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

Close

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

  • All replies
  • Helpful answers

first Previous Page 105 of 135 last Next
  • by 2rodee,

    2rodee 2rodee Feb 2, 2012 3:06 PM in response to jmarchalonis
    Level 1 (15 points)
    Feb 2, 2012 3:06 PM in response to jmarchalonis

    Looks like I have to have SL installed in order to get the Mac Store.. 

     

    I looked at iTunes/Apps and it isn't there..  but there may be something similar.   I'll have a look around.  Seems I had something that recorded temperatures before (..maybe on dashboard..?)   If you think of something else - just let me know.. 

     

    I agree with you on the RAM..  just trying anything. 

  • by jmarchalonis,

    jmarchalonis jmarchalonis Feb 2, 2012 3:26 PM in response to 2rodee
    Level 1 (0 points)
    Feb 2, 2012 3:26 PM in response to 2rodee

    Try iStat, it has since became a paid application, but it did have a freware dashboad widget.... actually, here is a link below... It should be able to tell you temps and fan speeds, in addition to the others.

     

    link: http://www.apple.com/downloads/dashboard/status/istatpro.html

  • by Jesse Smith1,

    Jesse Smith1 Jesse Smith1 Feb 2, 2012 3:38 PM in response to rubenlx
    Level 1 (29 points)
    Feb 2, 2012 3:38 PM in response to rubenlx

    There's an upgrade. 10.7.3 is out.

  • by jmarchalonis,

    jmarchalonis jmarchalonis Feb 2, 2012 3:41 PM in response to Jesse Smith1
    Level 1 (0 points)
    Feb 2, 2012 3:41 PM in response to Jesse Smith1

    @Jesse it doesn't fix the issues and it causes even more issues... read about it on macrumors... http://www.tuaw.com/2012/02/02/os-x-10-7-3-causing-cui-errors-for-some-combo-upd ate-recommende/

  • by 2rodee,

    2rodee 2rodee Feb 2, 2012 4:04 PM in response to jmarchalonis
    Level 1 (15 points)
    Feb 2, 2012 4:04 PM in response to jmarchalonis

    @jmarch - That's the one I had!  OK - here are the readings:

     

    HD                              51

    CPU                           50

    AIRPORT CARD        71

    AMBIENT                   26

    GPU                           56

    GPU DIODE              59

    GPU HEATSINK        56

    HD BAY                      51

     

    CPU FAN     1198 RPM

    HD                1198 RTM

    OPTICAL        998 RPM

     

    This is running Leopard on my 2008 iMac

    Hardware Overview:

     

      Model Name:    iMac

      Model Identifier:    iMac7,1

      Processor Name:    Intel Core 2 Duo

      Processor Speed:    2 GHz

      Number Of Processors:    1

      Total Number Of Cores:    2

      L2 Cache:    4 MB

      Memory:    4 GB

      Bus Speed:    800 MHz

      Boot ROM Version:    IM71.007A.B03

      SMC Version (system):    1.20f4

     

     

    Be back in an hour or so.. I've got to meet some people for supper, then I'll be back to add the RAM and fire up in cloned Snow Leopard  (just for grins..)

     

    Thank you

  • by Ben Friedman1,

    Ben Friedman1 Ben Friedman1 Feb 2, 2012 4:49 PM in response to Gandalf The Grey
    Level 1 (15 points)
    Feb 2, 2012 4:49 PM in response to Gandalf The Grey

    It sounds like a good Mac especially with i7dual core and the 16GB Ram as well as the SSD drive. It must be very fast!

  • by jmarchalonis,

    jmarchalonis jmarchalonis Feb 2, 2012 5:03 PM in response to 2rodee
    Level 1 (0 points)
    Feb 2, 2012 5:03 PM in response to 2rodee

    @2rodee I wish i had a similar system to do the test on, but i will be using a MacBook Pro Late 2008, 2.53 Intel Core 2 Duo with 4GB Ram, Gefore 9400M 256MB, running Lion 10.7.2. The CPU are similar which is good.

     

    HD                             33

    CPU                           68

    CPU HEATSINK          59

    GPU                           55

    GPU HEATSINK          50

    GPU HEATSINK 2       63

    MEMECONTROLLER   52

    NORTHBRIDGE           61

     

    RIGHT FAN        2000RPM

    LEFT FAN          2000RPM

     

    ----------

     

    Now looking at your tempatures, i would say the Hard Drive is running pretty hot; what are you runing while doing this test? I have like 15 applications open, so mine is not the true values at rest. Also why is the Airport card so hot? 70s seems normal if you are using it to say stream music or search on safari but at rest it should be much lower. Is it being used, or at rest when you took that?... I will wait to see your Snow Lepoard results...

  • by 2rodee,

    2rodee 2rodee Feb 2, 2012 8:14 PM in response to jmarchalonis
    Level 1 (15 points)
    Feb 2, 2012 8:14 PM in response to jmarchalonis

    ok.. I'm on my MB Pro..  Just now rebooting the iMac into Snow Leopard clone.

     

    Downloaded the istat.... took the readings.

                                    WAS               NOW

    HD                              51               40

    CPU                           50                41

    AIRPORT CARD        71                63

    AMBIENT                   26               25

    GPU                           56               48

    GPU DIODE              59                51

    GPU HEATSINK        56                48

    HD BAY                      51               39

     

    Went to the toolbar at bottom to open Applications, they opened and FREEZE!!!  I'll have to reboot with disk warrior.  What a mess..  Only 3 minutes into the dang thing. 

     

    Oh GREAT!  There is already a disk in the drive, I tried the eject button and the curser turned into the infamous beach ball.  Hard reset to see if I can get the cd ejected before a freeze..

  • by jmarchalonis,

    jmarchalonis jmarchalonis Feb 2, 2012 9:02 PM in response to 2rodee
    Level 1 (0 points)
    Feb 2, 2012 9:02 PM in response to 2rodee

    The numbers look promising but the freeze doesn't. When you say freezing, does the cursor still move or is everything frozen? If the cusor moves, it's just finder freezing which is similar to the Lion issue.

     

    Also, did you restore it onto the Macintosh HD or are you running off external? One other thing is, if you installed to Macintosh HD, did you use carbon copy to restore or Disk Utility?

     

    There should be away to get the disc out if slot loaded. I had that issue once and turned the iMac on it's side and it felt out. There should also be a EFI boot command to eject it.

  • by jmarchalonis,

    jmarchalonis jmarchalonis Feb 2, 2012 9:07 PM in response to 2rodee
    Level 1 (0 points)
    Feb 2, 2012 9:07 PM in response to 2rodee

    try holding down either c or option on start and then boot up and hit eject; you should have a problem getting the disc out.

  • by 2rodee,

    2rodee 2rodee Feb 2, 2012 9:33 PM in response to jmarchalonis
    Level 1 (15 points)
    Feb 2, 2012 9:33 PM in response to jmarchalonis

    I did a hard reset (back in to SL) went to Preferences and changed the startup disk and hit "Restart."  Then I was able to get the disk out..  whew!  Didn't need Disk Warrior after all.

     

    The numbers look promising but the freeze doesn't. iMac did have time to cool down while I was adding the RAM.. Wondering if that is why the numbers looked better.


    When you say freezing, does the cursor still move or is everything frozen? Curser moves, but screen unresponsive.  I did notice that when I tried to use the eject button, the curser changed into the spinning beach ball. 

     

    If the cusor moves, it's just finder freezing which is similar to the Lion issue.  Yes, same... but in Snow Leopard

     

    Also, did you restore it onto the Macintosh HD or are you running off external? I used SUPERDUPER or SUPERCLONE (can't remember what it's called..)  and copied SL  to external HD, then erased internal iMac HD and reinstalled Leopard from original install disks

     

    One other thing is, if you installed to Macintosh HD, did you use carbon copy to restore or Disk Utility?   After I wiped the internal HD, I did a clean install from the Leopard intall disks

     

    There should be away to get the disc out if slot loaded. I had that issue once and turned the iMac on it's side and it felt out. There should also be a EFI boot command to eject it. I was able to eject it when I rebooted

     

    SOOOO, I'm back to Leopard 10.5.8... and I forgot to unplug the external Backup...  I am hoping that Leopard isn't copying over the backup... because Leopard is a new copy with next to no data on it.  It's doing something right now.  lol! 

  • by jmarchalonis,

    jmarchalonis jmarchalonis Feb 2, 2012 10:10 PM in response to 2rodee
    Level 1 (0 points)
    Feb 2, 2012 10:10 PM in response to 2rodee

    You are probaly correct in saying that the numbers improved as the system was off for some time. Under SL, go into about Mac and extended information. Once in there, go to software, tell me if 64bit is set to yes or no; it should be no by default. It needs to be changed to 64bit and should fix application freezes; just a thought but, it might not be related to this. Open terminal; type sudo systemsetup -setkernelbootarchitecture x86_64 and reset. Let me know what happens. Also using carbon copy and make a bootable SL on external. Hold option on start and choose to boot from the external. I want to know if the issues still exist when booting from external. If issues don't show, boot from install disc and go to disk utility and repair the HD permissions.

  • by joeygillis,

    joeygillis joeygillis Feb 2, 2012 10:19 PM in response to jmarchalonis
    Level 1 (0 points)
    Feb 2, 2012 10:19 PM in response to jmarchalonis

    My 64 bit is set to yes, but I'm not sure it should be since my iMac is from 2007.  Should I change it to no?  (I'm running Lion.... I can give full specs if needed.)

  • by jmarchalonis,

    jmarchalonis jmarchalonis Feb 2, 2012 10:41 PM in response to joeygillis
    Level 1 (0 points)
    Feb 2, 2012 10:41 PM in response to joeygillis

    If it has a core 2 duo, which it should, 64bit is supported but not all aspects are supported like graphics acceleration. Basically, it's a 32bit designed system + chipset but the processor supports 64bit processing. True setting it to 32bit and see if it improves anything after a reboot. Of it doesn't, set it back.

  • by 2rodee,

    2rodee 2rodee Feb 2, 2012 10:53 PM in response to jmarchalonis
    Level 1 (15 points)
    Feb 2, 2012 10:53 PM in response to jmarchalonis

    Under SL, go into about Mac and extended information. Once in there, go to software, tell me if 64bit is set to yes or no; it should be no by default.  It needs to be changed to 64bit and should fix application freezes; just a thought but, it might not be related to this. IT SAYS "NO"  

     

    Open terminal; type sudo systemsetup -setkernelbootarchitecture x86_64 and reset. Let me know what happens.  I can't get to disk utility because "curser moves, screen frozen" when I tried to open the application folder to get to utilities.  Is this something that can be done thru Disk Warrior?  It's a bootable CD that I've used it to verify and repair permissions. 

     

    Also using carbon copy and make a bootable SL on external. Hold option on start and choose to boot from the external. I want to know if the issues still exist when booting from external. If issues don't show, boot from install disc and go to disk utility and repair the HD permissions.  My SL is bootable, and is on the external drive. (Made with SuperDuper) 

     

    Thank you so much for your help!!  I've got to call it quits for tonite.  My eyes feel like there is sand in them.  LOL!

     


first Previous Page 105 of 135 last Next