Re: Acoustic Measure Problem

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Tomeu Vizoso wrote: | On Fri, May 9, 2008 at 5:47 PM, Benjamin M. Schwartz | <[EMAIL PROTECTED]> wrote: |> There is a much larger point here, though. I would love to get more |> (any!) feedback from teachers about my code, so I

Re: Acoustic Measure Problem

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Greg Smith (gregmsmi) wrote: | I ask because there is recent feedback on mesh issues from a teacher at | Lambayeque, Peru http://wiki.laptop.org/go/Lambayeque#Inconvenientes and | a teacher in Uruguay has asked about supported Mesh features too. The |

Re: Gamepad and Rocker Images?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Robert Myers wrote: | Are there any images (.png or whatever) of the rocker and gamepad keys? | | Foe example, to use if you wanted to include an image along with 'press | square gamepad key' or 'press rocker left' in documentation? | | I couldn't find

Datastore and Core Data

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I suggest that people interested in datastore design should become familiar with Apple's "Core Data" (http://en.wikipedia.org/wiki/Core_Data). Core Data is a strongly typed high-level data persistence framework provided as an operating system service.

Re: Journal Suggestions

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Eben Eliason wrote: | In other words, the Journal and the interactions with it are so tied | to the system already, that one would still have to manually copy | pretty much anything one wants onto the SD card or external device | anyway. The only diff

Re: Journal Suggestions

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Benjamin M. Schwartz wrote: | If you hover over either device in the Journal, you can be | presented with an option like "Format this device as Advanced Storage". Except the devices are now in the frame. I mean in the frame. - --Ben

Re: Journal Suggestions

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Eben Eliason wrote: | On Tue, Apr 29, 2008 at 3:25 PM, James Simmons | <[EMAIL PROTECTED]> wrote: |> Eben, |> |> You bring up some points I hadn't considered. I agree that thumb drives |> and the like probably shouldn't have their files modified if

DOSEMU Activity

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 To muddy the waters further, I present http://dev.laptop.org/~bemasc/DOSEdit-1.xo Whereas DOSConsole is an activity that uses a dos console to demonstrate a framework for Wine-based activities, DOSEdit is an activity that uses DOS Edit.exe to demonst

Re: New joyride build 1897

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 [EMAIL PROTECTED] wrote: | what's the reason for adding these libraries? It was an accident, due to an undesired dependency. It's already fixed in 1898. See http://dev.laptop.org/~bert/joyride-pkgs.html - --Ben -BEGIN PGP SIGNATURE- Version

Request for Project Hosting: wine-activities

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 1. Project name : wine-activities 2. Existing website, if any : http://dev.laptop.org/~bemasc/DOSConsole-3.xo 3. One-line description : Turn your Windows application into a Sugar Activity (if it runs in Wine). 4. Longer description

Working Wine Activity

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Short: You can try out the simplest possible Wine-based activity here. It's really working now. http://dev.laptop.org/~bemasc/DOSConsole-3.xo Long: This Wine-based activity incorporates the latest fixes to Wine (0.9.60), which make the Desktop window

Re: Better anti-aliasing

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Bert Freudenberg wrote: | One thing that someone (Albert IIRC) proposed was doing a better | filtering job than the DCON does - it uses a simple 5-tap filter which | adds a noticeable amount of blur. It is still vital to do filtering, | otherwise a sin

Re: Auto backlight management?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Jordan Crouse wrote: | On 24/04/08 22:10 -0700, [EMAIL PROTECTED] wrote: |> this is the one drawback to the fantasic screen, any light from the |> backlight that gets through is colored by the screen. it can be made to |> appear white by allowing all t

Re: Ad-hoc Networking

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 John Gilmore wrote: | The IETF "ZeroConf" protocols provide for self-assignment of IP | addresses in such a case. (The same thing happens if you plug two | laptops together with a short Ethernet cable and no DHCP server.) | | Does the OLPC Presence Se

Re: Joyride

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Benjamin M. Schwartz wrote: | Simon Schampijer wrote: | | Chris Ball wrote: | |> Hi, | |> | |>> Can anybody suggest a relatively functional Joyride with the new UI | |>> ? I'm at the end of a think pipe, and prob

Re: Joyride

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Simon Schampijer wrote: | Chris Ball wrote: |> Hi, |> |>> Can anybody suggest a relatively functional Joyride with the new UI |>> ? I'm at the end of a think pipe, and probably won't have time to |>> download a second image if the first is

Re: Ad-hoc Networking

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 John Gilmore wrote: | The presence implementation only works on access points and on meshes -- | but not on non-meshed, ad-hoc 802.11. The vast majority of computers | with 802.11 don't have mesh, but they would benefit from being able to | "see" near

Re: Adding mpeg playback

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Bernie Innocenti wrote: | They asked me if there would be problems for Turkey and I | thaid that while I did not know their IP law, I hear it's | not a problem in many European countries. | | Do you know better? Read this: http://www.news.com/8301-107

Re: Do we ever want to bind more than 8 multicast MAC addresses?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ricardo Carrano wrote: | Assuming this is correct, than some questions follow. | - Is 4 a reasonable limit (is the XO capable of more in terms of processing | and memory?) The XO is definitely capable of more, especially for activities like Chat that

Re: Handling TamTam Resources...

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Olivier Bélanger wrote: | Is there a way to let all TamTam activities have access to a common | directory? No. Activities are untrusted code. The security design assumes that every Activity is a trojan horse, unless the user specifically requests ot

Re: Usability testing

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Carol Lerche wrote: | A good example is the rococco color picking widget. According to my | observation this is very difficult for small children to use, and to learn. Perhaps you would care to look at http://wiki.laptop.org/go/Designs/Toolbars#11 A

Re: RPMs and Activity bundles

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Marco Pesenti Gritti wrote: | It depends on the contents of the rpm. In some cases you would need to | rebuild... | OK, how about instructions starting with a SRPM? - --Ben -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.7 (GNU/Linux) Comment: Using

RPMs and Activity bundles

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I am trying to construct an activity that is simple, but depends on a Fedora 7 RPM that is not installed by default. The security system prevents my activity from installing any RPMs, as it should. However, I would like to include this software withi

"Chilling Effects" paper at USENIX

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 A paper called "Freezing More Than Bits: Chilling Effects of the OLPC XO Security Model" will be presented next Monday at USENIX UPSEC'08 [1]. The author has kindly posted the paper at [2], which I discovered after Google took me to her weblog [3]. I

Re: [sugar] Choosing "defaults" for the activity ring

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Eben Eliason wrote I prefer option (1) because it's the behavior I would want as a user. With option (1), it's more obvious that new activity bundles have been installed. It's also more straightforward to implement. | Option (2) is somewhat more comp

Re: [sugar] Mini-Conference Proposal: Toolbars & Tabs

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Greg Smith (gregmsmi) wrote: | Thousands of hours of teacher training have already gone in to the | current XO deployments. Any dramatic change to the look and feel of the | GUI will largely negate that. I strongly disagree; indeed, I feel precisely t

Re: Becoming involved in XO software development?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Rebecca Janine Wise wrote: | This is a general question. I work with various Non-Profits and have become | interested in developing for the XO. Can anyone recommend a path on how to | become involved in some aspect of the software development side of t

Re: RSSI value questions

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ryan Crawford Comeaux wrote: | I'm looking to build an application through Google's Summer of Code for the | school server that uses wireless location detection methods to monitor and | approximate the physical location of all nodes within the mesh. |

Re: Mini-Conference Proposal: Frameworks for Collaboration

C. Scott Ananian wrote: | On Sat, Mar 29, 2008 at 1:47 AM, Benjamin M. Schwartz | <[EMAIL PROTECTED]> wrote: |> We will have an open discussion of how to build a framework that will ease the |> creation of reliable collaborative activities. I will also outline a proposal |> for

Mini-Conference Proposal: Frameworks for Collaboration

Title: Frameworks for simultaneous and sequential collaboration Abstract: The OLPC sharing design encompasses two rough classes of sharing. In the simultaneous case, a number of students join a shared Activity and all edit a document together in real time. In the sequential case, students make l

Re: Automatic transfer/update of activities on the mesh (Was: Sharing behavior in the core Read activity)

On Tue, 2008-03-25 at 13:46 -0400, Eben Eliason wrote: > Naturally, there are some security concerns, but those could be easily > addressed, I believe, with the usual signing mechanisms. Updates to > activities would only be transparent if the update was signed, etc. I agree. For a first impleme

Re: [sugar] Educational Toolkit

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Deepank Gupta wrote: | Q.1 The main difference between the toolkit and other stand-alone activities | will be its integration with Sugar. All the other activities like Read or | games are run on a use-to-use basis. But, this software will be run at all

Re: Maintaining Activity Packs

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Michael Stone wrote: | * to the extent that we are able, we should record the compatibility | matrix between builds and activities Once upon a time, there was going to be a build called "First Release to Service", and its number was to be 1. ~Fr

Re: olpc-update, update.1, and activities

On Thu, 2008-03-13 at 15:59 -0400, C. Scott Ananian wrote: > Upgrade via > olpc-update will work fine, but you'll have to use the customization > key (without the four-button erase-everything step) or other mechanism > (download, unzip) to install the activities. This is absolutely unacceptable fo

Re: drupal on OLPC?

On Wed, 2008-03-12 at 21:47 +0100, bert boerland wrote: > Dear All, > > As a member of the Drupal community, I would like to see the Open > Source CMS Drupal ship on the OLPC. The OLPC XO is virtually the worst possible server platform. It is highly mobile, has little memory or disk space, usua

Re: [PATCH] Install customization packages left for us by a USB key.

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Michael Stone wrote: | On Fri, Mar 07, 2008 at 10:11:06AM -0500, C. Scott Ananian wrote: |> Classic privilege-escalation attack. | | /, /home, and /home/olpc, are only writable by uids 0 and 500. Both uids | 0 and 500 have direct access to uid 0. There

Re: Installing RPMS via Customization Key

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 C. Scott Ananian wrote: | On Fri, Mar 7, 2008 at 9:37 AM, Benjamin M. Schwartz | <[EMAIL PROTECTED]> wrote: |> It is difficult to comment on this without more detail on "USB |> customization keys". My understanding was that su

Re: Installing RPMS via Customization Key

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Michael Stone wrote: | It's completely unsafe to use the new USB customization keys to execute | software located on-key or on-NAND because any opportunity for arbitrary code | execution as uid 0 represents a serious threat to our first-boot activation

Re: Need Help

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Michael Stone wrote: | On Tue, Mar 04, 2008 at 08:22:31PM -0500, Benjamin M. Schwartz wrote: |> Michael Stone wrote: |> | My central error-handling goal has been to compactly express my |> | assumptions in a form that will prevent them f

Re: Need Help

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Michael Stone wrote: | On Tue, Mar 04, 2008 at 06:16:34PM -0500, Benjamin M. Schwartz wrote: |> According to my software engineering professors, a program should |> always handle any input data without an assertion failure. Assertions |>

Re: Need Help

On Tue, 2008-03-04 at 17:37 -0500, Michael Stone wrote: > On Tue, Mar 04, 2008 at 10:12:35AM +0100, Tomeu Vizoso wrote: > > On Tue, Mar 4, 2008 at 6:54 AM, Benjamin M. Schwartz > > <[EMAIL PROTECTED]> wrote: > > > Waqas Toor wrote: > > > | can anybody ple

Re: Need Help

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Waqas Toor wrote: | Hello All, | | I am having a problem and unable to find any solution regarding that, | I have written an activity in using GTK and glade, and have sugarized | it according to the hello world tutorial in wiki. but still i dont | know

Re: Testing 200 XO's in two weeks time for Nepal's pilot

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 John Gilmore wrote: | I recommend that once you have developer keys, you leave the machines | unlocked. You are going to be running a lot of unsigned builds in the | future -- you're customizing your builds. Eventually, there must be a way for countr

Re: Semi-successful Bayer-mode capture from internal camera

On Thu, 2008-02-28 at 16:25 -0800, Peter Krenesky wrote: > Are you using gstreamer or are you just accessing the camera with v4l? > > If you do not change the parameters V4L will just use the current > settings that were set by the last program to use it. > > -Peter I'm using pyvideograb, which

Re: controlling AGC of camera on the XO

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Arjun Sarwal wrote: | I need to turn OFF the AGC of the camera on the XO within my Activity. I recommend that you simply process the input in Bayer mode, which automatically disables AGC, white-balancing, gamma correction, and other image manipulation

Re: Axis of time: up/down rather than right/left?

On Thu, 2008-02-21 at 15:21 -0600, Jameson "Chema" Quinn wrote: > The problem with left/right is that it is biased towards LTR languages > (or it requires extra L10N work), and it inevitably inconsistent with > the up/down axis necessary for lists. When running in an Arabic locale (or other RTL l

Re: suspend vs. SD card

On Thu, 2008-02-21 at 10:18 -0500, Mikus Grinbergs wrote: > It appeared to me that the 'resume' following the suspension had > re-interrogated the SD card (was power to it turned off by suspend?) > and had somehow "mixed up" access to it. My recovery was to reboot. This is bug #4013: http://de

Re: Salut and Suspend/Resume issues

On Tue, 2008-02-19 at 13:11 -0500, Giannis Galanis wrote: > > The wakeup required is T minutes for every T minutes. > Actually you would need to be awake for >T minutes > and suspended for > So for T=10min, as in this case: > 9off, 11on, 9 off, 11on > > but this is not very effective in term

Re: Salut and Suspend/Resume issues

On Tue, 2008-02-19 at 12:29 -0500, Giannis Galanis wrote: > The avahi works is that every several minutes(a predetermined timeout) > each host will send multicast request for all peers in its list. > Then all peers receiving this request will send a multicast reply. > > The packets are multicast b

Re: Salut and Suspend/Resume issues

On Tue, 2008-02-19 at 10:02 -0500, John Watlington wrote: > We ALWAYS have multicast traffic. Blindly waking on each > received multicast packet will ensure that we only sleep for > milliseconds. What is all this multicast traffic? If I am sitting idle on the network, why is there constant multi

Semi-successful Bayer-mode capture from internal camera

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I have created a stepwise procedure for experimenting with Bayer mode capture: 1. su - 2. yum install python-imaging 3. wget http://dev.laptop.org/~bemasc/bayertest.tar.gz 4. tar xzvf bayertest.tar.gz 5. cd bayertest 6. python bayertest.py bayertest.

Re: bar code scanners on the XO

On Fri, 2008-02-15 at 16:24 -0500, Walter Bender wrote: > Has anyone used a USB bar code scanner on the XO? Any recommendations > as to a model we could use for an inventory project? As you are probably aware, it is possible to read barcodes from the camera, using software analysis. See for examp

Re: Serious side effect of #6299 (silencing salut so gabble can connect)

On Thu, 2008-02-14 at 16:58 +0200, Morgan Collett wrote: > We're testing patches to Presence Service to not start salut (or stop > it) for a while to give gabble a chance to connect to the schoolserver. > (a) Touch all these activities now and port them to the newer cleaner > API offered by PS/Sug

Re: problems using the measure activity.

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 [EMAIL PROTECTED] wrote: > however when we attempted to demo the measure activity we just could not > figure out how to make it work. we got it working three times over the > weekend (among a dozen or more tries). > > we has laptops with the 650 bui

Re: python activities startup

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Tomeu Vizoso wrote: > If I understand correctly how that fork() would work, what we would be > saving in that case is the reading of modules, but the python code at > the module scope would need to be executed anyway. I am no expert, but, without evid

Re: python activities startup

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Tomeu Vizoso wrote: > By the data in #5228, looks like more than 50% of time is spent > importing modules. dbus, telepathy and pygtk make for more than 30% of > _total_ startup time. There has been much talk about fork()ing the python interpreter for

Re: Activity conventions?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 ffm wrote: > On Feb 5, 2008 5:50 PM, Kent Loobey <[EMAIL PROTECTED] > > wrote: > Can someone point me to a list of the OLPC "Activity" conventions. > http://wiki.laptop.org/go/HIG If you have questions about the HIG or ac

Re: Using Matplotlib in Measure Activity

On Thu, 2008-01-31 at 01:32 -0500, Arjun Sarwal wrote: > For some time I have been thinking about extending the functionality > of Measure Activity into a tool that also allows for graphical > analysis of data acquired not just from sensors/mic but data acquired > from any source. > (1) A standard

Re: [OLPC library] 'OLPC-Health' takes off !!- MATLAB for OLPC?

On Mon, 2008-01-28 at 08:34 -0700, Brown, Henry, DoIT wrote: > Could Matlab create Greene Chip DNA microarray software to run on > OLPC? > http://www.mailman.hs.columbia.edu/news/Lipkin_GreeneChip.html > http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=2573 > http://laptop

Re: PDF reader not really user friendly...

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 [EMAIL PROTECTED] wrote: > after all the qwerty keyboard layout was designed to slow typing so that > the mechanical typewriters could keep up. there are better layouts for > typing (even some standardized ones like doevak) but the OLPC ships with >

Re: OLPC News 2008-01-26

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Walter Bender wrote: > 5. Batteries: Carla Gomez Monroy reports from Mongolia that the > batteries are not lasting as long as expected. The extreme cold was > the first suspect. Richard had Carla collect data via olpc-logbat and > ran some tests of his

Re: power management experiences with joyride-1572

On Wed, 2008-01-23 at 11:47 -0800, Hal Murray wrote: > > Yes, the resume operation is triggered by user input, or a wireless > > packet addressed to the host (or some battery-related events). It > > can't be triggered by anything in software unless that's organized > > ahead of time; the CPU is tu

Re: Getting pressure values from the touchpad

On Wed, 2008-01-23 at 13:27 -0500, Bernardo Innocenti wrote: > Arjun Sarwal wrote: > > > How can I obtain the value of the pressure applied at any point on the > > touchpad ? > > The PenTablet does not send pressure information. > The GlideSensor does, and I think it's 4 bits. This is, I think,

Re: Testing the Wireless driver changes

On Fri, 2008-01-18 at 14:47 -0500, Dan Williams wrote: > So wait, what's going on here? I thought the devices attached to school > servers were just run-of-the-mill USB 8388 devices like the 8388 > daughterboard of the XO, but different connector, right? > > What is the post-boot firmware flash f

Re: New joyride build 1538

On Tue, 2008-01-15 at 13:45 -0500, Build Announcer Script wrote: > +make.i386 1:3.81-6.fc7 > +openldap-servers.i386 0:2.3.34-4.fc7 > +perl.i386 4:5.8.8-27.fc7 > +perl-libs.i386 4:5.8.8-27.fc7 Perl? Really? --Ben ___ Devel mailing list Devel@lists.lapt

Re: libglade?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Jameson "Chema" Quinn wrote: > I'm still noodling around, trying to settle on a good design for > develop. It looks as if libglade would be nice to have. Prior to this summer, I had never written a GUI. I was creating an Activity, so I tried Glade an

Re: coping with lost connectivity

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Simon McVittie wrote: > On Sat, 12 Jan 2008 at 12:00:02 -0500, Benjamin M. Schwartz wrote: >> This is precisely what I am saying. Telepathy should only register a >> disconnect >> if there is no way to route between two XOs. T

Theora and Video Conferencing

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 There has been a lot of discussion of video conferencing using the XO, and a demo activity was created last year. However, our video codec of choice, Theora, has not been able to encode fast enough to do real-time streaming at acceptable quality. As

Re: 3dpong request for hosting

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Samuel Klein wrote: > Benjamin M. Schwartz writes: >> Samuel Klein wrote: >>> Yes, it would help to have distributed network services such as ones >>> that let you say "join the next available connect/pong game" &g

Re: mesh portal discovery

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Sjoerd Simons wrote: > Activities need to cope with people coming going anyway. If your in a mesh > only > environment, the mesh can be split into two or more parts at any point and > later on merge again. Salut will model that as people disconnecting

Re: 3dpong request for hosting

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Samuel Klein wrote: > Yes, it would help to have distributed network services such as ones > that let you say "join the next available connect/pong game" This is easy to implement within the current sharing framework. It just requires each game to pa

Re: mesh portal discovery

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Morgan Collett wrote: > We'll add some API to PresenceService and sugar.presence, and put some > signal into Sugar similar to the buddy-left signal to indicate you were > disconnected, and ensure that the activity gets back into an unshared state. > >

Re: mesh portal discovery

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Dan Williams wrote: > It's not that hard to write an app that notices and handles IP address > changes. Not handling this in apps that are written for or ported to > the XO is just plain laziness. When porting or writing, you need to > handle the alw

Re: Fwd: Dailymotion for XO laptop

On Wed, 2008-01-09 at 22:19 +0100, Sebastien Adgnot wrote: > Hi all, > > Thanks a lot for your help and comments. > > However it seems quite difficult for us to encode our videos in > Theora+Vorbis right now. I'm gonna talk to different people in the > company to get their opinion and see what we

Re: Fwd: Dailymotion for XO laptop

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Walter Bender wrote: > http://wiki.laptop.org/go/Ask_OLPC_a_Question_about_Software#Include_Flash_Player.3F> > but I want to be sure to be optimized with all the parameters of the > laptop (video performance, cpu, power management, etc.). We encode our

Re: GLX available?

On Mon, 2008-01-07 at 13:11 +0100, NoiseEHC wrote: > Try to contact him, he ported TinyGL successfully: > http://lists.laptop.org/pipermail/devel/2007-June/005375.html > > > > > As a data point, Doom runs quite fast even at full resolution on a > > B4. Have not heard reports on getting Quake r

Re: jffs zlib tuning

On Mon, 2008-01-07 at 13:08 -0500, Bernardo Innocenti wrote: > Note that we compress 4KB blocks in jffs2. With small block sizes, > algorithms with better compression tend to loose most of their > advantage. > > We can't say much until we benchmark lzo vs gzip with small > files. Nonetheless, I

Re: Copy-on-write for develop

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Jameson "Chema" Quinn wrote: > Does anyone know if it is possible for Sugar to support something like > this? That is, if it there's any way - either file-system-native or > through some strap-on - to safely hand a link to a process so that > (either m

Re: Localization (translation) questions?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Kent Loobey wrote: > 1. I will have sound entries that will need to be translated. How do the > translators want this to be laid out for them. Translators are not voice-actors. There is no infrastructure in place for recording speech in many locati

Re: NAND FLASH wear-out

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Mitch Bradley wrote: > The part is rated for 100,000 *erase* cycles per block. There are 64 > independently-writable 2K pages per block. Writing doesn't count in the > wear calculation - just erasing. What does "rated" mean? Specifically, I imagin

TurtleArt Mandelbrot

I was intrigued by Turtle Art, and wanted to learn how to use it. I was also bored, stuck in an airport after my flight was delayed. Therefore, I decided to write a Mandelbrot Fractal generator in Turtle Art. You can see the result here: http://dev.laptop.org/~bemasc/mandelbrot/Screenshot.png

Re: Hippo Canvas

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Gerard J. Cerchio wrote: > Sorry to say that I am having a terrifically hard time trying to use the > hippo canvas. hippocanvas is sort of deprecated. Initially, hippocanvas was to be the basic building block for all Activities, but it proved too im

Re: Oprofile, swap

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ivan Krstić wrote: > On Dec 18, 2007, at 12:27 PM, Jameson Chema Quinn wrote: >> Has anyone looked at Psyco on the XO? > > > Psyco improves performance at the cost of memory. On a memory- > constrained machine, it's a tradeoff that can only be made

Re: Voice IM project proposal

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Benjamin M. Schwartz wrote: > 4. Longer description : Support voice conversation using voice IM > : between any two XO in a local mesh or > : globally, using the XO

Re: Voice IM project proposal

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 What an interesting cultural reminder. That .doc file contains only plain text: 1. Project name : Voice Instant Messaging 2. Existing website, if any : 3. One-line description : Add voice capability to the Chat activity 4. Longer des

Re: Displaying formatted text (HTML)

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Asheesh Laroia wrote: > Right now, we have the formatted text in HTML format. I don't really want > to embed Mozilla, but is there a lightweight GTK HTML widget that I can > access from Python that is standard on the XO? Not that I'm aware of. > I

Re: Acoustic distance measurement test results

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 [EMAIL PROTECTED] wrote: > How high off the ground were the laptops? At ground height, with ears > up, the node to node transmission distance is very small. That's why > school server antennas will be mounted high. The laptops were sitting directly

Acoustic distance measurement test results

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Joyride builds currently include my Acoustic Tape Measure activity, designed to turn any pair of laptops into a tool for measuring distance. Today, I decided to test the maximum range. I used two B4's running clean installs of joyride 289. I went t

Re: StopWatch activity

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hal Murray wrote: >> Obsessive accuracy. > What's your version of "Obsessive"? Seconds? Milliseconds? Microseconds? I have no desire to do better than 0.01s. Human reaction times are an order of magnitude slower than that anyway. What I meant is, I

Re: StopWatch activity

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Benj. Mako Hill wrote: > Is there a reason you haven't made the clock and the stopwatch different > functions for a single activity? Yes, but not especially good reasons. Practical: 1. Clock is non-interactive. It doesn't make sense to share it, or s

Re: StopWatch activity

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 James Cameron wrote: > On Wed, Nov 14, 2007 at 02:45:31AM -0500, Benjamin M. Schwartz wrote: >> 2.5. Download: http://dev.laptop.org/~bemasc/StopWatchActivity-1.xo > > Tested on build 625 on a B4, works okay, problems you probably

StopWatch activity

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 1. Project name : StopWatch 2. Existing website, if any : http://dev.laptop.org/~bemasc/screenshot.png 2.5. Download: http://dev.laptop.org/~bemasc/StopWatchActivity-1.xo 3. One-line description : The most ludicrously awesome stopwatch

Request Git repo for Clock

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 1. Project name : Clock 2. Existing website, if any : None 3. One-line description : It's a clock. 4. Longer description : It shows 24-hour digital time, 12-hour analog time, and auto-localized date. Digital time and analog time

ICC profile of the XO display

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I have produced an ICC profile of the XO display on a B4. That's right! This means that Uruguayan 8-year-olds can finally do colorimetrically calibrated prepress production, provided that they have all the other components of a color-managed workflow,

Re: Shutting down fds prior to execvpe in rainbow/inject.py: joyride 247 under Qemu

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Michael Stone wrote: >> I note that Clock doesn't work at all (Stays in "Starting..." forever), > > If you look at /home/olpc/.sugar/default/logs/shell.log you'll see that > Clock is crashing during startup trying to find 'clock.svg'. Heads up to Act

Re: Generating tones with computer sound card

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Arjun Sarwal wrote: > I need to do some testing (need sine waves of 50hz, 1khz, 10khz) and I > am unable to get hold of a function generator. I was thinking of using > my computer (PC) sound card to generate these tones. I am wondering if > anybody has

Re: CODE FREEZE COMING!

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I am one of the many volunteer Activity developers. I believe my Activity merits inclusion in the build. (For example, I feel it meets the "Criteria for Inclusion" outlined by Walter in a past community newsletter.) I am sure many other Activity de

Re: ip4-address buddy property - still needed?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Erik Blankinship wrote: > Record uses ip4-address, but we've just about completed Record Tubes > (and it is working great). Should Activity developers assume that stream tubes will be available in both Gabble and Salut by OLPC 1.0? - --Ben -BEGIN

Re: Requesting audio samples using gstreamer

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Arjun Sarwal wrote: > Is there a way to explicitly request samples from Alsa using gstreamer ? Not that I'm aware of. You could set up a gstreamer pipeline that writes raw audio into a named pipe (FIFO), and then read the data out of the FIFO in pyth

Re: Panorama activity

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Eben Eliason wrote: > That's a lot of shots. Can you do some tests to determine the minimal > required number that still produces decent stitches? I would be happy to do some tests. > Would 25% overlap > be sufficient? Probably. That would correspo

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