Re: XO-1.5 audio input DC mode

2010-11-24 Thread James Cameron
On Thu, Nov 25, 2010 at 02:54:33AM -0300, Gonzalo Odiard wrote: > The sound was recorded with the internal mic, at the start there are a > negative max > and a curve before you can get values to process > (http://dev.laptop.org/attachment/ticket/10122/Screenshot.png) Vague memory this is privacy r

Re: XO-1.5 audio input DC mode

2010-11-24 Thread Gonzalo Odiard
I see a problem recording sound in the Distance activity, but I don't know if it is related. You can see more information in OLPC #10122 http://dev.laptop.org/ticket/10122 The sound was recorded with the internal mic, at the start there are a negative max and a curve before you can get values to pr

Re: Firmware update -> os-builder

2010-11-24 Thread javed khan
That will be great, i was looking for something like this. On Thu, Nov 25, 2010 at 9:11 AM, Jerry Vonau wrote: > On Wed, 2010-11-24 at 22:49 +, Daniel Drake wrote: > > On 24 November 2010 22:40, Kevin Gordon wrote: > > > Is this recommendation against yum and rpm for all software, or just >

Re: Firmware update -> os-builder

2010-11-24 Thread Jerry Vonau
On Wed, 2010-11-24 at 22:49 +, Daniel Drake wrote: > On 24 November 2010 22:40, Kevin Gordon wrote: > > Is this recommendation against yum and rpm for all software, or just the > > oplc repo packages, the kernel and the firmware? I'm certainly happy doing > > just safe builds for the core. >

Re: Re: XO-1.5 audio input DC mode

2010-11-24 Thread forster
This sounds like the problem with TurtleArt The bias is present in voltage mode. The version for sensors on the xo1.5 is http://bugs.sugarlabs.org/attachment/ticket/2506/TurtleArt-104.xo The bias is not leakage and capacitance, 15k ohms at the socket halves the bias voltage at the socket. It is

Re: Firmware update

2010-11-24 Thread James Cameron
On Wed, Nov 24, 2010 at 06:27:30PM -0600, Mikus Grinbergs wrote: > It would be nice if such a "list of tweaks" existed someplace (perhaps > in the wiki). That would mean Wiki documentation for code in olpc-os-builder. That would be a nice challenge; especially keeping it synchronised. In the mea

Re: Firmware update

2010-11-24 Thread Mikus Grinbergs
> There are a few other cases to consider. One is with packages that are > tweaked without forking the packages. For example if you were to > upgrade gstreamer you'd lose our pulseaudio tweak that makes sound > work, and if you upgrade firefox you'd lose the tweak that makes it > use totem for vide

Re: Firmware update

2010-11-24 Thread Daniel Drake
On 24 November 2010 23:15, Jerry Vonau wrote: > Yes I know, I don't want this to included, it is meant to be an > alternative means to update firmware on a running XO, that is it. Ah, great, no worries then. Just wanted to make sure you had an explanation. >> And, in general OLPC advises against

Re: Firmware update

2010-11-24 Thread Jerry Vonau
On Wed, 2010-11-24 at 22:25 +, Daniel Drake wrote: > On 24 November 2010 08:26, Jerry Vonau wrote: > > I've played around with the bootfw rpm, altering the install path to > > reflect where /boot really is on the filesystem while booted up. This > > has the advantage of being able to use rpm/y

Re: Firmware update

2010-11-24 Thread Daniel Drake
On 24 November 2010 22:40, Kevin Gordon wrote: > Is this recommendation against yum and rpm for all software, or just the > oplc repo packages, the kernel and the firmware?  I'm certainly happy doing > just safe builds for the core. To avoid all corner cases it the recommendation really needs to

[Server-devel] call home setup via 3G modems

2010-11-24 Thread Sameer Verma
Hello! I am looking for others who may have done something similar. We'd like to set up the XS (a remote location) in a way where it can occasionally use a 3G modem (USB) to get online and set up a tunnel to a public IP. I am assuming the 3G modem ISP will provide a private IP, thereby creating al

Re: Firmware update

2010-11-24 Thread Kevin Gordon
Is this recommendation against yum and rpm for all software, or just the oplc repo packages, the kernel and the firmware? I'm certainly happy doing just safe builds for the core. However, as part of our 'refresh' stick when we wipe and install a new signed build, we generally also include the nec

Re: [Server-devel] Assistance with Setting up the School Server

2010-11-24 Thread Sameer Verma
On Wed, Nov 24, 2010 at 1:54 PM, HALL,Brian C wrote: > Hey guys, > > > > > > Iam new to setting up the school server. So far I have downloaded and > installed the ISO unto a dell optiplex  240.  It picks up the eth0 but iam > not sure what next to do in order for it  to work. What else should I do

Re: Firmware update

2010-11-24 Thread Daniel Drake
On 24 November 2010 08:26, Jerry Vonau wrote: > I've played around with the bootfw rpm, altering the install path to > reflect where /boot really is on the filesystem while booted up. This > has the advantage of being able to use rpm/yum to stage the upgrade of > the firmware. Providing you have t

Re: XO-1.5 audio input DC mode

2010-11-24 Thread C. Scott Ananian
On Wed, Nov 24, 2010 at 6:52 AM, Sascha Silbe wrote: > 2. The voltage I see with bias off is probably generated internally by >   the codec chip. [...] >   Unless someone finds a magic way to disable this from the digital >   side of the chip (which I doubt), we'll have to cope with it. This >   m

Re: SD card unpartitioned space -- used for swap?

2010-11-24 Thread Richard A. Smith
On 11/24/2010 09:53 AM, Richard A. Smith wrote: > or so from the last write. I recommend you do hard power offs little as > possible. Suspend/resume also should be disabled. My statement is not 100% accurate. The external SD card can remain powered in suspend so you don't have to disable sus/re

Re: [Server-devel] school server Moodle enrollment

2010-11-24 Thread Martin Langhoff
On Wed, Nov 24, 2010 at 7:46 AM, Tony Anderson wrote: > I have entered their laptop serial > numbers in /etc/coursecreator but they are still assigned student roles > somewhere in the enrollment logic. Try /etc/moodle/coursecreators -- from the relevant code... http://dev.laptop.org/git/users/ma

Re: SD card unpartitioned space -- used for swap?

2010-11-24 Thread Richard A. Smith
On 11/22/2010 07:20 PM, James Cameron wrote: >> Also, I'm not familiar with "evil keepout time". But note that on the >> new XO-1 F14 build, the "shutdown" time-lapse is only a few seconds. >> If actually 30s are needed to keep the SD circuitry happy, perhaps a >> delay (and a Release Notes expla

Re: XO-1.5 audio input DC mode

2010-11-24 Thread Richard A. Smith
On 11/24/2010 06:52 AM, Sascha Silbe wrote: > 2. The voltage I see with bias off is probably generated internally by > the codec chip. I don't think the chip designers envisioned it to be > used without a decoupling capacitor. I've been told the (non-public) > data sheet is rather spar

Re: [Server-devel] school server Moodle enrollment

2010-11-24 Thread Andra DuPont
Tony, I just got back from Kenya where I installed a server at Asilong Primary school in West Pokot. This may be the first server in Kenya. To answer your question... if you have one laptop (even non-XO) that is assigned coursecreator role, then go to Moodle on that laptop, and you should have

Re: Firmware update

2010-11-24 Thread Kevin Gordon
Thanks for that. I will place into the bag of tricks! Cheers KG On Wed, Nov 24, 2010 at 3:26 AM, Jerry Vonau wrote: > On Tue, 2010-11-23 at 16:30 -0500, Kevin Gordon wrote: > > Ooops I think I sent this to the wrong thread before. Sorry for any > > inconvenience. > > > > I seem to remember t

Re: XO-1.5 audio input DC mode

2010-11-24 Thread Sascha Silbe
Excerpts from Sascha Silbe's message of Wed Nov 17 19:38:20 +0100 2010: > I'm trying to use the XO-1.5 as an oscilloscope, using xoscope (*) [1]. [...] Thanks to everybody who replied and helped me figure this out. I still haven't succeeded using the XO-1.5 as an oscilloscope, but made some progr

Re: Firmware update

2010-11-24 Thread Jerry Vonau
On Tue, 2010-11-23 at 16:30 -0500, Kevin Gordon wrote: > Ooops I think I sent this to the wrong thread before. Sorry for any > inconvenience. > > I seem to remember that the signed builds would automatically update > the > firmware on machines when using the game-key-release update method, > assu