rubenlx

Q: OSX Lion + 2011 iMac 27'' + Video = Freeze

Hello.

 

Got a brand new 27'' iMac, installed Lion. The machine freezes randomly when starting to play videos, either on Youtube, Quicktime, iTunes.

 

When it freezes, the mouse still works, but the machine doesn't respond to any command, requiring me to hit the power button and restart the computer.

 

Searched on kernel.log and system.log, and found no crash/error/message.

 

Anyone suffering from the same problem? The machine is pretty solid, been running some OpenCL kernels too and they are ok. It's only video decoding (possible on the GPU) that seems to freeze randomly.

iMac, Mac OS X (10.7)

Posted on Jul 21, 2011 6:46 AM

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Q: OSX Lion + 2011 iMac 27'' + Video = Freeze

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  • by sycren,

    sycren sycren Aug 1, 2011 3:19 AM in response to cleverson from são paulo
    Level 1 (0 points)
    Aug 1, 2011 3:19 AM in response to cleverson from são paulo

    Mine was having all the same problems, but since I got rid of all the login items (System preferences > accounts > login items) I havent had a crash so see if that helps.

  • by hellin,

    hellin hellin Aug 1, 2011 3:26 AM in response to sycren
    Level 1 (0 points)
    Aug 1, 2011 3:26 AM in response to sycren

    It seems the problem is a bug in the firmeware the graph, the rarest of allthis is that since Apple does not release a patch for all these. APPLE ARE SLEEPING.

  • by hellin,

    hellin hellin Aug 1, 2011 3:27 AM in response to hellin
    Level 1 (0 points)
    Aug 1, 2011 3:27 AM in response to hellin

    It seems the problem is a bug in the firmeware the graph, the rarest of allthis is that since Apple does not release a patch for all these. APPLE ARESLEEPING.

    APPLE ARESLEEPING

    APPLE ARESLEEPING

    APPLE ARESLEEPING

    APPLE ARESLEEPING

    APPLE ARESLEEPING

    APPLE ARESLEEPING

    APPLE ARESLEEPING





     

     



  • by hellin,

    hellin hellin Aug 1, 2011 3:29 AM in response to hellin
    Level 1 (0 points)
    Aug 1, 2011 3:29 AM in response to hellin

    APPLE WAKE UP.

    APPLE WAKE UP.

    APPLE WAKE UP.

    APPLE WAKE UP.

    APPLE WAKE UP.

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    APPLE WAKE UP.

    APPLE WAKE UP.

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    APPLE WAKE UP.

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    APPLE WAKE UP.

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    APPLE WAKE UP.

    APPLE WAKE UP.

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    APPLE WAKE UP.

    APPLE WAKE UP.

    APPLE WAKE UP.

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    APPLE WAKE UP.

    APPLE WAKE UP.

    APPLE WAKE UP.

    APPLE WAKE UP.

    APPLE WAKE UP.

    APPLE WAKE UP.

    APPLE WAKE UP.VV

  • by kirkmc,

    kirkmc kirkmc Aug 1, 2011 3:29 AM in response to hellin
    Level 1 (44 points)
    iPhone
    Aug 1, 2011 3:29 AM in response to hellin

    I'm not giving Apple a bye, but they're not sleeping. I've been working with an Apple engineer for the past week trying to narrow down the cause of this. While they will not - and never do - come out and say anything about this publically until they find a fix, you can be reassured that they are looking for one.

  • by MR DOS,

    MR DOS MR DOS Aug 1, 2011 3:41 AM in response to cleverson from são paulo
    Level 1 (5 points)
    Aug 1, 2011 3:41 AM in response to cleverson from são paulo

    I have a 21.5" iMac bought in June. Clean install of SL followed by Lion and I have the same locking up issue. I have only been a Mac user a few weeks and have been every enthusiastic about the Mac ... until this issue. I've been using Windows based computers professionally and personally everyday for more years that I care to remember and I can't honestly remember the last time I had a "blue screen of death" or even worse, a complete system freeze with no feedback as to what went wrong !

     

    This is a really monumental screw-up on Apple's part. It's very frustrating because :

    1. This problem is happening on their brand new line of computers. It's not like it's being reported on 4/5 year old models.

    2. This problem happens with clean upgrades from SL to Lion. It doesn't need some esoteric 3rd party piece of software to make the computer lock up.

    3. This is a very easy problem to reproduce (i.e. from sleep). How could someone in Apple's QA not have spotted this, you don't exactly have to look very hard to find it. Apple employee's might never sleep but surely their computers do ?

    4. The problem seems to be with Apples own offically sanctioned hardware/software i.e. the graphics card/driver. This is not some superflous external piece of hardware that 1% of the Mac population might be using. If my external NAS drive suddenly stopped working I could understand that, but a display driver bug locking up the entire system?

    5. This is not some weird, highly unlikely corner-case of a typical user. This is a user watching video. How much more common a use-case can you possibly imagine ?

    6. There has been radio silence on Apple's part. The only thing worse than a problem like this from a customers point of view is for the problem not to be acknowledged. Sure Apple may want to wait some time before conifrming the problem until they hear enough to be convinced there is an issue, but how many more people really need to get on these forums and report this issue before it's acknowledged ?

    7. "It just works". Ah, no it doesn't.

     

    I can only imagine what the reaction would be if this happened with an M$ OS release (which supports way more graphics cards/drivers than Mac!)

     

    I've only had my Mac a few weeks and have been enjoying it immensely up until Lion. But for the 2nd biggest company on the planet (2nd only to Exxon Mobile) to screw up like this (and not acknowledge it) is very disappointing. I've been banging on about how great Macs are to my work colleagues/friends for weeks and then they heard about this. I've been eating my words since ...

  • by Celshader,

    Celshader Celshader Aug 1, 2011 3:47 AM in response to kirkmc
    Level 1 (0 points)
    Aug 1, 2011 3:47 AM in response to kirkmc

    I would have thought at this point they know exactly what is causing the problem, but are too pig-headed to make a release ahead of their schedule, or are waiting to implement it in the next release.

     

    If your telling me they are still trying to figure out what is causing the problem then I really have lost a lot the little faith I had left in Apple.

  • by kirkmc,

    kirkmc kirkmc Aug 1, 2011 3:57 AM in response to Celshader
    Level 1 (44 points)
    iPhone
    Aug 1, 2011 3:57 AM in response to Celshader

    As far as I can tell, they don't yet have an answer. I've had a couple of e-mails today from the engineer who I've been working with. FWIW, I'm in France, and I'm in touch with people in Apple's European support center in Cork, Ireland. They then probably go back to engineers in Cupertino with the information they get. I'm guessing that there are people in a number of countries collecting information, so it's to be hoped that a solution is found soon.


    I do agree that they should have spotted this in their testing. I'm leaning more toward a hardware problem with a specific series of Macs. If it were a software problem, it's more likely that it would have been discovered. Since these are very recent Macs, perhaps the problem wasn't noticed. If it is a hardware problem, it might be fixable via a software update, especially since everything worked fine under Snow.

  • by fringant,

    fringant fringant Aug 1, 2011 4:26 AM in response to rubenlx
    Level 1 (0 points)
    Aug 1, 2011 4:26 AM in response to rubenlx

    The same here...

     

    iMac 27' is three days old... after returning the first iMac with a defecting fan this is just embarrassing.

  • by hellin,

    hellin hellin Aug 1, 2011 4:55 AM in response to fringant
    Level 1 (0 points)
    Aug 1, 2011 4:55 AM in response to fringant

    And because it is not for this forum, someone from Apple to tell us what is happening, or give us a solution. I was not expecting this from apple. I'm about to return my new imac.

  • by Stephen Finlay,

    Stephen Finlay Stephen Finlay Aug 1, 2011 4:58 AM in response to kirkmc
    Level 1 (54 points)
    Photos for Mac
    Aug 1, 2011 4:58 AM in response to kirkmc

    Good to hear that they are aware of the problem and are working on a fix. Basically, that's all I need to know at the moment. Just didn't want to think that such a serious issue for so many new iMac owners would be forgotten.

     

    For the time being, I'm getting by with having my energy saving settings set to never have the computer sleep. ( Display and disk can still power down though )

  • by hellin,

    hellin hellin Aug 1, 2011 5:04 AM in response to rubenlx
    Level 1 (0 points)
    Aug 1, 2011 5:04 AM in response to rubenlx

    What happen APPLE.

  • by hellin,

    hellin hellin Aug 1, 2011 5:08 AM in response to rubenlx
    Level 1 (0 points)
    Aug 1, 2011 5:08 AM in response to rubenlx

    We need a solution, you imagine you're working with something important and you suddenly freezes the screen? This is not acceptable. This is a serious error and apple should fix now. People have spent almost 2000 dollars on an iMac and now it does not work, this is a shame and at least we could say that's what happens and when it will solve.

  • by softwater,

    softwater softwater Aug 1, 2011 5:13 AM in response to kelliefrombeaverton
    Level 5 (5,392 points)
    Mac OS X
    Aug 1, 2011 5:13 AM in response to kelliefrombeaverton
    I can't even click on the Apple to force quit...

     

     

    Probably somoene has said this already, but I can't read through 30 pages to find out....

     

    use 'OPTION + COMMAND + ESC' to get the Force Quit menu when you can't use the mouse pointer.

  • by Josh.MOX,

    Josh.MOX Josh.MOX Aug 1, 2011 5:15 AM in response to rubenlx
    Level 1 (0 points)
    Aug 1, 2011 5:15 AM in response to rubenlx

    Try to turn off the Option 'Automatic Graphics Switching'(It sounds like this) in energy saver.It works in my mac book pro

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