XOs with no sound
Hi The sound of 5 of our 100 XOs doesn't work anymore. The hardware test is okay (sound works), but all the sugar activities I tested (Scratch, TamTamMini, Speak, Gcompris) don't have sound. Rebooting the XO doesn't help. I checked the sugar log files and /var/log/messages, but couldn't find any sound related warnings or errors. We are running build 767, but I have seen the same problem with build 708 (but not that often). Reinstalling the OS solves the problem, but I would prefer an easier solution. I checked if such a bug is reported, but couldn't find a ticket (the sound resume problem of ticket 6201 is normally solved with a reboot). Since I don't know how to reproduce the problem, I would like to localize it before opening a ticket. What can I do to localize the problem (e.g. low level sound tests)? Is it possible that running out of battery while playing sound can have such an effect or could it be related to the resume problem of ticket 6201 (we had that problem very often with Scratch when the experimental power management was switched on )? Regards, Philipp Pepyride School Cambodia ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: XOs with no sound
I have seen this problem when the alsamixer settings have become messed up. Seems like there are one or 2 processes that occasionally write to the alsamixer config file. You can alter the settings by running the graphical program /usr/bin/ alsamixer from the terminal. There is also a command line program / usr/sbin/alsactl but being late at night I can't remember the syntax off hand. On Dec 30, 2008, at 12:12 AM, Philipp Kocher wrote: Hi The sound of 5 of our 100 XOs doesn't work anymore. The hardware test is okay (sound works), but all the sugar activities I tested (Scratch, TamTamMini, Speak, Gcompris) don't have sound. Rebooting the XO doesn't help. I checked the sugar log files and /var/log/messages, but couldn't find any sound related warnings or errors. We are running build 767, but I have seen the same problem with build 708 (but not that often). Reinstalling the OS solves the problem, but I would prefer an easier solution. I checked if such a bug is reported, but couldn't find a ticket (the sound resume problem of ticket 6201 is normally solved with a reboot). Since I don't know how to reproduce the problem, I would like to localize it before opening a ticket. What can I do to localize the problem (e.g. low level sound tests)? Is it possible that running out of battery while playing sound can have such an effect or could it be related to the resume problem of ticket 6201 (we had that problem very often with Scratch when the experimental power management was switched on )? Regards, Philipp Pepyride School Cambodia ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: XOs with no sound
How to fix no sound caused by operating system. 1. obtain the root prompt, e.g. by starting the Terminal activity and clicking on become root button, 2. if you wish to find out in which way the settings have been corrupted, copy the file /etc/asound.state before proceeding, cp /etc/asound.state /home/olpc/asound.state.orig 3. obtain a copy of /etc/asound.state from a working XO, or from a reinstalled XO, and place it in /etc/asound.state on the failed XO, 4. restore the settings from the file, alsactl restore 5. test that sound now works. Note: there is a possibility that the build 767 ALSA saved state file is in some other place. I've not checked. I found out where the file was on Joyride 2612 using a command: strace -e open alsactl restore -- James Cameronmailto:qu...@us.netrek.org http://quozl.netrek.org/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: G1G1 updates, Lennon video and other vids
At Sat, 27 Dec 2008 14:42:51 -0500, Samuel Klein wrote: Hi, The Lennon video that's been murmured about for weeks has been released. I'm curious to see reactions from the list. I have to agree wtih David on making a dead cerebrity say something he didn't say. And, while the message of Imagine and Lennon have some overlap with the mission of OLPC, but it is not as big as one might think. Looking at Yoko Ono has been saying and doing, she/they are more into new-agey, peseudo-sciencey, and not quite a good message in conjunction with education. I like some of the songs, and I don't oppose to progressive art and their activities, but I feel it awkward if people treat Lennon as a big symbol for practical world changer and not to mention for education.) -- Yoshiki ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: G1G1 updates, Lennon video and other vids
Yoshiki Ohshima yosh...@vpri.org writes: I like some of the songs, and I don't oppose to progressive art and their activities, but I feel it awkward if people treat Lennon as a big symbol for practical world changer and not to mention for education.) Yeah. Too bad OLPC didn't make an animated movie with Socrates using a XO! -- Bastien ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Grassroots-l] G1G1 updates, Lennon video and other vids
On Sat, 2008-12-27 at 22:58 -0500, Samuel Klein wrote: Aha! Yes, I've made that a response to the recent spot. As for the comments... this is a chance to work on your skill at teaching through one-liners. There are a few other great videos up that are worth sharing where appropriate; Joels video of an 8 and 10-year old repairing a keyboard comes to mind. For those who haven't seen it: http://www.youtube.com/watch?v=Pus_fA1Tv9w Project4Awesome has some tips for using YouTube to spread an idea [they run an annual 'take over YT for charity' day every Dec. 17] - http://www.projectforawesome.com/?page_id=16 SJ On Sat, Dec 27, 2008 at 9:53 PM, S Page i...@skierpage.com wrote: the common reaction How are kids going to use laptops in the middle of the jungle? give them food! I didn't know about OLPC Mission: Part 2 The XO Laptop , http://www.youtube.com/watch?v=qMeX2D4AOjM That video is outstanding! I don't know how to suggest it as a stock response to the doubters. -- =S ___ Grassroots mailing list grassro...@lists.laptop.org http://lists.laptop.org/listinfo/grassroots -- http://martenvijn.nl Marten Vijn http://www.deupsidevandown.nl *** http://laptop.org/xo Give One Get One http://har2009.org August 13-16th http://opencommunitycamp.org 26th Jul 2nd August ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
re: anonymous gray activity circles
Hi Chris, Unless someone else has seen this, I think we need more detail on how to reproduce it. Can you write down the steps it takes to get a gray activity circle? Include the version of XO software you are running: http://wiki.laptop.org/go/What_release_am_I_running%3F It may be that you are double clicking to start an activity. That can cause a second activity instance to try and start then fail and leave an icon in the frame. That's the only thing that comes to mind without more detail. Thanks, Greg S * From: jns-cmarsh...@comcast.net Subject: anonymous gray activity circles To: devel@lists.laptop.org Is there a way to prevent the anonymous gray activity circles in the frame? Some X apps seem to accumulate circles with no way i have been able to determine to remove dead ones. I tried to google the list but was not able to generate useful links. --Chris ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: anonymous gray activity circles
On 30.12.2008, at 15:19, Greg Smith wrote: Hi Chris, Unless someone else has seen this Anyone who ever tried to run a non-sugarized application has seen this. - Bert - ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: XOs with no sound
Hi James et al, That's great debugging and repair info. I especially like the use of the stack trace command! That's a great trick for hunting down which process is calling what files. Do we know how this gets in a failed state to begin with? I read the headlines of them most recent 100 bugs with sound in them and I didn't see anything that would cause this. I only saw 3 old, closed bugs with alsactl in them. If we have an ideas on why or how this happens, let's file a bug and I can track it for 9.1. Thanks, Greg S * Date: Tue, 30 Dec 2008 20:46:39 +1100 From: qu...@laptop.org Subject: Re: XOs with no sound To: Philipp Kocher philipp.koc...@gmx.net Cc: devel@lists.laptop.org Message-ID: 20081230094639.ga12...@us.netrek.org Content-Type: text/plain; charset=us-ascii How to fix no sound caused by operating system. 1. obtain the root prompt, e.g. by starting the Terminal activity and clicking on become root button, 2. if you wish to find out in which way the settings have been corrupted, copy the file /etc/asound.state before proceeding, cp /etc/asound.state /home/olpc/asound.state.orig 3. obtain a copy of /etc/asound.state from a working XO, or from a reinstalled XO, and place it in /etc/asound.state on the failed XO, 4. restore the settings from the file, alsactl restore 5. test that sound now works. Note: there is a possibility that the build 767 ALSA saved state file is in some other place. I've not checked. I found out where the file was on Joyride 2612 using a command: strace -e open alsactl restore -- James Cameron mailto:qu...@us.netrek.org http://quozl.netrek.org/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Grassroots-l] G1G1 updates, Lennon video and other vids
On Tue, 30 Dec 2008, Kevin Cole wrote: On Mon, Dec 29, 2008 at 16:21, Andr?s Ambrois andresambr...@gmail.com wrote: I also wouldn't feel comfortable articulating dead people imagery to make it seem like they said something they didn't. No matter how obvious it may seem that it is an actor, no matter how much his wife agrees with the statement. I feel Sagan's voice in this video would have made a true a deep message: http://www.youtube.com/watch?v=hLkC7ralR30 I would suggest Sagan's Cosmos and Pale Blue Dot passages for future ads of this nature. There are countless great poets out there, no need to fake them :) At first, I didn't want to rain on anyone's parade, but I see others feel as I do. Putting words in someone's mouth without a strong hint of parody isn't right. Parody isn't nessasarily a requirement. The scenes in Forrest Gump where they have him meeting with the President isn't parody, but it's very clearly fiction, and a very appropriate use of this sort of technology. David Lang ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: anonymous gray activity circles
Some X apps seem to accumulate circles with no way I have been able to determine to remove dead ones. I happen to have sugarized Sonata. [There appears to be some uncertainty in the launching of the mpd daemon that performs the actual playback.] I do not mind the Sonata gray circle while the Activity is running. On Joyride-2610, if I exit from Sonata by hovering on its gray circle in Frame, and clicking 'Stop' in the palette Frame shows me, the Activity seems to quit without leaving the gray circle behind. But [probably depending on the state of the mpd daemon] if I exit from Sonata by clicking on the octagonal 'Stop sign' in the top bar, sometimes an anonymous gray activity circle gets left in Frame. It would be nice if there were a way for an user to remove dead circles from Frame. mikus ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Fedora Desktop on XO
Hi Peter et al, I'm still looking for help resolving the dependencies Chris found when he tried to install Gnome. The issue and thread are documented in the specifications section here: http://wiki.laptop.org/go/Feature_roadmap/Run_Fedora_applications_on_XO What do we do next when we get a list of dependency errors? Paul, I believe that you got XFCE running. Can you add the description of what you did to make that happen to this page? http://wiki.laptop.org/go/Feature_roadmap/Run_Fedora_applications_on_XO I may have a little time tomorrow to try it out if its not too complicated. Thanks, Greg S ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Auto-suspend and Presence Service
Hi John, Thanks for the comments and early catch on this. Robert and wireless/collaboration experts, Can you comment on this? There are a couple of relevant requirements and known issues documented here: http://wiki.laptop.org/go/Feature_roadmap/Improved_battery_life It sounds like we need a solid design proposal which defines exactly how/when the wireless uses power and how/when the XO wakes up. Any links or suggestions welcome. Thanks, Greg S John Gilmore wrote: In 9.1.0, auto-suspend is going to be on by default, which we estimate will roughly triple our battery life. We're working on fixing all the bugs that would prevent that. One of them is not strictly a bug -- it's a performance issue. The Presence Service sends packets frequently, for tracking the presence of your friends and any shared activities. Many of these are multicast packets (some are probably unicast jabber packets, too). In 8.2.0, with auto-suspend enabled, you have to run a specific command to enable suspended laptops to awaken when multicast packets arrive; see bug #6818 and run ethtool -s msh0 wol um. This will become the default in 9.1.0. The problem I can foresee is that the Presence Service will send packets so frequently that everyone's laptop will always be waking up, negating the power-stretching abilities of auto-suspend. This seems to occur with only a few laptops around (in my tests at home); yet we need to make it work with dozens of laptops within range, for our deployments. I hope that the Collabora team is running in this mode now, and working out ways to reduce packet traffic to let sleeping laptops lie. The cellular phone industry went through several cycles of design improvements like this, enabling today's remarkable phone battery life, without impact on our ability to rapidly communicate whenever desired. OLPC hasn't yet done the first round of such improvements, and I hope it WILL do so before 9.1.0. We could all use those long battery lives -- especially the kids in the rural deployments. We don't want to tell them to turn off collaboration if they want their laptop to last all day; it's one of our key features. John ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
New joyride build 2613
http://xs-dev.laptop.org/~cscott/olpc/streams/joyride/build2613 Changes in build 2613 from build: 2612 Size delta: 0.00M -cronie 1.2-4.fc10 +cronie 1.2-7.fc10 -perl 4:5.10.0-51.fc10 +perl 4:5.10.0-52.fc10 -perl-Module-Pluggable 1:3.60-51.fc10 +perl-Module-Pluggable 1:3.60-52.fc10 -perl-Pod-Escapes 1:1.04-51.fc10 +perl-Pod-Escapes 1:1.04-52.fc10 -perl-Pod-Simple 1:3.07-51.fc10 +perl-Pod-Simple 1:3.07-52.fc10 -perl-libs 4:5.10.0-51.fc10 +perl-libs 4:5.10.0-52.fc10 -perl-version 3:0.74-51.fc10 +perl-version 3:0.74-52.fc10 -portaudio 19-5.fc9 +portaudio 19-6.fc10 -python-setuptools 0.6c8-1.fc10 +python-setuptools 0.6c9-1.fc10 -sugar 0.83.4-2.olpc4 +sugar 0.83.3-1.olpc4 -sugar-toolkit 0.83.3-2.olpc4 +sugar-toolkit 0.83.2-3.olpc4 --- Changes for portaudio 19-6.fc10 from 19-5.fc9 --- + Add a patch by Kevin Kofler to make non mmap alsa (and thus pulseaudio) work -- This mail was automatically generated See http://dev.laptop.org/~rwh/announcer/joyride-pkgs.html for aggregate logs See http://dev.laptop.org/~rwh/announcer/joyride_vs_update1.html for a comparison ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: New joyride build 2613
-sugar 0.83.4-2.olpc4 +sugar 0.83.3-1.olpc4 What was wrong with sugar 0.83.4 ? Why not start putting 0.84 in Joyride ? mikus ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: New joyride build 2613
On Tue, 30 Dec 2008, Build Announcer v2 wrote: Size delta: 0.00M -cronie 1.2-4.fc10 +cronie 1.2-7.fc10 -perl 4:5.10.0-51.fc10 +perl 4:5.10.0-52.fc10 -perl-Module-Pluggable 1:3.60-51.fc10 +perl-Module-Pluggable 1:3.60-52.fc10 -perl-Pod-Escapes 1:1.04-51.fc10 +perl-Pod-Escapes 1:1.04-52.fc10 -perl-Pod-Simple 1:3.07-51.fc10 +perl-Pod-Simple 1:3.07-52.fc10 -perl-libs 4:5.10.0-51.fc10 +perl-libs 4:5.10.0-52.fc10 -perl-version 3:0.74-51.fc10 +perl-version 3:0.74-52.fc10 I thought you were trying to not have perl in the system? David Lang ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: New joyride build 2613
On Tue, Dec 30, 2008 at 3:51 PM, da...@lang.hm wrote: I thought you were trying to not have perl in the system? My understanding is that Joyride builds are kicked off automatically when there is something new to build. A new version of Perl was posted to the Fedora repositories, so Joyride picked it up. This doesn't mean that perl will stick around. Please correct me if I misstated something. On Tue, Dec 30, 2008 at 2:42 PM, Mikus Grinbergs mi...@bga.com wrote: Why not start putting 0.84 in Joyride ? From http://sugarlabs.org/go/DevelopmentTeam/Release/Roadmap: Sucrose 0.83.x is an unstable development series intended for testing and development purposes. Sucrose uses odd minor version numbers to indicate development status, so this unstable 0.83.x series will eventually become the 0.84 stable release. Thanks, Nate ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: New joyride build 2613
On Wed, Dec 31, 2008 at 2:21 AM, da...@lang.hm wrote: On Tue, 30 Dec 2008, Build Announcer v2 wrote: Size delta: 0.00M -cronie 1.2-4.fc10 +cronie 1.2-7.fc10 -perl 4:5.10.0-51.fc10 +perl 4:5.10.0-52.fc10 -perl-Module-Pluggable 1:3.60-51.fc10 +perl-Module-Pluggable 1:3.60-52.fc10 -perl-Pod-Escapes 1:1.04-51.fc10 +perl-Pod-Escapes 1:1.04-52.fc10 -perl-Pod-Simple 1:3.07-51.fc10 +perl-Pod-Simple 1:3.07-52.fc10 -perl-libs 4:5.10.0-51.fc10 +perl-libs 4:5.10.0-52.fc10 -perl-version 3:0.74-51.fc10 +perl-version 3:0.74-52.fc10 I thought you were trying to not have perl in the system? Perl has been around for sometime in the joyrides now. I think it is being pulled in via abiword and libgoffice and friends. -sdg- -- Sayamindu Dasgupta [http://sayamindu.randomink.org/ramblings] ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: XOs with no sound
On Tue, Dec 30, 2008 at 09:32:38AM -0500, Greg Smith wrote: That's great debugging and repair info. I especially like the use of the stack trace command! That's a great trick for hunting down which process is calling what files. Actually, it's a system call tracing command. It can be used to show what a process is asking the kernel to do. Yes, it is an essential technical support tool. It can also be used on processes that are already running. Do we know how this gets in a failed state to begin with? No, not yet. I've two theories as to cause. Seeing the content of a failed /etc/asound.state file beside a working file from the same build would help confirm the theories. I hope these can be made available. My theories are: 1. one of the mixer controls was changed by an activity or other program, and not changed back, (this is the most likely), 2. some hitherto undetected defect in alsactl or the way it is being called by our OS build. The mixer is the hardware component that controls the many output volumes, the microphone sensitivity, and the use of the microphone input jack as a voltage sensor. The set of controls is referred to as the mixer settings. There are more controls in the set than are exposed to the Sugar or activity user. All the controls can be changed on the shell command line. The Sugar volume keys manipulate the main output volume. The Frame shows the current main output volume. The Measure activity manipulates the microphone and voltage sensor. The mixer settings are preserved over shutdown and reboot by the operating system. /etc/init.d/halt is where the mixer settings are saved. /etc/init.d/olpc-configure is where the mixer settings are restored. (I wonder why we want to save and restore mixer settings anyway? Would it not be better to set them to default on each boot?) I have excluded empty mixer settings file as a cause. If the file is empty, alsactl uses default settings, and these are not significantly different to the working settings. Tested on Joyride 2612. Revision to my previous instructions ... merely moving /etc/asound.state to another name and rebooting may solve the immediate problem though not the cause. -- James Cameronmailto:qu...@us.netrek.org http://quozl.netrek.org/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Installing Flash on the OLPC
Dear genesee, Carlos Nazareno, Everybody, gently Many more people are going to read http://wiki.laptop.org/go/Adobe_Flash page than follow this mailing list. Your effect on XO users by only answering problems here is limited, you're just making the smart smarter still. Just in time for New Year's resolutions: edit the wiki page first. Anyway, why does this wiki page tell you to enter sudo su - commands when every other page I've seen says su - (or su -l) commands ? `sudo su -` seems redundant. Cheers, -- =S Page ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: XOs with no sound
What is the ticket number for that problem?
It seems like always the same 7 values are wrong.
There is a shorter solution:
1. Copy /etc/alsa/asound.state of a healthy XO to USB flash drive
2. Type alsactl -f /media/{flash_dirve_name}/asound.state restore on
the XO with no sound
Thanks
qu...@laptop.org wrote:
How to fix no sound caused by operating system.
1. obtain the root prompt, e.g. by starting the Terminal activity and
clicking on become root button,
2. if you wish to find out in which way the settings have been
corrupted, copy the file /etc/asound.state before proceeding,
cp /etc/asound.state /home/olpc/asound.state.orig
3. obtain a copy of /etc/asound.state from a working XO, or from a
reinstalled XO, and place it in /etc/asound.state on the failed XO,
4. restore the settings from the file,
alsactl restore
5. test that sound now works.
Note: there is a possibility that the build 767 ALSA saved state file is
in some other place. I've not checked. I found out where the file was
on Joyride 2612 using a command:
strace -e open alsactl restore
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Re: anonymous gray activity circles
Greg Smith wrote: Hi Chris, Unless someone else has seen this, I think we need more detail on how to reproduce it. os767 and Firefox-6 activity start firefox click on a file link to download exit firefox after left a gray circle (Actually, it almost always leaves behind one or more circles but I have not done exhaustive testing to determine how many or under what conditions. It would be easier to start from an understanding of how the circle gets there to begin with (what is being used to trigger the circle's appearance)... --Chris Can you write down the steps it takes to get a gray activity circle? Include the version of XO software you are running: http://wiki.laptop.org/go/What_release_am_I_running%3F It may be that you are double clicking to start an activity. That can cause a second activity instance to try and start then fail and leave an icon in the frame. That's the only thing that comes to mind without more detail. Thanks, Greg S * From: jns-cmarsh...@comcast.net Subject: anonymous gray activity circles To: devel@lists.laptop.org Is there a way to prevent the anonymous gray activity circles in the frame? Some X apps seem to accumulate circles with no way i have been able to determine to remove dead ones. I tried to google the list but was not able to generate useful links. --Chris ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: New joyride build 2613
Size delta: 0.00M -cronie 1.2-4.fc10 +cronie 1.2-7.fc10 -perl 4:5.10.0-51.fc10 +perl 4:5.10.0-52.fc10 -perl-Module-Pluggable 1:3.60-51.fc10 +perl-Module-Pluggable 1:3.60-52.fc10 -perl-Pod-Escapes 1:1.04-51.fc10 +perl-Pod-Escapes 1:1.04-52.fc10 -perl-Pod-Simple 1:3.07-51.fc10 +perl-Pod-Simple 1:3.07-52.fc10 -perl-libs 4:5.10.0-51.fc10 +perl-libs 4:5.10.0-52.fc10 -perl-version 3:0.74-51.fc10 +perl-version 3:0.74-52.fc10 I thought you were trying to not have perl in the system? Perl has been around for sometime in the joyrides now. I think it is being pulled in via abiword and libgoffice and friends. Abiword no longer depends on perl. Its primarily cups and the libgnome deps that pull it in. libgnome is pulled in by xulrunner. Peter ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: performance work
Neil Graham wrote: On Mon, 2008-12-22 at 15:36 -0700, Jordan Crouse wrote: You might want to re-acquire the numbers with wireless turned off and the system in a very quiet state. If you want to be extra careful, you can run the benchmarks in an empty X server (no sugar) and save the results to a ramfs backed directory to avoid NAND. The XO Numbers were recorded from a fairly inactive state. Wireless was active but there shouldn't have been any traffic. I did launch X with just an xterm, so sugar shouldn't be in play at all. I didn't think of the speed of nand writes however. 2) The accel path requires reading from video memory (which is very slow) I'm curious as to why reads from video memory are so slow, On standard video cards it's slow because there is quite a division between the CPU and the video memory, but on the geode isn't the video memory shared in the same SDRAM as Main memory. It is, in that they share the same physical RAM chips, but they are controlled by different entities - one is managed by the system memory controller and the other is handled by the GPU. At start up time, the memory is carved up by the firmware, and after the top of system RAM is established, video and system memory behave for all intents and purposes like separate components. Put simply, there is no way to directly address video memory from the system memory. Access to the video memory has to happen via PCI cycles, and for obvious reasons the active video region has the cache disabled, accounting for relatively slow readback. That said, the read from memory performance is still worse then you might expect - I never really got a good answer from the silicon guys as to why. If Tom Sylla is still reading this list, he might know more. There's a separate 2 meg for DCON memory, but I was under the impression that was just to remember the last frame. Do I have that all wrong? No - thats right, there is a completely separate bank of chips just for the DCON. Jordan ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: XOs with no sound
On Wed, Dec 31, 2008 at 09:22:17AM +0700, Philipp Kocher wrote: It seems like always the same 7 values are wrong. Which 7 values? 1. Copy /etc/alsa/asound.state of a healthy XO to USB flash drive Okay, so it is in /etc/alsa on those builds? Are you sure that file is in use? On the build I'm using, there is a file in /etc/alsa/asound.state that is not updated, as well as one in /etc/asound.state . (I would have thought /var would have been more appropriate). Your process has two steps and requires a working XO. I think it is even simpler to alsactl -f /dev/null restore -- James Cameronmailto:qu...@us.netrek.org http://quozl.netrek.org/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Server-devel] XS 0.5.1-dev03 with ejabberd goodness, kernel bling, Access Point workingness... looking for xmas testers
David, Thank you for the information. Can you attempt to perform a clean install again with edits in line below. David Leeming wrote: Hi Reuben - Installed 0.5 Nov 19th download on Toshiba notebook computer with black box prototype AA (USB) - Fresh install (overwriting not upgrading the previously fully working 0.4 installation - Set location Guadalcanal, use local time (I did not change this in my tests; I doubt this has any effect but want to note I left this at the default setting) - No optional application selected - Install.. restart - /etc/sysconfig/olpc-scripts/domain_config oceania.org After running domain_config Then edit the file /etc/sysconfig/network and set hostname to schoolserver.oceania.org (nano /etc/sysconfig/network) Then restart (shutdown -r now) - chkconfig --level 345 ejabberd on - service ejabberd start Wait a few minutes for ejabberd to completely startup. You can check it's status by running: service ejabberd status - ejabberdctl register admin schoolserver.oceania.org admin With a fresh install of 0.5.1 dev 3 you don't need the following from here -- - restart - yum --enablerepo=olpcxs-testing update - restart to here -- - One one of 4 XOs, log onto ejabberd web admin and set up shared roster Online - restart - start all four XOs and register, then restart On the XOs are registering from a fresh OS install, 8.2? If the XOs have been previously registered; you will need to clean out their registration by removing the server fields in /home/olpc/.sugar/default/config. After removing these fields; restart the XOs Then connect the XOs to the appropriate SSID or AA. Then register the XO. Then restart the XO. I hope this helps. Please let us know. At this stage I cannot see any other XO, and still had to do the work around of removing all four users from the ejabberd webadmin and restarting everything before I could see them in the neighbourhood views. (as advised by Martin): (Martin wrote...) To avoid re-installing the XS to re-test the just registered scenario you can - go with a webbrowser to the ejabberd admin panel, go into the 'schoolserver' vhost listed there and delete all the users registered - restart ejabberd - restart the laptops This happens each time a laptop is restarted. However, once all going, it is fine: - All four show up in the eJabberd control panel as users - All have the same correct results for olpc-netstatus - I tried sharing Memorize - all four OK - Video chat is OK between any two - Server access and Internet browsing all OK (updated them each online) Log attached David Leeming Technical Advisor, People First Network, Honiara, Solomon Islands Alternative email address: leemingda...@yahoo.com.au From: Reuben Caron [mailto:caron.reu...@gmail.com] On Behalf Of Reuben K. Caron Sent: Tuesday, 30 December 2008 12:15 p.m. To: David Leeming Cc: XS Devel; Martin Langhoff Subject: Re: [Server-devel] XS 0.5.1-dev03 with ejabberd goodness, kernel bling, Access Point workingness... looking for xmas testers Hmm.. Are you upgrading or doing this from fresh install? If upgrade from what previous version? If from fresh install can you give more detail to the exact steps you are performing? (pardon me if you provided this information earlier; I quickly reviewed the archive and could not find anything) Reuben Martin Langhoff wrote: On Mon, Dec 29, 2008 at 10:04 PM, David Leeming mailto:leem...@pipolfastaem.gov.sb leem...@pipolfastaem.gov.sb wrote: It works but you have to run through the procedure below each time you start the XOs up with the server. Hmmm, well, that's definitely not normal procedure! - I have to log onto ejabberd web admin with all XOs turned off and delete all users (time consuming for a class of 40) and then start them up. Then it will work fine and the neighbourhood screens populate, until you want to start again. Next time you start everything up, you will not see the other XOs, until the procedure is repeated. I suspect there's something else happening there... on the server there should be a log for ejabberd, /var/log/ejabberd.log I think. Can you post it to the list or to me? That should give us something to chew on... cheers, m -- Reuben K. Caron Country Support Engineer One Laptop per Child Mobile: +1-617-230-3893 reu...@laptop.org Deployments Support http://wiki.laptop.org/go/Deployments_Support ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
