Choppy Video w/Quicktime Hardware Acceleration Unchecked

In every other application (PowerDVD, WinDVD. TMPG DVD Author, etc.) videos play smoothly without enabling hardware acceleration. In iTunes (7.6.1.9), I must enable the hardware acceleration checkbox in Quicktime to allow smooth playback, However, this compromises video quality. The gamma curve seems messed up, black levels are too high and music videos have a general "washed out" appearance. Playing the same video in Quicktime itself is perfectly smooth with hardware acceleration unchecked and the video quality looks great. Since iTunes uses the Quicktime engine, I do not understand why this is happening?
I've put in a support request to Apple but no resolution, just the usual suggestions to download the latest nVidia drivers (done), uninstall/reinstall (done), etc. Same results on fast Ultra320 SCSI drive or Serial ATA drive.

I would try rolling back to an older version of flash. I think some if the recent releases of flash have been ultra buggy. I have quite a powerful laptop cpu/gpu and recent versions of flash are a bit choppy for me too. This forum has had a huge increase in posters with problems. Video should pose no problem for a computer even if it is a few years old.

Similar Messages

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    In addition, detailed information about your OS and the browser version would be helpful in attempting to reproduce it on our end.
    Thanks!

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    1. right click on desktop>properites>
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  • Hardware acceleration doesn't work anymore since version 10.2.153.1

    Hi all,
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    Browser: Firefox 4 and IE 8 (tested on both)
    Graphic card: GF 8600GT
    Drivers: Nvidia 266.58
    Flash version: 10.2.153.1
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    Hi,
    I suspect what's happening here is that YouTube recently made changes on their side that disabled StageVideo under certain conditions.  This change has been most prominent on Windows, but as you noted it sometimes works during full screen playback.  We've been actively investigating the issues reported in the forum (both here and on youtube's.)  We're trying to find reproducable cases where the video playback is black/white yet the audio still works, corrupted video, or other issues with hardware acceleration enabled.  If you'd like, we'd love to get your feedback on a few tests:
    Testing Steps:
    1. Verify that the Flash setting "Enable hardware acceleration" is checked.  For instructions on finding this setting, please see step 1 of our Troubleshoot video playback issues document. Ignore the instructions to uncheck this setting, we want hardware acceleration to be enabled for the first pass (make sure “Enable hardware acceleration” is selected/checked.”)
    2. Navigate to: http://www.youtube.com/embed/tgbNymZ7vqY?wmode=direct
    Does the video playback correctly with…
    Hardware Acceleration Enabled (Yes/No):
    Hardware Acceleration Disabled* (Yes/No):
    3. Navigate to: http://labs.adobe.com/technologies/flashplayer10/live-player/
    Note: I have seen buffering/bandwidth issues with this video, what we're looking for here are display issues (black screen, corrupted video, etc.)
    Does the video playback correctly with…
    Hardware Acceleration Enabled (Yes/No):
    Hardware Acceleration Disabled* (Yes/No):
    *If you encounter problems with either of these two videos, please disable hardware acceleration from step 1 (uncheck “Enable hardware acceleration”) and try again.
    Thanks,
    Chris

  • I use https and youtube videos show "an error occured, try again", i try clearing the cache and cokies, i try uncheck the hardware acceleration but no result

    also i try set the security.ssl.allow to true but no result.
    everything right with IE but problem only with firefox :(
    please help me

    Hi,
    Does this happen in Safe Mode or with extensions/plugins disabled? [[Troubleshoot Firefox issues using Safe Mode]]
    [Try the add on HTTPS Everywhere and disable youtube.com in the HTTPS Everywhere rules and I can watch YouTube videos in this Firefox profile as long as it's not over SSL]
    In youtube you can also try to change the video quality or disable hardware acceleration.
    Some problems with Flash video playback can be resolved by disabling hardware acceleration in your Flash Player settings. (See [[Flash Plugin - Keep it up to date and troubleshoot problems|this article]] for more information on using the Flash plugin in Firefox).
    To disable hardware acceleration in Flash Player:
    #Go to this [http://helpx.adobe.com/flash-player/kb/video-playback-issues.html#main_Solve_video_playback_issues Adobe Flash Player Help page].
    #Right-click on the Flash Player logo on that page.
    #Click on '''Settings''' in the context menu. The Adobe Flash Player Settings screen will open.
    # Click on the icon at the bottom-left of the Adobe Flash Player Settings window to open the Display panel. <br/> <br/>[[Image:fpSettings1.PNG]] <br/>
    # Remove the check mark from '''Enable hardware acceleration'''.
    # Click '''Close''' to close the Adobe Flash Player Settings Window.
    # Restart Firefox.
    This [http://www.macromedia.com/support/documentation/en/flashplayer/help/help01.html Flash Player Help - Display Settings page] has more information on Flash Player hardware acceleration, if you're interested.
    Does this solve the problem? Let us know.

  • Hardware Accelerated Video not working in 10.6.7

    Hi,
    I have had a problem with my 17" i7 Macbook Pro for a while now, and have been unable to find any information on it. When attempting to play H.264 videos, I get the following error messages in the Console:
    30/04/2011 15:48:53 /Users/adnium/Desktop/WebKit.app/Contents/Frameworks/10.6/WebKit.framework/WebK itPluginHost.app/Contents/MacOS/WebKitPluginHost[14717] ava error: /SourceCache/AppleVA/AppleVA-4.10.23/Framework/VP3CoreMediaInterface/AVAFVP3Cor eMedia.c: IOAccelFindAccelerator failed for display number 3, error = 3758097084 [entry = 9303, did = 3f003f, service = 0, fbIdx = 0]
    30/04/2011 15:48:53 /Users/adnium/Desktop/WebKit.app/Contents/Frameworks/10.6/WebKit.framework/WebK itPluginHost.app/Contents/MacOS/WebKitPluginHost[14717] ava error: /SourceCache/AppleVA/AppleVA-4.10.23/Framework/VP3CoreMediaInterface/AVAFVP3Cor eMedia.c: IOAccelFindAccelerator failed for display number 3, error = 3758097084 [entry = 9303, did = 3f003f, service = 0, fbIdx = 0]
    30/04/2011 15:48:53 /Users/adnium/Desktop/WebKit.app/Contents/Frameworks/10.6/WebKit.framework/WebK itPluginHost.app/Contents/MacOS/WebKitPluginHost[14717] ava error: /SourceCache/AppleVA/AppleVA-4.10.23/Framework/VP3CoreMediaInterface/AVAFVP3Cor eMedia.c: IOAccelFindAccelerator failed for display number 3, error = 3758097084 [entry = 9303, did = 3f003f, service = 0, fbIdx = 0]
    I should point out that this error appears any time I use an application which uses hardware accelerated video, including Quicktime X, Safari/Webkit, etc. I have searched around for solutions to this problem, but haven't been able to find anything.
    Using internal/external display makes no difference either.
    So far, I have tried re-installing 10.6.7 using the Combined Updater; repairing disk permissions; using various different browsers; uninstalling Perian; and waving a stick over the Mac. None seem to have solved this issue, and I'm beginning to suspect this is a hardware problem.
    Does anyone know how I can fix this without sending it in to Apple?
    Thanks for your help.

    Adnium wrote:
    Hi,
    I have had a problem with my 17" i7 Macbook Pro for a while now, and have been unable to find any information on it. When attempting to play H.264 videos, I get the following error messages in the Console:
    <snip>
     I should point out that this error appears any time I use an application which uses hardware accelerated video, including Quicktime X, Safari/Webkit, etc. I have searched around for solutions to this problem, but haven't been able to find anything. 
    Using internal/external display makes no difference either.
    So far, I have tried re-installing 10.6.7 using the Combined Updater; repairing disk permissions; using various different browsers; uninstalling Perian; and waving a stick over the Mac. None seem to have solved this issue, and I'm beginning to suspect this is a hardware problem.
    Does anyone know how I can fix this without sending it in to Apple?
    Thanks for your help.
    Ah yes, when you waved the stick over the Mac, you didn't tap three times on the monitor!
    Ok, kidding aside, you did backup your data right? Should do so because the next step is likely a bit risky.
    So you did reinstall OS X fresh, from the installer disks and then updated? Same problem? Right? ok.
    Have you turned off integrated graphics in the Energy savings panel yet? this forces the use of hardware graphics.
    Does it only occur in Safari, iTunes and Chrome?, cause all these are based upon the *cough* (insecure) webkit foundation. Perhaps Apple had to turn off somethings, perhaps that's reporting the errors.
    Alas, if your using Firefox are you having any issues?

  • Garbled playback and can't uncheck hardware acceleration

    I have the latest version of flash player on a macbook with mountain lion. i have garbled, green video playback, and after searching the web for about an hour it looks like it has something to do with hardware acceleration being turned on. when I right clicked on flash videos as well as the flash logo for some howto pages dealing with this bug, a dialogue pops up, but that dialogue is useless because it is totally unresponsive to clicks. Therefore, I can't change anything, including unchecking hardware acceleration.
    How do I disable hardware acceleration given that this dialogue is totally unresponsive to mouse clicks, and when I try to use tab and space or enter to uncheck the checkbox for hardware acceleration, the checkbox stays selected? Better yet, how do I make it so that flash videos actually work?

    Is this a Macbook with a retina display?  If so, please install our beta 2 release on labs and make sure to select the  "Allow Adobe to install updates (recommended)" option at the end of the installer.  Give it a few hours and you should get an automatic update that will hopefully fix the issue of the hardware acceleration dialog being unclickable.  I'd also like to know if this addresses the green screen issue you are getting.
    Thanks,
    Chris

  • No Hardware Accelerated Video without monochromatic flickering

    I have an ATI Radeon 5700, using fglrx/catalyst driver (weird crashes with FOSS driver, libva problems).
    In both Boxee and XBMC, iI set the hardware accelration option to auto-detect and it settles on VDPAU/VAAPI.
    Videos play, however all videos (not just HD) appear in a flickering monochrome.  If I set it to Basic Rendering, videos play fine, except for HD video which now stutter.
    VLC can play the same videos without any problems.
    So what should I do? Is there an amdcc setting I can manipulate to help with this, or do I just have to wait for for either media center to update their shiznit? I mean boxee barely works in arch (not without an insane amount of tweaking) but I'm fairly surprised XBMC gives me the same nonsense. 
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    Last edited by yochaigal (2011-04-05 05:21:03)

    Adnium wrote:
    Hi,
    I have had a problem with my 17" i7 Macbook Pro for a while now, and have been unable to find any information on it. When attempting to play H.264 videos, I get the following error messages in the Console:
    <snip>
     I should point out that this error appears any time I use an application which uses hardware accelerated video, including Quicktime X, Safari/Webkit, etc. I have searched around for solutions to this problem, but haven't been able to find anything. 
    Using internal/external display makes no difference either.
    So far, I have tried re-installing 10.6.7 using the Combined Updater; repairing disk permissions; using various different browsers; uninstalling Perian; and waving a stick over the Mac. None seem to have solved this issue, and I'm beginning to suspect this is a hardware problem.
    Does anyone know how I can fix this without sending it in to Apple?
    Thanks for your help.
    Ah yes, when you waved the stick over the Mac, you didn't tap three times on the monitor!
    Ok, kidding aside, you did backup your data right? Should do so because the next step is likely a bit risky.
    So you did reinstall OS X fresh, from the installer disks and then updated? Same problem? Right? ok.
    Have you turned off integrated graphics in the Energy savings panel yet? this forces the use of hardware graphics.
    Does it only occur in Safari, iTunes and Chrome?, cause all these are based upon the *cough* (insecure) webkit foundation. Perhaps Apple had to turn off somethings, perhaps that's reporting the errors.
    Alas, if your using Firefox are you having any issues?

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