rubenlx
Level 1 (0 points)

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

Close
rubenlx

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

  • All replies
  • Helpful answers

first Previous Page 21 of 135 last Next

  • by PIGIO84,

    PIGIO84 PIGIO84 Jul 28, 2011 12:40 AM in response to rubenlx
    Level 1 (0 points)
    Jul 28, 2011 12:40 AM in response to rubenlx

    My iMac 2011 on 3 occasions went into freeze while I was watching a video, twice youtube (flash) and once with quicktime (MP4).

    At all times the mouse is free to move but can not act on commands. Required forced shutdown with the button.

  • by Chippystick,

    Chippystick Chippystick Jul 28, 2011 12:56 AM in response to PIGIO84
    Level 1 (0 points)
    Jul 28, 2011 12:56 AM in response to PIGIO84

    This is happening on my 2008 mbp and my new imac. Both freeze when I try watching vimeo or youtube. Shame on me for installing Lion.

  • by stefdefrejus,

    stefdefrejus stefdefrejus Jul 28, 2011 1:28 AM in response to rubenlx
    Level 1 (0 points)
    Jul 28, 2011 1:28 AM in response to rubenlx

    So, I made some tests and Flash can't be the problem.

     

    What I did ;

    1. I've uninstalled Flash from my SL partition, with the Adobe official Uninstaller.

    2. I've redownloaded Lion from the Mac App Store, and reinstalled it

    3. I did Software Updates (iTunes 10.4 especially)

    4. I've installed Youtube5 Safari extension, which forces HTML5 player on Youtube

     

    I tried to watch videos from Youtube, iTunes, QT... and no problem. So I forced the iMac to sleep, and wake up, I lauched a video on iTunes (video from the last WWDC keynote, downloaded from iTunes Store) .... and freeeeze.

    The mouse moves but I can't do anything except hard reboot.

     

    So, it's not Adobe fault this time... Apple do the job please.

  • by Marcelleke,

    Marcelleke Marcelleke Jul 28, 2011 2:00 AM in response to stefdefrejus
    Level 1 (5 points)
    Jul 28, 2011 2:00 AM in response to stefdefrejus

    Okay,

     

     

    As i can see more then 300 users have responded with the exact same issues.

     

    I contacted these newsblogs:

     

    Engadget.com, Gizmodo.com, 9to5mac.com.

    for those who does not know these blogs, these are the blogs who unveiled as first the iphone 4 in 2010 and have helpt reporting issues to the world to put apple under presure.  PS: they have now leaked detailles of the iPhone 5

     

    I hope they'll get intoo the news so apple will respond quicker for an update.

  • by kirkmc,

    kirkmc kirkmc Jul 28, 2011 3:18 AM in response to rubenlx
    Level 1 (44 points)
    iPhone
    Jul 28, 2011 3:18 AM in response to rubenlx

    Cnet has an article about a similar problem affecting MacBook Pros:

     

    http://reviews.cnet.com/8301-13727_7-20083947-263/some-lion-users-plagued-by-bla ck-screen-bug/

     

    It seems that this is likely also a video driver problem, and that sleep has an effect. But it's not limited to playing videos.

  • by ellishu,

    ellishu ellishu Jul 28, 2011 4:24 AM in response to rubenlx
    Level 1 (0 points)
    Jul 28, 2011 4:24 AM in response to rubenlx

    I have the same issue.  We just bought a new iMac 27 with no problems, then installed OSX Lion a few days later and every time I try to open a video (itunes, youtube) the computer just freezes up.  I hope an update fixes this problem.

  • by Celshader,

    Celshader Celshader Jul 28, 2011 5:42 AM in response to Marcelleke
    Level 1 (0 points)
    Jul 28, 2011 5:42 AM in response to Marcelleke

    I've been sending this in to lots of blogs for a few days now... So far very few, have picked it up.

  • by rihurla,

    rihurla rihurla Jul 28, 2011 5:51 AM in response to rubenlx
    Level 1 (0 points)
    Jul 28, 2011 5:51 AM in response to rubenlx

    I've got the same problem... i just bought a 27' iMac and it was working perfect with Leopard since i updated to Lion i have this problem ... Annoying Freeze on youtube....

  • by rihurla,

    rihurla rihurla Jul 28, 2011 5:55 AM in response to Tumalc
    Level 1 (0 points)
    Jul 28, 2011 5:55 AM in response to Tumalc

    Chrome won't work !!

  • by Ben Furuta,

    Ben Furuta Ben Furuta Jul 28, 2011 6:31 AM in response to rubenlx
    Level 4 (1,170 points)
    Jul 28, 2011 6:31 AM in response to rubenlx

    Check out the article by T Kessler at   

     

    reviews.cnet.com/macfixit/?tag=mfiredir 

     

    where he outlines a similar problem possibly linked to the graphics card. He writes extensively on the Mac system and this article may give some insight into the graphics problems you are experiencing.

  • by spacecadetG5,

    spacecadetG5 spacecadetG5 Jul 28, 2011 6:33 AM in response to rubenlx
    Level 1 (5 points)
    Jul 28, 2011 6:33 AM in response to rubenlx

    Well I did speak too soon. The solution above doesn't work. Still experiencing crashes after sleep. Pretty poor effort on Apple's part to have such a serious system wide freeze doing such a common task. Is there any hope for a fix soon?

  • by Speedy974,

    Speedy974 Speedy974 Jul 28, 2011 8:35 AM in response to rubenlx
    Level 1 (0 points)
    Jul 28, 2011 8:35 AM in response to rubenlx

    I am back to square 1... I pretty much stayed up all night to try to go back to snow leopard, it's just been a major nightmare, so here I am back with lion. Fresh install this time and guess what: I still have the same exact issue.

  • by Samplex,

    Samplex Samplex Jul 28, 2011 8:42 AM in response to rubenlx
    Level 1 (23 points)
    Mac OS X
    Jul 28, 2011 8:42 AM in response to rubenlx

    What if you disable the "Automatic Graphic switching" option under System Prefernces > Energy Saver?

     

    Does it still freeze the machine?

  • by jean raymond,

    jean raymond jean raymond Jul 28, 2011 9:04 AM in response to rubenlx
    Level 1 (0 points)
    Jul 28, 2011 9:04 AM in response to rubenlx

    I have the same problem.

     

    Got a brand new 27 inch whit ssd and added graphics memory. (after a 2 month waitting period:( )

     

    Installed snow leopard and it frozze a couple a times

    Uppgraded to lion and it has frozzen a couple of times

     

    called support and they told me to do a hardware test

     

    No errors loged

    results of the hardware test no fault found

     

     

    So what to do go to a service point ??

    i dont think so its a 9 hours drive who would pay me my gas money for that apple ??

     

    I have a 24 inch imac as well and installed lion on that one *** well and no problems.

     

    just saw that you cant wright *** well itt gets blured strange azz well might work

  • by franmanster,

    franmanster franmanster Jul 28, 2011 9:20 AM in response to jean raymond
    Level 1 (0 points)
    Jul 28, 2011 9:20 AM in response to jean raymond

    I upgraded to the Lion 10.7.2 avaliable in the developers section and it fixed this problem.  I have been running for close to a week with NO freezing.  It happened at least 3-4 times a day until the upgrade.  I'm 100% sure that my problem is fixed, and yours will be too, on the next software upgrade.

     

    If your starting to loose your mind (like I was), then do a little googling and see if you can find 10.7.2 avalibale for download.

first Previous Page 21 of 135 last Next