Re: XO-1.5's sudden death - oven resurrected!
On Tue, Oct 16, 2012 at 1:25 AM, Yioryos Asprobounitis wrote: > > Sure! > If you have no intention to provide the *names* of the "chemicals involved"... No nutritional labelling requirements for electronic devices, however as described in the EPEAT certification, every plastic part is labelled with respect to recycling classification. http://wiki.laptop.org/images/c/cf/Epeat.ps Furthermore, I would imagine that the XO is still the only laptop to obtain EPEAT Gold certification. http://www.businesswire.com/news/home/20071022005302/en/Laptop-Child-Creates-Worlds-Greenest-Laptop-Computer > Seriously though, looking at the RoHS it would appear the known toxic > chemicals are bellow 0.1% (1000ppm) on the original material. Considering > volatility and standards, I would say pretty safe! > Standard floor dast wipes in a city home or outdoors soil for example, give > ~200ppm for lead, and in the wilderness soil lead is still 50ppm. > Cadmium is also pretty safe given that its limit in *food colors* is 15ppm. > This would be true for the rest of the chemicals in the list. But I'm > interested on what is not in the list (Not its level necessarily). > > Disclosure: I'm a chemist by training :-) Well, in that case, by all means feel free to put you XO into your spare kitchen blender and solvent extract the scrap to run it through a mass spectrometer. Just don't try to boot the gooey mess left behind. :-) cjl ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [OLPC-AU] Testing Summary - Auckland 13 October 2012
On Tue, Oct 16, 2012 at 1:10 AM, Deepak Muddha wrote: > Hi all > > All the bugs, enhancements were recorded in the system. It is good to record the bugs, even better to also record the diagnoses and fixes that followed in the thread, see references inter alia. > On 13 October 2012 13:22, Tabitha Roder wrote: >> Moon failed to start, but works if you change the language back to >> English, log file attached for failed to start case > > > https://sugardextrose.org/issues/2428 Problem identified and fixed, new activity release needed. http://lists.laptop.org/pipermail/devel/2012-October/036142.html >> Tam Tam Mini was mostly translated but the category names (percussion, >> animal etc for the instruments) were not > > > https://sugardextrose.org/issues/2461 L10n complete, new Activity release needed http://lists.laptop.org/pipermail/devel/2012-October/036115.html >> Clock does not speak the time but otherwise works. Changing to English >> fixes the talking clock. > > > https://sugardextrose.org/issues/2462 http://lists.laptop.org/pipermail/devel/2012-October/036143.html >> Note that the Days of the week were not >> translated, but everything else was. Log attached. > > > https://sugardextrose.org/issues/2463 >> >> >> Screencast encoding was very slow. >> No translation. Saves to journal. > > > https://sugardextrose.org/issues/2469 Is ScreenCast the same as ClassRoomBoadcast? If so, note that ClassRoomBroacast is fully translated, must need a new release. http://translate.sugarlabs.org/mi/honey/classroombroadcast.po?view_mode=translate >> >> Speak has an english accent and doesn't understand the macrons. The >> robot greeting "I'm a robot alice..." has been translated but the >> robot converses in english otherwise. > > > https://sugardextrose.org/issues/2464 Sorry this reply only went t oTabitha, I've since forwarded to list http://lists.laptop.org/pipermail/devel/2012-October/036189.html cjl ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: XO-1.5's sudden death - oven resurrected!
--- On Tue, 10/16/12, kgordon...@gmail.com wrote: > From: kgordon...@gmail.com > Subject: Re: XO-1.5's sudden death - oven resurrected! > To: "John Watlington" , devel-boun...@lists.laptop.org, > "Chris Leonard" > Cc: "OLPC Devel" , "Yioryos Asprobounitis" > > Date: Tuesday, October 16, 2012, 12:59 AM > I've given multiple machines to anna > to 'bake'. Alas, it is my feedback that In general, > they've ressurrected but only for a short period of > time. I am unaware of a long term solution for the > ramp machines. Do you know if Anna baked the board with Wad's specs or just at 385F? We'll see how far this one will go (or hopefully not :-) ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Testing Summary - Auckland 13 October 2012
On Sat, Oct 13, 2012 at 3:52 AM, Tabitha Roder wrote: > Auckland Testing Summary 13 October 2012 > Who: Alana, Fabiana, John, Oliver, Tabitha and Tom > Clock does not speak the time but otherwise works. Changing to English > fixes the talking clock. Note that the Days of the week were not > translated, but everything else was. Log attached. There is no e-speak "voice" or "language" file specific for Maori. I think Barry Vercoe will be looking into addressing that. http://espeak.sourceforge.net/languages.html http://espeak.sourceforge.net/voices.html > Speak has an english accent and doesn't understand the macrons. The > robot greeting "I'm a robot alice..." has been translated but the > robot converses in english otherwise. Same issue as talking clock, both use e-speak voice engine. One alternative used by some people is to try all different available voice options to find one that sounds approximately like it should (based on similar language phoneme structure). This is a poor alternative to having a language specific voice, but might work in the interim. cjl ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: XO-1.5's sudden death - oven resurrected!
--- On Tue, 10/16/12, James Cameron wrote: > From: James Cameron > Subject: Re: XO-1.5's sudden death - oven resurrected! > To: "Yioryos Asprobounitis" > Cc: "OLPC Devel" , "Chris Leonard" > > Date: Tuesday, October 16, 2012, 12:26 AM > On Mon, Oct 15, 2012 at 09:09:07PM > -0700, Yioryos Asprobounitis wrote: > > Having said that, in cases like the XO boards I think > that we could > > and *should* know, at least the chemicals involved > > Means that for each assembly, down to component level, the > materials > would have to be determined, along with the expected outgas, > and then > compared against a food safety standard. We might have > to start > several new production processes for components in order to > meet > standards for edibility and kitchen equipment safety. > > I estimate the cost per laptop would rise by a factor of > 1000 or so. > > I'm sorry, but we cannot afford this kind of ideal. Sure! If you have no intention to provide the *names* of the "chemicals involved"... Seriously though, looking at the RoHS it would appear the known toxic chemicals are bellow 0.1% (1000ppm) on the original material. Considering volatility and standards, I would say pretty safe! Standard floor dast wipes in a city home or outdoors soil for example, give ~200ppm for lead, and in the wilderness soil lead is still 50ppm. Cadmium is also pretty safe given that its limit in *food colors* is 15ppm. This would be true for the rest of the chemicals in the list. But I'm interested on what is not in the list (Not its level necessarily). Disclosure: I'm a chemist by training :-) > > -- > James Cameron > http://quozl.linux.org.au/ > ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [OLPC-AU] Testing Summary - Auckland 13 October 2012
Hi all All the bugs, enhancements were recorded in the system. On 13 October 2012 13:22, Tabitha Roder wrote: > Auckland Testing Summary 13 October 2012 > Who: Alana, Fabiana, John, Oliver, Tabitha and Tom > > Rosella: XO-1.5 One Education OS 1.2 (build au248), Firmware Q3C09 > with first language Maori and second language English (Great Britain) > > Moon failed to start, but works if you change the language back to > English, log file attached for failed to start case > https://sugardextrose.org/issues/2428 > > Firefox froze when you press the stop button https://sugardextrose.org/issues/2460 > Tam Tam Mini was mostly translated but the category names (percussion, > animal etc for the instruments) were not > https://sugardextrose.org/issues/2461 > > Record photos and videos worked fine > > Clock does not speak the time but otherwise works. Changing to English > fixes the talking clock. https://sugardextrose.org/issues/2462 > Note that the Days of the week were not > translated, but everything else was. Log attached. > https://sugardextrose.org/issues/2463 > > Screencast encoding was very slow. Can you tell us approximately how much time it was taking for a video to encode in all three formats(low, medium,high) https://sugardextrose.org/issues/1285 > No translation. Saves to journal. > https://sugardextrose.org/issues/2469 > Attempting to play from the journal launches jukebox but the video > doesn't play > https://sugardextrose.org/issues/2470 > > Physics works > > Numbers works > > Speak has an english accent and doesn't understand the macrons. The > robot greeting "I'm a robot alice..." has been translated but the > robot converses in english otherwise. > https://sugardextrose.org/issues/2464 > > > > Ivy: XO-1.5 One Education OS 1.2 (build au248), Firmware Q3C07 in English > Maze, Memorize, Speak, Moon, Clock, Physics, Arithmetic, Implode, Tam > Tam Mini all worked > > Turtle Machine: Three people (including a neuroscientist and a primary > school teacher and a teacher of teachers) all got stuck at level 9 and > couldn't get past it. Our school teacher suggests that once you > complete a shape you should get told the name but we're not sure what > to do when the shapes don't really have names. We also think there > should be some sort of hint or help facility. It would also be good to > skip a level if you get stuck on it but maybe this is cheating. You > don't actually have to do very much for the first levels because all > you have to do is click on the number and it auto-advances to the > correct value (it jumps values, 1,2,3,4,5,6,8,12,30) and choose one > angle less than what is already selected. Perhaps these should be > type-in boxes where you have to choose the right angle? Eventually (7 > hours later on revisiting the activity) we found there was a library > of shapes created that we could reuse. > https://sugardextrose.org/issues/2465 > > Both One Education builds ask for the users age when you first start > the laptop but you cannot enter an age with the keyboard, you have to > use the clickers or the arrow keys. > This was an expected behaviour. https://sugardextrose.org/issues/1592 > > > XO-1.75 running One Education OS 1.2 (build au48) > Moon, Implode, Memorize, Numbers, Slider Puzzle, Dimensions, Clock all work > > Jigsaw was unusably slow when dragging pieces > https://sugardextrose.org/issues/2466 > > Screencast stops recording after one second and doesn't save anything > in the journal (but it says it does) > https://sugardextrose.org/issues/2468 > > The vmeta drivers won't load on this XO as they are for a different > architecture. Is there any other way to get hardware accelerated video > playback working? > https://sugardextrose.org/issues/2467 > > > XO-4 running 13.1.0 for XO-1.4 (build 5), firmware Q7B01 > Startup sound has a raspy quality, pressing reasonably hard on the > right hand speaker grille seems to make it much better. > > This laptop didn't shut down properly (perhaps because the shutdown > screen isn't always correctly understood) and stayed on in the bag. It > doesn't seem to have suffered from this. > > Touchscreen has an offset which makes using it quite difficult. Is > there any further protection for the screen planned? It doesn't feel > as robust to impact as any tablet I've used, and the matt finish looks > like it might collect scratches. > > There is a slight misalignment between the game key holes and the game > keys. This doesn't seem to stop them working. The front panel finish > is glossy with faint tool marks, while the finish on the rest of the > laptop is textured. > > The rotate button doesn't do anything > > Write works > > Get Books works but doesn't show icon as being coloured after you use it > > Read works > > Wikipedia didn't load any pages, it looked like it started to progress > but it didn't > > Maze works > > Browse works but clicking in the dark areas of the scroll bar causes > the screen to scro
Re: XO-1.5's sudden death - oven resurrected!
I've given multiple machines to anna to 'bake'. Alas, it is my feedback that In general, they've ressurrected but only for a short period of time. I am unaware of a long term solution for the ramp machines. KG Sent from my BlackBerry device on the Rogers Wireless Network -Original Message- From: John Watlington Sender: devel-boun...@lists.laptop.org Date: Tue, 16 Oct 2012 00:54:53 To: Chris Leonard Cc: OLPC Devel; Yioryos Asprobounitis Subject: Re: XO-1.5's sudden death - oven resurrected! On Oct 16, 2012, at 12:27 AM, Chris Leonard wrote: >> Having said that, in cases like the XO boards I think that we could and >> *should* know, at least the chemicals involved > > This link is the RoHS declaration for the XO-1. I have no knowledge > of the potential changes in chemical composition between the XO-1 and > the XO-1.5 or of the availability of the RoHS certificate for the > XO-1.5 at this point in time. > > http://wiki.laptop.org/images/d/d2/RoHS.pdf > > I imagine this would probably be a reasonable approximation of what an > XO-1.5 RoHS sheet would look like, but that is purely speculation on > my part. Yes, every XO model meets RoHS. Starting with the latter half of XO-1.5 production, we also meet the USA's Consumer Product Safety Improvement Act as a child's toy. This covers nasties like phthalates (the power supply cord wasn't passing at first). The motherboards are not, however, halogen free. Despite all this certification, I know that compliance checking of suppliers/materials is expensive and rarely done periodically (the power supply cord manufacturer assured us that the second and third failing samples were phthalate-free!) Take caution (and preheat the board at 80C for an hour, not 15 min.) Regards, wad ___ 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: XO-1.5's sudden death - oven resurrected!
On Oct 16, 2012, at 12:27 AM, Chris Leonard wrote: >> Having said that, in cases like the XO boards I think that we could and >> *should* know, at least the chemicals involved > > This link is the RoHS declaration for the XO-1. I have no knowledge > of the potential changes in chemical composition between the XO-1 and > the XO-1.5 or of the availability of the RoHS certificate for the > XO-1.5 at this point in time. > > http://wiki.laptop.org/images/d/d2/RoHS.pdf > > I imagine this would probably be a reasonable approximation of what an > XO-1.5 RoHS sheet would look like, but that is purely speculation on > my part. Yes, every XO model meets RoHS. Starting with the latter half of XO-1.5 production, we also meet the USA's Consumer Product Safety Improvement Act as a child's toy. This covers nasties like phthalates (the power supply cord wasn't passing at first). The motherboards are not, however, halogen free. Despite all this certification, I know that compliance checking of suppliers/materials is expensive and rarely done periodically (the power supply cord manufacturer assured us that the second and third failing samples were phthalate-free!) Take caution (and preheat the board at 80C for an hour, not 15 min.) Regards, wad ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: XO-1.5's sudden death - oven resurrected!
On Tue, Oct 16, 2012 at 12:09 AM, Yioryos Asprobounitis wrote: > --- On Mon, 10/15/12, Chris Leonard wrote: > >> From: Chris Leonard >> Subject: Re: XO-1.5's sudden death - oven resurrected! >> To: "James Cameron" , "Yioryos Asprobounitis" >> , "OLPC Devel" >> Date: Monday, October 15, 2012, 4:41 PM >> On Mon, Oct 15, 2012 at 4:33 PM, >> James Cameron >> wrote: >> > I recommend never using that household oven for food >> again, because we >> > have no clear idea what poisons might be ingested, or >> what effects >> > they might have. >> > >> >> James raises an important safety issue. In spite of >> OLPC's careful >> attention to "green design", electronics manuafacturing (or >> re-working) certainly involves a some level of exposure to >> toxic >> materials. With heating there are potentially toxic >> metal vapors or >> volatile organic components from the plastics (particularly >> halogenated organic molecules) that could present a food >> safety risk. >> >> If you find yourself unable to take his advice to dedicate >> that oven >> to non-food use, I would at least check to see if it has an >> "oven >> cleaning" cycle of prolonged high heat and I would do this >> in a >> well-ventialted work environment. >> >> cjl >> > > Safety was/is certainly a concern and is good that is brought up here. > I did make sure I was alone in the house in a well ventilated kitchen with > the hood running at the time and I did run the oven for an additional hour at > 250 C to get rid of any possible residue. > > I would certainly not recommend turning one's kitchen to reflow repair > facility, but I must contest the logic of "avoid what you do not know". > Living in a world that less than 0.1% of the chemicals that we are coming in > contact with every day have pass any serious, if at all, safety testing, this > approach is more philosophical than useful or protective. > > Having said that, in cases like the XO boards I think that we could and > *should* know, at least the chemicals involved This link is the RoHS declaration for the XO-1. I have no knowledge of the potential changes in chemical composition between the XO-1 and the XO-1.5 or of the availability of the RoHS certificate for the XO-1.5 at this point in time. http://wiki.laptop.org/images/d/d2/RoHS.pdf I imagine this would probably be a reasonable approximation of what an XO-1.5 RoHS sheet would look like, but that is purely speculation on my part. cjl ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: XO-1.5's sudden death - oven resurrected!
On Mon, Oct 15, 2012 at 09:09:07PM -0700, Yioryos Asprobounitis wrote: > Having said that, in cases like the XO boards I think that we could > and *should* know, at least the chemicals involved Means that for each assembly, down to component level, the materials would have to be determined, along with the expected outgas, and then compared against a food safety standard. We might have to start several new production processes for components in order to meet standards for edibility and kitchen equipment safety. I estimate the cost per laptop would rise by a factor of 1000 or so. I'm sorry, but we cannot afford this kind of ideal. -- James Cameron http://quozl.linux.org.au/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: XO-1.5's sudden death - oven resurrected!
--- On Mon, 10/15/12, Chris Leonard wrote: > From: Chris Leonard > Subject: Re: XO-1.5's sudden death - oven resurrected! > To: "James Cameron" , "Yioryos Asprobounitis" > , "OLPC Devel" > Date: Monday, October 15, 2012, 4:41 PM > On Mon, Oct 15, 2012 at 4:33 PM, > James Cameron > wrote: > > I recommend never using that household oven for food > again, because we > > have no clear idea what poisons might be ingested, or > what effects > > they might have. > > > > James raises an important safety issue. In spite of > OLPC's careful > attention to "green design", electronics manuafacturing (or > re-working) certainly involves a some level of exposure to > toxic > materials. With heating there are potentially toxic > metal vapors or > volatile organic components from the plastics (particularly > halogenated organic molecules) that could present a food > safety risk. > > If you find yourself unable to take his advice to dedicate > that oven > to non-food use, I would at least check to see if it has an > "oven > cleaning" cycle of prolonged high heat and I would do this > in a > well-ventialted work environment. > > cjl > Safety was/is certainly a concern and is good that is brought up here. I did make sure I was alone in the house in a well ventilated kitchen with the hood running at the time and I did run the oven for an additional hour at 250 C to get rid of any possible residue. I would certainly not recommend turning one's kitchen to reflow repair facility, but I must contest the logic of "avoid what you do not know". Living in a world that less than 0.1% of the chemicals that we are coming in contact with every day have pass any serious, if at all, safety testing, this approach is more philosophical than useful or protective. Having said that, in cases like the XO boards I think that we could and *should* know, at least the chemicals involved ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: My XO-1.5 Lights
The LED intensities reflect the voltage of the main power rail of the XO, saving a small amount of power. When the laptop switches from charging to discharging the resulting change in brightness is noticeable. This can either be a diagnostic tool or an annoying distraction. There should be no visible change in brightness when running from battery. Cheers, wad On Oct 13, 2012, at 10:58 AM, Aaron Bedford wrote: > While on battery or the charger I noticed the green lights will flicker. The > power light does it the battery light will too along with the wifi lights. > They flicker the same way the lights in a house would during a storm when > then power goes in and out but not completely off. > > Is this common with this board > > ___ > 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: XO-1.5's sudden death - oven resurrected!
On Mon, Oct 15, 2012 at 4:33 PM, James Cameron wrote: > I recommend never using that household oven for food again, because we > have no clear idea what poisons might be ingested, or what effects > they might have. > James raises an important safety issue. In spite of OLPC's careful attention to "green design", electronics manuafacturing (or re-working) certainly involves a some level of exposure to toxic materials. With heating there are potentially toxic metal vapors or volatile organic components from the plastics (particularly halogenated organic molecules) that could present a food safety risk. If you find yourself unable to take his advice to dedicate that oven to non-food use, I would at least check to see if it has an "oven cleaning" cycle of prolonged high heat and I would do this in a well-ventialted work environment. cjl ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: XO-1.5's sudden death - oven resurrected!
I recommend never using that household oven for food again, because we have no clear idea what poisons might be ingested, or what effects they might have. On Mon, Oct 15, 2012 at 10:32:43AM -0700, Yioryos Asprobounitis wrote: > --- On Mon, 10/15/12, James Cameron wrote: > > > From: James Cameron > > Subject: Re: XO-1.5's sudden death > > To: "Yioryos Asprobounitis" > > Cc: "OLPC Devel" > > Date: Monday, October 15, 2012, 2:39 AM > > Yes, I know it so well known that I > > can remember the bug number, > > #10314.? I've had four laptops do this. > > > > http://dev.laptop.org/ticket/10314 > > I had forgotten about this. Yes is the same problem. > > So I tried a home bake (reflow) as originally reported by Anna [1] and > specified by wad [2] and worked beautifully :-) > > So here are my notes. > Used a standard household AEG electric convection oven (with the circulating > air) with the fan running. > > Add a tray close to the bottom and another close to the top (so will no be > any direct heating) > Add 4 shut-glasses or expresso cups to support the board. > Heat the oven to 80 C. > Remove the board from the XO-1.5 [3] > Remove the RTC battery, the wifi module, the mico-SDcard and the camera > (including its white plastic support that sits over the USB port). > Put the board in the oven over the glasses (cups) touching the grasses with > the protruding usb, audio, etc connectors (CPU and other chips facing up) for > 15min at 80C. > Remove the board. Turn up the oven to 180C. > When it reaches the temperature for 5-10 minutes (as indicated by the > thermostat light), turn the fan off (so will not cool down when you open the > oven) put the board on top of the 4 glasses and turn the fan on. > After 90sec turn the temperature of the oven up to 220C with the board in (my > oven takes 3'40" to get there) > After 60sec at 220C turn the temperature up to 260C (at least 250C if your > oven does not go higher) > At 9 minutes from the start of the run turn off the heat (not the fan) open > oven door (the temperature in my oven was ~250C at the time) and let it cool > down a bit. > Remove from the oven and cool it to room temperature (~15 min) > Reassemble. > > My only loss was the camera support plastic that I did not remove and became > a nice little ball. A piece of cardboard and some double-sided adhesive tape, > replaces it now in my XO. > Passed all the hardware tests with no problem except the RTC clock that needs > resetting. > My XO-1.5 is back in business! > > [1] http://lists.laptop.org/pipermail/devel/2011-August/032908.html > [2] http://lists.laptop.org/pipermail/devel/2011-August/032938.html > [3] http://wiki.laptop.org/images/d/d9/XO_Disasembly_%28Top%29.pdf > > > On Sun, Oct 14, 2012 at 10:35:32PM -0700, Yioryos > > Asprobounitis wrote: > > > My XO-1.5 that I use daily appears dead this morning. > > :-( > > > Was working trouble free till last night (os885). > > > Powered off normally? and this morning when > > powering up the power light comes up green, the screen > > flashes momentarily (screen lights OK I assume) and then > > nothing. > > > No screen, no chime. nothing. > > Reset???EC, battery, power, no change.? > > > > > Is it something that has been seen with XO-1,5s. Is > > salvageable at this point? (other than removing the SDcard > > and snatching the other XO-1.5 from my son `;-) Is the > > booting going to stop (no chime) if the screen is dead? Can > > the serial port be used for diagnosis at this early stage if > > is not the screen? > > > Sorry if too many questions but I *use* the specific XO > > beyond testing and hacking and I hate losing it. > > > I would appreciate any guidance on the recommended > > steps to approach this. > > > Thx? > > > ___ > > > Devel mailing list > > > Devel@lists.laptop.org > > > http://lists.laptop.org/listinfo/devel > > > > -- > > James Cameron > > http://quozl.linux.org.au/ > > -- James Cameron http://quozl.linux.org.au/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
RE: XO 1.5 not booting in "pretty boot" mode
> Can you hook up a serial console to see whats going on with the pretty boot? Hi Daniel, See above the trace extracted from Serial console. It don't talk to me. Lionel. [0.604871] system 00:0a: [io 0x0500-0x050f] has been reserved [0.610824] system 00:0a: [mem 0xfed3-0xfed300ff] has been reserved [0.617484] system 00:0a: [mem 0xfed3-0xfed30fff] could not be reserved [0.624495] system 00:0b: [mem 0x-0x0009] could not be reserved [0.631486] system 00:0b: [mem 0x000e-0x000f] could not be reserved [0.638493] system 00:0b: [mem 0x0010-0x3bff] could not be reserved [0.685247] pci :00:01.0: BAR 6: assigned [mem 0x4000-0x4000 pref] [0.692522] pci :00:13.0: PCI bridge to [bus 01-01] [0.697793] pci :00:13.0: bridge window [io disabled] [0.703491] pci :00:13.0: bridge window [mem disabled] [0.709183] pci :00:13.0: bridge window [mem pref disabled] [0.715587] NET: Registered protocol family 2 [0.720096] IP route cache hash table entries: 32768 (order: 5, 131072 bytes) [0.727896] TCP established hash table entries: 131072 (order: 8, 1048576 bytes) [0.738035] TCP bind hash table entries: 65536 (order: 8, 1310720 bytes) [0.747211] TCP: Hash tables configured (established 131072 bind 65536) [0.753890] TCP reno registered [0.757256] NET: Registered protocol family 1 [0.761851] pci :00:13.0: disabling DAC on VIA PCI bridge [0.767806] Trying to unpack rootfs image as initramfs... [0.797630] Freeing initrd memory: 4020k freed [0.810073] olpc-pm-1.5: GPE = 0x1 [0.813781] input: OLPC AC power jack as /devices/virtual/input/input0 [0.880632] olpc-pm-1.5: EC manager initialized [0.913619] HugeTLB registered 4 MB page size, pre-allocated 0 pages [0.920272] VFS: Disk quotas dquot_6.5.2 [0.924280] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) [0.990529] PROM: Built device tree with 39981 bytes of memory. [0.996585] msgmni has been set to 1879 [1.001289] modprobe used greatest stack depth: 3016 bytes left [1.009393] io scheduler noop registered [1.013469] io scheduler cfq registered (default) [1.018572] VIA Graphics Intergration Chipset framebuffer 2.4 initializing [1.025629] viafb :00:01.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [1.069071] Console: switching to colour frame buffer device 100x40 [1.102738] olpc-dcon: Discovered DCON version 2 [1.136284] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/PNP0C0D:00/input/input1 [1.146486] ACPI: Lid Switch [LID] [1.150421] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input2 [1.158344] ACPI: Power Button [PWRF] [1.162559] Marking TSC unstable due to TSC halts in idle [1.169059] Non-volatile memory driver v1.3 [1.173601] VIA RNG detected [1.176781] Linux agpgart interface v0.103 [1.181185] Serial: 8250/16550 driver, 1 ports, IRQ sharing enabled [1.199823] Switching to clocksource hpet ÿ[1.470267] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A [1.492467] brd: module loaded [1.507334] vx855-gpio vx855-gpio: found VX855 PMIO at base 0x420 [1.525226] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [1.543418] ehci_hcd :00:10.4: PCI INT D -> GSI 23 (level, low) -> IRQ 23 [1.562240] ehci_hcd :00:10.4: EHCI Host Controller [1.579099] ehci_hcd :00:10.4: new USB bus registered, assigned bus number 1 [1.598267] ehci_hcd :00:10.4: debug port 1 [1.614301] ehci_hcd :00:10.4: irq 23, io mem 0x80003000 [1.650028] ehci_hcd :00:10.4: USB 2.0 started, EHCI 1.00 [1.667223] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 [1.685496] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [1.704134] usb usb1: Product: EHCI Host Controller [1.720282] usb usb1: Manufacturer: Linux 2.6.35.13_xo1.5-20111026.1209.olpc.5d76efb ehci_hcd [1.740423] usb usb1: SerialNumber: :00:10.4 [1.756886] hub 1-0:1.0: USB hub found [1.771908] hub 1-0:1.0: 6 ports detected [1.787277] uhci_hcd: USB Universal Host Controller Interface driver [1.805048] uhci_hcd :00:10.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [1.823612] uhci_hcd :00:10.0: UHCI Host Controller [1.840237] uhci_hcd :00:10.0: new USB bus registered, assigned bus number 2 [1.859097] uhci_hcd :00:10.0: irq 20, io base 0x8000 [1.876153] usb usb2: New USB device found, idVendor=1d6b, idProduct=0001 [1.894189] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [1.912611] usb usb2: Product: UHCI Host Controller [1.928383] usb usb2: Manufacturer: Linux 2.6.35.13_xo1.5-20111026.1209.olpc.5d76efb uhci_hcd [1.947935] usb usb2: SerialNumber: :00:10.0 [1.963937] hub 2-0:1.0: USB hub found [1.978441] hub 2-0:1.0: 2 ports detected [1
Re: XO-1.5's sudden death - oven resurrected!
--- On Mon, 10/15/12, James Cameron wrote: > From: James Cameron > Subject: Re: XO-1.5's sudden death > To: "Yioryos Asprobounitis" > Cc: "OLPC Devel" > Date: Monday, October 15, 2012, 2:39 AM > Yes, I know it so well known that I > can remember the bug number, > #10314. I've had four laptops do this. > > http://dev.laptop.org/ticket/10314 I had forgotten about this. Yes is the same problem. So I tried a home bake (reflow) as originally reported by Anna [1] and specified by wad [2] and worked beautifully :-) So here are my notes. Used a standard household AEG electric convection oven (with the circulating air) with the fan running. Add a tray close to the bottom and another close to the top (so will no be any direct heating) Add 4 shut-glasses or expresso cups to support the board. Heat the oven to 80 C. Remove the board from the XO-1.5 [3] Remove the RTC battery, the wifi module, the mico-SDcard and the camera (including its white plastic support that sits over the USB port). Put the board in the oven over the glasses (cups) touching the grasses with the protruding usb, audio, etc connectors (CPU and other chips facing up) for 15min at 80C. Remove the board. Turn up the oven to 180C. When it reaches the temperature for 5-10 minutes (as indicated by the thermostat light), turn the fan off (so will not cool down when you open the oven) put the board on top of the 4 glasses and turn the fan on. After 90sec turn the temperature of the oven up to 220C with the board in (my oven takes 3'40" to get there) After 60sec at 220C turn the temperature up to 260C (at least 250C if your oven does not go higher) At 9 minutes from the start of the run turn off the heat (not the fan) open oven door (the temperature in my oven was ~250C at the time) and let it cool down a bit. Remove from the oven and cool it to room temperature (~15 min) Reassemble. My only loss was the camera support plastic that I did not remove and became a nice little ball. A piece of cardboard and some double-sided adhesive tape, replaces it now in my XO. Passed all the hardware tests with no problem except the RTC clock that needs resetting. My XO-1.5 is back in business! [1] http://lists.laptop.org/pipermail/devel/2011-August/032908.html [2] http://lists.laptop.org/pipermail/devel/2011-August/032938.html [3] http://wiki.laptop.org/images/d/d9/XO_Disasembly_%28Top%29.pdf > On Sun, Oct 14, 2012 at 10:35:32PM -0700, Yioryos > Asprobounitis wrote: > > My XO-1.5 that I use daily appears dead this morning. > :-( > > Was working trouble free till last night (os885). > > Powered off normally and this morning when > powering up the power light comes up green, the screen > flashes momentarily (screen lights OK I assume) and then > nothing. > > No screen, no chime. nothing. > Reset EC, battery, power, no change. > > > Is it something that has been seen with XO-1,5s. Is > salvageable at this point? (other than removing the SDcard > and snatching the other XO-1.5 from my son `;-) Is the > booting going to stop (no chime) if the screen is dead? Can > the serial port be used for diagnosis at this early stage if > is not the screen? > > Sorry if too many questions but I *use* the specific XO > beyond testing and hacking and I hate losing it. > > I would appreciate any guidance on the recommended > steps to approach this. > > Thx > > ___ > > Devel mailing list > > Devel@lists.laptop.org > > http://lists.laptop.org/listinfo/devel > > -- > James Cameron > http://quozl.linux.org.au/ > ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Regarding temporary "pauses", perhaps due to using an SD card with an XO
If I umount the SD card then the hang/pause-s stop. Of course, I than have no extra storage space for the XO. It would seem that there may be a system or kernel call that gets blocked by something related to the SD card mount. On 10/13/12, Chris Marshall wrote: > I too have observed increasingly often "pauses" > on my XO but have had no idea how or where to > start to debug the problem. > > One thought I had is that the swap file on the SD > card is the source of the problem (somehow) but > I still have the pernicious/persistent hanging even > without using the swapfile. > > I'll try with a brand new 16GB SD card to see if > that helps. > > --Chris > > On 10/13/12, Mikus Grinbergs wrote: >> Lately there has been discussion about using an SD card to expand the >> "storage" capability of the XO. [For instance, discussion of when an XO >> functions as a server, having it keep its database on an SD card.] >> >> What I want to mention is that I experience occasional "pauses" on my XO >> systems (each has a "permanent" SD card, on which I keep Activities, >> Linux executables, etc.). I do not know what causes these "pauses", but >> my best guess is the following (particularly since "pauses" often occur >> during a CLI command that is "massively" accessing the SD card). >> >> My guess: SD cards have an "embedded chip" which is responsible for >> "wear levelling" the electronic components used to keep the data. It >> does this by internally 'rearranging' "which data block is physically >> kept where". I think this 'rearranging' action by the "embedded chip" >> gets launched (when some 'internal' SD card thresholds are met) during >> an I/O access by the (XO) host -- and this "rearranging" results in that >> host's I/O access being DELAYED until the "embedded chip" is done. >> >> >> I have not compared the "performance" (from the user's point of view) of >> running an Activity "from the SD card" vs. running it "from the XO". >> But I do have the impression that the duration of the occasional >> "pauses" which I as a user notice while running "with the SD card" have >> gotten LONGER as my XOs have migrated to using ever-larger SD cards. >> >> mikus >> >> ___ >> 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
