this 
case, they don't fit into the deployment environment over which I have 
no control.

(by happenstance, I have to delay sending this email because my internet 
connection has been lost).

Tony

On 02/02/2016 01:00 AM, devel-request <at> lists.laptop.org wrote:
> Message: 2
> Date: Mon, 1 Feb 2016 18:53:56 +1100
> From: James Cameron<quozl <at> laptop.org>
> To:devel <at> lists.laptop.org
> Subject: Re: how to install essential codecs from rpmfusion to
> 	gstreamer 1.0 comparable to current script for gstreamer0.1
> Message-ID:<20160201075356.GO32478 <at> us.netrek.org>
> Content-Type: text/plain; charset=us-ascii
>
> In the GStreamer 0.1 to 1.0 transition, the codecs and dependencies
> changed, in particular gstreamer1-libav should be substituted for
> gstreamer-ffmpeg.
>
> These codecs you asked about are third-party software that do not meet
> the OLPC standards for software freedom.  The use of such software is
> unsupported; OLPC does not endorse or encourage its use.
>
> Also, OLPC doesn't don't support your method of changing the
> filesystem, instead we provide olpc-os-builder, because it works with
> our olpc-update feature.  The codecs you asked about can be added to
> your builder configuration;
>
> 	http://wiki.laptop.org/go/OS_Builder/Add_Restricted
>
> Many deployments use my restricted software builds, which are based on
> the open source builds, but are not available for public download.
>
> Using a restricted software build from me means you don't have to
> rerun the builder.  The build installs as usual, and has the codecs
> you asked about preinstalled.
>
> My restricted software builds are made in Australia from imported
> components, using the same infrastructure as the open source builds.
>
> If you refuse to use my restricted builds, refuse to use the builder,
> don't mind your changes being lost when you use olpc-update, and don't
> mind having to scale your change up to multiple laptops, then you can
> add codecs after install:

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Tony Anderson | 1 Feb 06:52 2016
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how to install essential codecs from rpmfusion to gstreamer 1.0 comparable to current script for gstreamer0.1

Your question is how to abstract the filesystem changes made by install of non-free codecs from the rpmfusion repository on a Fedora 18 system. On Mon, Feb 01, 2016 at 11:42:57AM +0800, Tony Anderson wrote:
Aside from my rants, this is the crux. If I could have a script which installs these files in gstreamer 1.0, I would be happy to upgrade. While I haven't made a try in a couple of years, I was unable to find where gstreamer 1.0 expects these libraries to be. The files are different for xo-1 and xo-1.5, xo-1.75, and xo-4. Meanwhile, jukebox-26 with gstreamer 0.1 works fine with 0.106. Tony

sudo cp libgstmad.so /usr/lib/gstreamer-0.10/ sudo chmod 755 /usr/lib/gstreamer-0.10/libgstmad.so sudo cp libmad.so.0 /usr/lib sudo chmod 755 /usr/lib/libmad.so.0 sudo cp libgstfaad.so /usr/lib/gstreamer-0.10 sudo chmod 755 /usr/lib/gstreamer-0.10/libgstfaad.so sudo cp libfaad.so.2.0.0 /usr/lib sudo chmod 755 /usr/lib/libfaad.so.2.0.0 sudo yum install gstreamer-ffmpeg-0.10.13-8.fc18.i686.rpm sudo ldconfig sudo rm -rf /home/olpc/.gstreamer-0.10/registry.i386.bin > > This script installs the necessary codes directly. I am sure the > ffmpeg install adds unnecessary code but I don't know how to break > this out. However, this script does not work with gstreamer 1.0 and > I have spent hours researching the documentation to find out what > happened to the libgst* libraries and the registry.i386.bin. The > only documentation I found requires installing the complete bad and > ugly libraries (granted, this was a couple of years ago so that > documentation may now exist - but gstreamer 0.1 works with no > problems so no need to spend more time on it).
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Adam Holt | 21 Jan 11:23 2016

XO-4 firmware upgrade blocked by EC 0.3.04 ?

I'm trying to help someone upgrade their XO-4 Touch to the latest firmware (Q7C05) but this isn't working, seemingly blocked by the EC which cannot detect good white batteries inside this XO (each white battery's we tried is fully charged, as verified by other XO's).

The ok prompt announces this XO-4 has firmware Q7B23 but when running "menu" at the ok prompt, manufacturing tag BV is set to Q7B01 FWIW.

When running "watch-battery" at the ok prompt, it responds:

   EC command result timeout

When clicking on battery within http://wiki.laptop.org/go/XO_Self_Test the screen goes all red, showing:

   Testing /battery
   Selftest failed due to abort

When running "test /battery" at the ok prompt, it responds:

   No selftest method for /battery

Any workarounds or things to try, regardless whether EC (Embedded Controller 0.3.04) or some other hardware issue on this very early XO-4 Touch might somehow be to blame?  Thanks for ideas!
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George Hunt | 17 Jan 20:04 2016
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OS builder generated ZD, 4 button install on unlocked XO1


I've been exploring an exchange with James Cameron:

  <I wrote>
 So then as I understand it, on an unlocked machine, the installers would need to type "fs-update 32018ht0.zd" at the OK> prompt to kick off the install.  Is that correct?

<James responded>
No, an unlocked machine will work like a locked machine when given the
four game keys held on boot.

I've been trying to generate an unsigned ZD image that will load with the 4 button install.

I've generated an unsigned fs0.zip and placed the xxx.ZD and fs0.zip in the root directory of a USB key.

The firmware finds the fs0.zip, but complains "no signature for our key list".

There's probably some setting in os-builder that I have not found yet.

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Adam Holt | 13 Jan 03:07 2016

Re: [support-gang] A XO-1 BUA ("keyboard") replaced with a XO-1.75 BUA

Thanks Nathan!  Am circulating to devel <at> laptop so we get more thoughts-

On Jan 12, 2016 8:32 PM, <nathanr333 <at> charter.net> wrote:
>
> A XO-1 BUA (Base Upper Assembly  -- "keyboard" [ http://flickr.com/curiouslee/5932732888 http://flickr.com/curiouslee/5932732736 ] ) replaced with a XO-1.75 BUA and no mechanical or software issues were observed,  (13.2.6 SD).  No modification needed.
> If someone can confirm that XO-4 BUA is same as for XO-1.75 BUA,  then the BUA from any XO model can be used on the XO-1.
>
> Previously posted here by others that lower half of any XO model could be used on the XO-1.
>
> I had been unable to obtain any answer as to the ongoing BUA compatibility question, so made the test with the first XO-1.75 that I got my hands on.  :)
>
> Nathan Riddle

[There are hundreds of XO's out there than that are being refurb'd, in Boston/Michigan/Nicaragua/Haiti especially, but we're only just getting started: Nancie Severs & Paul Fox helped tremendously in November!!]

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Gonzalo Odiard | 8 Jan 21:43 2016
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Debug android image on xo-4

Hi,
I need debug a android apk on the android image in use in ceibal.
It's safe connect my laptop USB port to the xo-4 usb port to debug
or should i usb the xo-4 debug connector on the otherboard?
Thanks,

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Peter Easthope | 3 Jan 20:53 2016
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http://wiki.laptop.org/go/Game_controller

Greetings to all for the New Year,

Paul Fox, pgf at laptop.org, Sat Dec 5 11:02:48 EST 2015,
> the "game controller" is simply 4 separate electrical contacts ...
> ...  use 'xev' to check ...

A "Hardware" section now in http://wiki.laptop.org/go/Game_controller .
Corrections, criticisms and suggestions welcome.

Can anyone tell where the nomenclature "KP_Up" and etc. originated?
A mainframe console in the 1960s?

Thanks,                ... Peter E.

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Peter Easthope | 3 Jan 20:49 2016
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(unknown)

Greetings to all for the New Year,

Paul Fox, pgf at laptop.org, Sat Dec 5 11:02:48 EST 2015,
> the "game controller" is simply 4 separate electrical contacts ...
> ...  use 'xev' to check ...

A "Hardware" section now in http://wiki.laptop.org/go/Game_controller .
Corrections, criticisms and suggestions welcome.

Can anyone tell where the nomenclature "KP_Up" and etc. originated?
A mainframe console in the 1960s?

Thanks,                ... Peter E.

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