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Alan Cox's Exploding Laptop

Bowie J. Poag writes to mention a page put up to commemorate the explosion of Alan Cox's laptop. From the article: "Alan was on the other side of the room from the laptop. I was elsewhere. He yelled out, I ambled towards the room in my own good time, and then I heard 'Fire! Real fire! Call the fire brigade, now!' and I speeded up a bit. From Alan subsequently, I gather there was an explosion and flying pieces of laptop, and a fireball, and a couple of fires started where (presumably) boiling battery landed, and one fragment smashed an LCD monitor. And then there was smoke and smell (there is still smell) and smoke alarm wailing and firemen and sirens and paramedics (happily unneeded) and police and a man with a notebook asking questions for the fire report.'"

61 of 339 comments (clear)

  1. His own fault... by Pink+Tinkletini · · Score: 5, Funny

    ...for buying an IBM ThinkPad, notorious for their unreliability. Perhaps he should have considered an Apple or Dell instead.

    1. Re:His own fault... by AKAImBatman · · Score: 4, Insightful
      Perhaps he should have considered an Apple or Dell instead.

      Or perhaps he should have bought his battery in shrinkwrap from a reputable dealer rather than getting an after-market battery off of eBay? Even if it's a "genuine" IBM, for all he knows he ended up with a recall unit that somehow (*cough*) got resold on the open market.

      There are some things you DO NOT trust after-market vendors for. One of those things happens to be a highly explosive Lithium Ion battery pack. There are enough problems with the first party units to give pause to anyone even considering third party units. Getting off of eBay? Now that's just asking for trouble. :-/
    2. Re:His own fault... by phasm42 · · Score: 5, Funny

      Time to adjust your sarcasm detector.

      --
      "No one likes working in a hamster wheel, and your shop smells of cedar shavings from here." - TaleSpinner
    3. Re:His own fault... by Anonymous Coward · · Score: 4, Insightful

      The problem is that the "reputable dealers" have ridiculous markups on replacement parts. You can get a digital camera battery for $40 or for $4. For most people the $4 batteries work just the same and don't fail. Actually I am under the impression that more name brand batteries have been the cause of laptop fires than others, perhaps because they are supposed to be the best performing batteries, so they have to cut more corners than generics. One thing which could really help the situation is standardization: It would bring prices down by enabling competition and reducing the number of different battery packs a manufacturer needs to support. That would pretty much eliminate the need or desire to buy off-brand batteries.

    4. Re:His own fault... by Firehed · · Score: 4, Funny

      Let me rephrase that for you:

      *woosh*

      --
      How are sites slashdotted when nobody reads TFAs?
    5. Re:His own fault... by toQDuj · · Score: 5, Interesting

      Hmm, yes, quite like the Exploding Nokia batteries, indistinguishable from genuine Nokia batteries (according to Nokia), but fake batteries nonetheless (according to Nokia again).

      Here's my thoughts: Nokia bought a batch of faulty batteries bud didn't want to admit it. Therefore they said the batteries weren't theirs, even though they coulod not make the distinction.

      The real reason you should be buying laptop batteries directly from the manufacturer (or in this case, the vendor: Apple, Dell or IBM) and not a reseller, is that the Li-ion batteries start degrading as soon as they're manufactured due to stresses in the crystal matrix. It does not matter much, therefore, how the batteries are used, for they will only last up to three years before cells will break. Thus, you want the batteries as fresh from the factory as possible, which is why you buy them from the vendor and not a reseller, because the turnover speed at the vendor is greater.

      Explosions are quite common to high-capacity batteries. It's the energy, you see.

      B.

      --
      Every experiment which ends in a big bang is a good experiment.
    6. Re:His own fault... by pchan- · · Score: 5, Funny

      Think of this as a learning experience If Linux had implemented BeOS's is_computer_on_fire()* system call, he would have been able to log the situation, send an email to his friend to alert the authorities, and shut down cleanly.

      *Yes, it's actually in the OS.

    7. Re:His own fault... by arivanov · · Score: 3, Informative

      RTFA: he bought the battery off eBay. Nuff said, no need to say more, move along.

      --
      Baker's Law: Misery no longer loves company. Nowadays it insists on it
      http://www.sigsegv.cx/
    8. Re:His own fault... by mpcooke3 · · Score: 2, Funny

      "That man has a point" he says whilst carefully taking his nokia-phone/ebay-battery out of his pocket and further away from his valuable parts.

    9. Re:His own fault... by bytesex · · Score: 3, Funny

      I also very much like the is_computer_on() functioncall, documented on the same page, which returns 1 if your computer is on, otherwise undefined. Very clever.

      --
      Religion is what happens when nature strikes and groupthink goes wrong.
    10. Re:His own fault... by ozmanjusri · · Score: 4, Funny
      carefully taking his nokia-phone/ebay-battery out of his pocket and further away from his valuable parts.

      Just to clarify, this being Slashdot, the "valuable parts" being referred to are his PDA, and extensive collection of Star Trek trading cards.

      --
      "I've got more toys than Teruhisa Kitahara."
    11. Re:His own fault... by Trogre · · Score: 2, Funny

      Yes I can see the message now.

      "
      Fire - exclamation mark - fire - exclamation mark - help me - exclamation mark. 123 Cavendon Road. Looking forward to hearing from you. Yours truly, Alan Cox
      "

      --
      "Nine times out of ten, starting a fire is not the best way to solve the problem." - my wife
    12. Re:His own fault... by mpcooke3 · · Score: 2, Funny

      ha ha, funny and so original.

      Anyway, I'm going to buy stronger card protectors just in case.

    13. Re:His own fault... by WWWWolf · · Score: 2, Informative
      I didn't hear about that. Do you know when they removed it?

      Ooops! Looks like it still exists: drivers/char/lp.c: printk(KERN_INFO "lp%d on fire\n", minor);. And here I could have sworn it was removed at one point.

      I knew for sure that it did exist all this time in USB printer code, though. drivers/usb/class/usblp.c: static const char *usblp_messages[] = { "ok", "out of paper", "off-line", "on fire" };

      And actually, now that I'm grepping kernel source, looks like there is a kernel-level yes-i'm-on-fire message of some kind: arch/i386/kernel/cpu/mcheck/p5.c: printk(KERN_EMERG "CPU#%d: Possible thermal failure (CPU on fire ?).\n", smp_processor_id());

      Still, I mourn the fact that libc5 had "not a typewriter" and glibc has "inappropriate ioctl for device"... GNU project produces mostly boring and to-the-point software =)

  2. Then the insurance guy says... by __aaclcg7560 · · Score: 5, Funny

    "What? Exploding laptop and you're running linux? Oh, we don't cover that."

    1. Re:Then the insurance guy says... by Almost-Retired · · Score: 3, Interesting

      "What? Exploding laptop and you're running linux? Oh, we don't cover that."

      Sorry, but I believe HP has a trademark on that phrase, as I was so exquisitly told by the circuit city folks when I indicated that the HP5320dv I'd just bought would probably have linux on it in less than 48 hours. I picked up the warranty form and said, well, I just guess the lawyers will have to sort that out now won't we? It did get FC5 installed as soon as I could make backups to dvd's, and works great with FC5 on it except for the broadcom radio in it.

      In any event, this, because its Alan Cox's machine, may well be the most famous blowup yet.

      I don't know what type of battery is in my HP, but its been very well behaved so far. That knocking sound? Thats me, knocking on the wood of the tabletop here. :-)

      --
      Cheers, Gene

  3. Alan Cox... by in2mind · · Score: 2, Informative

    Alan Cox (born 1968) is a programmer heavily involved in the development of the Linux kernel since its early days (1991). Whilst employed on the campus of University of Wales, Swansea, he installed a very early version of Linux on one of the machines belonging to the university computer society. This was one of the first Linux installations on a busy network, and revealed many bugs in the networking code. Cox fixed many of these bugs, and went on to rewrite much of the networking subsystem. He then became one of the main developers and maintainers of the whole kernel.

    1. Re:Alan Cox... by Anonymous Coward · · Score: 2, Funny

      This is Slashdot. We know who he is.

    2. Re:Alan Cox... by ozmanjusri · · Score: 4, Funny
      Just to continue the karma-whoring trend, I'll post a transcript of the actual conversation so you don't have to RTFA

      Cox: What happen ?
      Telsa: Somebody set up us the bomb.

      Telsa: We get fire.
      Cox: What !
      Telsa: Main screen lit up.
      Cox: It's you !!
      MS: How are you gentlemen !!
      MS: All your codebase are belong to us.
      --
      "I've got more toys than Teruhisa Kitahara."
    3. Re:Alan Cox... by Millenniumman · · Score: 2, Insightful

      But everyone on /. does have the Wikipedia reflex for unknown things. Or is that just me?

      --
      Stupidity is like nuclear power, it can be used for good or evil. And you don't want to get any on you.
  4. Re:Epidemic? by threephaseboy · · Score: 3, Informative

    Neither the MacBook or the iBook G4 have two latches on the screen, neither have audio jacks on the front, no apple notebook shipped with a 4 pin FireWire jack (on the front? are they serious??), etc.

    --
    .
  5. Re:Epidemic? by DustyShadow · · Score: 5, Funny

    Is that why there is a "Made for Windows XP" sticker on it?

  6. Re:It's not that surprising. by Anonymous Coward · · Score: 3, Insightful

    Maybe somebody will build a laptop that doesn't require you to "take the battery out of the computer unless they need it." I have a UPS battery backup for my desktop system, and I don't have to pull the battery out of it when I'm not expecting to need to use the battery. That would defeat the whole point of having the thing. I think a lot of people are using their laptops like that, it's their main computer and they like the fact that it has a battery too so they can survive without it plugged in for an hour or two.

  7. If you were wondering if NiMH was competitive... by WoTG · · Score: 2, Informative

    I got curious about how much better Lithium Ion batteries were than Nickel Metal Hydride. So, here are a few numbers I quickly grabbed from the Wikipedia.

    Li-Ion:
    http://en.wikipedia.org/wiki/Lithium_ion_battery
    Energy/weight ~150 Wh/kg
    Energy/size ~250 Wh/L

    NiMH:
    http://en.wikipedia.org/wiki/Nickel_metal_hydride_ battery
    Energy/weight 60-?? Wh/kg
    Energy/size 100 Wh/L

    My laptop gets a couple hours of battery life with Li-Ion. It looks like I'd get about 40% of that with NiMH -- not that appealing. I don't think we'll be turning back any time soon.

    I just hope that the next generation of battery technolgy is inherently less likely to explode.

  8. Laptop? by RKBA · · Score: 2, Insightful

    Good thing no one actually puts Laptop computers in their lap.

    1. Re:Laptop? by OldManAndTheC++ · · Score: 5, Funny

      they aren't designed to be used on laps or any other surface

      Drat. Now I'll have to go shopping for a surface-less table. Perhaps "Klein Bottles-R-Us" has what I need...

      --
      Soylent Green is peoplicious!
  9. Re:Data Recover by Beryllium+Sphere(tm) · · Score: 4, Informative

    They handle fire- and smoke-damaged equipment all the time.

    At the risk of being arrested and taken to a home for the criminally obvious, don't breathe any of the smoke from an exploding battery. Some formulations burn into chemicals that you don't want anywhere near you, such as hydrofluoric acid. It's not that strong an acid but it's remarkably destructive to flesh. If you do get a whiff of smoke go to the emergency room even if you feel OK.

  10. Did Sony know about the batteries? by Juggler9 · · Score: 4, Interesting

    Question: With all of the exploding batteries lately (Apple, Dell, Toshiba, IBM/Lenovo (possibly), etc. Have you seen any reports of Sony laptops exploding?

    Does Sony "cherry-pick" the A-grade batteries for their own use and send the B-grade and lower ones to their clients?

    If so, what kind of liability issues does that raise. Sony HAS done some questionable things in the past knowingly. ;)

    --
    Someday we'll all look back on this and plow into a parked car.
    1. Re:Did Sony know about the batteries? by bluephone · · Score: 3, Funny
      "Sony HAS done some questionable things in the past knowingly. ;)"

      Riiiiiiiight, sure they have. Do you expect me to believe a multibulliondollar international corporation would be so stupid as to do something as underhanded like distribute under-tested batteries or stealth-installer-rootkits on music CDs? Pfeh. Next thing you'll try and tell me Ford made exploding cars...

      --
      jX [ Make everything as simple as possible, but no simpler. - Einstein ]
    2. Re:Did Sony know about the batteries? by Kaenneth · · Score: 3, Funny

      I just realized, Searching for "export weapon restrictions" may not have been the best idea.

      If anyone needs me, call the CIA's secret prison administrators.

    3. Re: Did Sony know about the batteries? by Anonymous Coward · · Score: 2, Interesting

      It won't be a surprise to me that Sony "cherry-pick" A-grade batteries for its own use.

      If Sony battery only fails in one particular brand of computer (say Dell), we can still blame Dell engineers for failed charging circuit design. But, now, it is basically everyone who use Sony batteries (with exception to Sony itself). I can only draw one of the two conclusions: First, Sony "cherry-pick" A-grade batteries for its own use and they know the B-grade batteries can explode. That would be criminal. I don't think (and hope) they sink that low. Second, Sony engineers discovered that their batteries will work probably only if they "tweak" the charging circuit in some special way and fail (or reluctant) to release those recommendations to other manufacturers.

      If that's the case, should that be classified as neligience or as prefectly okay commerical practice?

  11. Beowulf Clusters by Greg+Lindahl · · Score: 2, Funny

    Good thing we don't make Beowulf Clusters out of laptops, or then I could say...

  12. Wait 'til the FAA sees this... by junk · · Score: 4, Insightful

    With the current trend in battery explosions for laptops, I wonder how long until all laptops are considered explosive devices and aren't allowed to be used on planes. Perhaps we should start using things that are more stable. Like radioactive material or internal combustion engines. Ooh! Or we could all get neat little hand cranks!

    What am I going to do on my flight to Germany now?

    1. Re:Wait 'til the FAA sees this... by LiquidCoooled · · Score: 2, Funny

      Instead of a hand crank, some kind of foot powered rig would be good for aircraft (like the old sweing machines).
      It would also have the benfit of getting you active and would help to prevent a DVT on a long haul flight.

      --
      liqbase :: faster than paper
  13. Real source of "info" on Alan Cox by rsborg · · Score: 5, Informative
    ...Whilst employed on the campus of University of Wales...

    Now where have I read that phrase before? *googles* oh yeah...

    Dude, at least site the source of your data (and more complete information at that): wikipedia page for Alan Cox.

    --
    Make sure everyone's vote counts: Verified Voting
    1. Re:Real source of "info" on Alan Cox by Hebbinator · · Score: 2, Informative

      thats why people list sources... otherwise, "credit" for the writing/research is automatically subcribed to you. I understand that there is zero malicious intent, and that you dont actually get anything out of it, but thats what your teachers were talking about when they told you about plagiarism - repeating others work without credit.

    2. Re:Real source of "info" on Alan Cox by Professor_UNIX · · Score: 3, Funny
      thats what your teachers were talking about when they told you about plagiarism

      For those that aren't aware, plagiarism is the practice of dishonestly claiming original authorship of material which one has not actually created, such as when a person incorporates material from someone else's work into his own work without attributing it. Within academia, plagiarism is seen as academic dishonesty, and is a serious and punishable academic offense.
  14. Phew, that was close by RevRigel · · Score: 2, Funny

    Alan Cox is an important leader and resource in the Linux community. On behalf of all Linux users, I hope that, for the sake of our collective Cox, manufacturers can sort out these battery issues.

  15. IBM Tech Support by spoonboy42 · · Score: 4, Funny

    We regret to inform you, Mr. Cox, that since you were operating with an unsupported software configuration (i.e. Linux) we can not offer you support in regards to your issue (spontaneous incendiary explosion). Thank you for purchasing an IBM thinkpad.

    Sincerely,
    IBM Tech Support

    --
    Anonymous Luddite: "What do you think of the dehumanizing effects of the Internet?"
    Andy Grove: "Not Much."
  16. Heh. by Square+Snow+Man · · Score: 5, Funny

    Coming Soon Laptops On A Plane!

  17. Re:I was worried for a sec... by mwanaheri · · Score: 5, Funny

    I am worried. 'real fire'? How virtual must your reality be to shout 'real fire'?

    --
    Idha khatabahum lijahiluna qalu salaman
  18. This is good news, everyone by YetAnotherLogin · · Score: 3, Funny

    Great! Sounds like Alan Cox has finally added support for the RJE and EOI opcodes to the Linux kernel.

  19. "unexploded" batteries by D4C5CE · · Score: 4, Funny
    I also took the other two unexploded battery cells out
    Now that's one nice word they've come up with, to distinguish the two categories of battery found in laptops. ;-)
    1. Re:"unexploded" batteries by MobileTatsu-NJG · · Score: 2, Funny

      "Now that's one nice word they've come up with, to distinguish the two categories of battery found in laptops. ;-)"

      When they fix this problem, laptop batteries will have a warning sticker that says 'inexplodable'.

      --

      "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

    2. Re:"unexploded" batteries by noidentity · · Score: 3, Funny

      It's a useful word, too:

      FS: Two unexploded laptop batteries cheap!

  20. Re:Microsoft's fault or global warming? by Mister+Transistor · · Score: 2, Informative

    You forgot a very likely possibility:

    4) Your computer is full of dust.

    Every 6 months or so, I take the computers outside and blow out the "Ghost Turds". I have a fairly dusty house, and when they are full of "Dust Bunnies", I know by the fact that my temp-controlled fans kick up speed at inappropriate times.

    --
    -- You are in a maze of little, twisty passages, all different... --
  21. Re:If you were wondering if NiMH was competitive.. by SEE · · Score: 2, Interesting

    For one, keep in mind that it's not a laptop, it's a notebook.

    So it's roughly 8.5" x 11" (A4 for the metric world)? Because, you see, the term "notebook" was specifically inaugurated for the subclass of laptops the approximate size of -- get this -- a notebook. With the ones even smalled than that being "subnotebooks".

    Laptop is an unfortunate consumer-ism

    No, it's a manufacturer-coined name for the class of machine small enought to fit on the lap and powered by batteries, going back to the advertising for the Gavilan SC.

  22. Re:Brigade by stevelup · · Score: 3, Informative

    Just about every single person living in the UK...

  23. how long? by mennucc1 · · Score: 3, Interesting

    If a battery is defective and may explode, how long would it take ? For example, suppose you buy one replacement lithium battery nowadays; and you use it for X months; may you say "I have used it for X months, it did not explode, so it is not defective" ? Or, otherwise, is it a defect that may show up in a random moment in the future? Does anyone here at /. know?

  24. Have there been any fatalities yet? by Erectile+Dysfunction · · Score: 2, Interesting

    These defective batteries are exploding a lot now, and it would seem like being directly near one of these would be a source of serious injury or even death. If no one is mamed or killed by this, it will be out of sheer luck. Hopefully this will be a wakeup call to battery manufacturers that, you know, they have to be conservative with battery production. People barely tolerate cars with defects that emerge during accidents; they are not going to appreciate having laptops that are bombs, carried around by their kids and significant others.

  25. Re:Brigade by robzster1977 · · Score: 3, Insightful

    Pretty much all of the UK. And since it appears that the UK started forming fire brigades just after the Great Fire Of London, that's probably where the name originates.

    Besides, 'Fire Department'? What's that? 'Department of Fire'? Hey, sounds like a fantastic place to work! Legal arson! ;)

  26. ya know why? by way2trivial · · Score: 2, Insightful

    'cause the reputable merchants have to have enough margin the accept returns, and recalls, and make things right.

    that's also the difference between the world of walmart, and the world of macys....

    --
    every day http://en.wikipedia.org/wiki/Special:Random
    1. Re:ya know why? by Anonymous Coward · · Score: 2, Informative

      I'm talking about digital camera batteries (in continuation of my previous comment). Those are LiIon batteries which replace the NB-1LH and NB-2LH. The original Canon batteries cost around $40, the off-brand replacements cost $4. If you take a closer look at the cellphone or laptop battery market, you will find the exact same situation. I just happened to know actual prices for digital camera batteries, so I used them as an example of the kind of markup which "reputable dealers" put on brand-name batteries.

  27. Re:Data Recover by Weedhopper · · Score: 3, Informative

    Yep. HF is straight up deadly. Eating away your flesh is the least of your worries when 3% covereage with .1M solution is enough to kill you in 48 hours. It's not a pleasant way to go, either.

    I used to work with HF in my lab when I was a grad student. Let me tell you, you start to follow lab safety procedures REAL careful like.

  28. Is his diary still in Welsh? by caluml · · Score: 2, Informative

    Is his diary still in Welsh?
    That's the silliest thing I ever knew. I used to read it, but now he's effectively cut it off for the non-Welsh speaking world.

  29. Re:Like, hey dude! You got one HOT De// by ivoras · · Score: 3, Insightful

    Shouldn't all this exploding-laptop trend really lead to producing more durable cases for portable devices? Like, if a "laptop" really exploded like this while on someone's lap, the person could be seriously injured. If it [the laptop] had a harder casing, possibly made of titanium, the risk of injury would be much less.

    --
    -- Sig down
  30. Re:Like, hey dude! You got one HOT De// by Anonymous Coward · · Score: 3, Insightful

    I think that would depend on which part would be made more durable. If you reinforced the entire casing then you might just make the explosion build up more pressure and potentially making it even more dangerous. It would probably be a good thing to reinforce the entire casing except the back so the explosion is aimed in the safest direction, like a shaped charge.

  31. Re:wouldn't it be ironic by Gleng · · Score: 4, Insightful
    wouldn't it be ironic if he was masturbating and his cock also exploded?

    No, Alanis, it would be a coincidence. It would be ironic if he was working on a battery status monitoring program when it exploded.

    --
    "Proudly Posting Without Reading The Article"
  32. Re:Data Recover by DilbertLand · · Score: 2, Informative

    Actually, if you have proper saftey procedures in place, there should be a tube of Ca-gluconate cream close by so you can apply it after you wash the exposed area. That will supply a nice source of Ca for any remaining HF. Of course that's just the 'band-aid' you use for the trip to the hospital. As previous posters have mentioned....you're not going to know if it was a lethal exposure until it's too late.

  33. Re:Like, hey dude! You got one HOT De// by ari_j · · Score: 2, Informative

    IANALY, but you are on an interesting track. Products liability law in many jurisdictions in the US imposes liability if the plaintiff can show, among other things, that there was a reasonable alternative design. That is, a design that would have prevented the injury could have been built at the time that the original product was built and still been reasonable, so far as its utility and cost go.

    So, if someone does get injured by an exploding laptop and can show that a harder case would have been a reasonable price to pay for the added safety, he can probably sue and recover for his crotchal injuries.

  34. Re:Data Recover by pimpimpim · · Score: 2, Interesting

    I once bought a laptop that was advertised at the chemistry faculty of the uni, where I found out after buying that the owner actually passed away after an accident like this happened. The guy apparently didn't wear a labcoat, or stuff got into his pullover through his labcoat, his story was soon over after that :(

    --
    molmod.com - computing tips from a molecular modeling