Q: OSX Lion + 2011 iMac 27'' + Video = Freeze
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Aug 16, 2011 5:54 AMby pipqueak,"In summary - my 27" 2011 iMac would freeze when attempting to play video (either streamed via youtube or Hulu or something or even just an .mp4 with Quicktime). My mouse pointer would still work, but no response and I would have to do a hard reboot.
THE FIX:
Go to Finder -> Macintosh HD -> Library -> Quicktime.
In that folder I originally had two components:
Perian.component
AC3MovieImport.component
Essentially I removed the AC3MovieImport.component, and left the Perian.component. Reboot. (If you don't want to outright delete it - and I don't blame you - just copy it to the desktop for safe keeping)"
I went to the directory as you outlined, but I didn't have those files. Instead, I have:
AppleIntermediateCodec.component
AppleMPEG2Codec.component
Do you know if doing away with either of these will help? Any help is appreciated!
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Aug 16, 2011 9:12 AMby raphaeladidas,pipqueak wrote:
"In summary - my 27" 2011 iMac would freeze when attempting to play video (either streamed via youtube or Hulu or something or even just an .mp4 with Quicktime). My mouse pointer would still work, but no response and I would have to do a hard reboot.
THE FIX:
Go to Finder -> Macintosh HD -> Library -> Quicktime.
In that folder I originally had two components:
Perian.component
AC3MovieImport.component
Essentially I removed the AC3MovieImport.component, and left the Perian.component. Reboot. (If you don't want to outright delete it - and I don't blame you - just copy it to the desktop for safe keeping)"
I went to the directory as you outlined, but I didn't have those files. Instead, I have:
AppleIntermediateCodec.component
AppleMPEG2Codec.component
Do you know if doing away with either of these will help? Any help is appreciated!
Look in Home folder/Library/Quicktime instead.
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Aug 16, 2011 9:26 AMby raphaeladidas,raphaeladidas wrote:
socaleyedoc wrote:
THE FIX:
Go to Finder -> Macintosh HD -> Library -> Quicktime.
In that folder I originally had two components:
Perian.component
AC3MovieImport.component
Essentially I removed the AC3MovieImport.component, and left the Perian.component. Reboot. (If you don't want to outright delete it - and I don't blame you - just copy it to the desktop for safe keeping)
The short explaination is that both components do the same thing (Perian is apparently more comprehensive) but they try to do the same function and create issues
Even after sleep mode, I have had no issues whatsoever.
~socaleyedoc
This worked for me. Not a single problem since removing AC3MovieImport.component.
But it seems unlikely that EVERYONE having this problem has Perian installed, so I'd guess it's a problem with just AC3MovieImport.
Except I believe it's Perian that installs the AC3MovieImport component. It seems odd that I've removed this component and don't have a problem but there must be many non-Perian users on here who still do.
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Aug 16, 2011 10:31 AMby Steve Self,While I appreciate the commitment to help everyone, many of us do not have either of those files installed anywhere in our OS and still have the freezing issue. So while those files may contribute to some people's issue, the deletion of them does not help many others.
In our case the best solution is to set the computer to NEVER SLEEP. Then after a restart there is no more freezing. I do get some video pixel artifacts in long Finder lists after working for hours... but these seem transient and I hope clear up with the fix Apple is working on.
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Aug 16, 2011 11:15 AMby raphaeladidas,Steve Self wrote:
While I appreciate the commitment to help everyone, many of us do not have either of those files installed anywhere in our OS and still have the freezing issue. So while those files may contribute to some people's issue, the deletion of them does not help many others.
One train of logic might suggest that the solution to the problem would be to install Perian, making sure there is no AC3MovieImport.component.
Actually, I think I'm going to uninstall Perian and see if the problem returns.
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Aug 16, 2011 11:32 AMby jdsilja,Having the same problem Imac 27 i7 ssd 2tb fully loaded. Paid about 3000 dollars for the computer i always wanted and it locks up. It only locks up in safari when watching videos qucktime or flash. it locks up about 50% of the time. have to hold the power button. Help anyone!!!!!!!!!!!!!!
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Aug 16, 2011 12:09 PMby putnik,Try the Graphics firmware update available at the Apple Support website: For iMac Graphic FW version 2.0 came out on June 2th so check your computer has been updated.
http://www.apple.com/uk/support/imac/intel/
Third party software is still evolving for Lion and versions you have installed may well be out-of-date. In particular Adobe Flash has recently come out of beta. Other programs you definitely need to update include Java, Perian, Flip4Mac and your printer drivers.
Any maintenance programs you use are important because old versions may damage things. Apptrap, OnyX etc should be priority updates.
Repairing permissions is always a good idea after a major installation too. I use the automation script in OnyX because it clears caches and refreshs the dyld cache. These can harbour old data sometimes.
Have I forgotten anything?
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Aug 16, 2011 12:14 PMby raphaeladidas,raphaeladidas wrote:
Steve Self wrote:
While I appreciate the commitment to help everyone, many of us do not have either of those files installed anywhere in our OS and still have the freezing issue. So while those files may contribute to some people's issue, the deletion of them does not help many others.
One train of logic might suggest that the solution to the problem would be to install Perian, making sure there is no AC3MovieImport.component.
Actually, I think I'm going to uninstall Perian and see if the problem returns.
I've uninstalled Perian and reinstalled it, including the AC3MovieImport.component, and under any condition I can't reintroduce the problem.
It's just disappeared for me for no discernable reason, so I'm done theorizing about it.
