Stuttering audio video after 10.8.1 update

Ever since I updated my Mid 2011 27" i7 imac to 10.8.1, the video keeps experiencing terrible stuttering. It affects DVD's, YouTube clips, and fully downloaded movies. I've seen a few other mentions of this on some forums, but nothing from Apple. Does anyone know what's going on?

Open Console in Utilities & see if there are any clues or repeating messages when this happens.

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I am getting a buzz sound on my laptop whenever playing audio/video after 1 min.

i am getting a buzz sound on my laptop whenever playing audio/video after 1 min.

What model laptop is this? Does the issue occur when you use headphones? If you could give me some more details I will be able to give you some more suggestions to resolve the issue.
Thanks,
Sean
-------------How do I give Kudos? | How do I mark a post as Solved? --------------------------------------------------------

I have Audio problems after 6.1.2 update. What do I do?

Is anybody else having audio problems after updating to 6.1.2? How do I Fix it?

No problems here.
First, try a system reset. It cures many ills and it's quick, easy and harmless...
Hold down the on/off switch and the Home button simultaneously until you see the Apple logo. Ignore the "Slide to power off" text if it appears. You will not lose any apps, data, music, movies, settings, etc.
If the Reset doesn't work, try a Restore. Note that it's nowhere near as quick as a Reset. It could take well over an hour! Connect via cable to the computer that you use for sync. From iTunes, select the iPad/iPod and then select the Summary tab. Follow directions for Restore and be sure to say "yes" to the backup. You will be warned that all data (apps, music, movies, etc.) will be erased but, as the Restore finishes, you will be asked if you wish the contents of the backup to be copied to the iPad/iPod. Again, say "yes."
At the end of the basic Restore, you will be asked if you wish to sync the iPad/iPod. As before, say "yes." Note that that sync selection will disappear and the Restore will end if you do not respond within a reasonable time. If that happens, only the apps that are part of the IOS will appear on your device. Corrective action is simple - choose manual "Sync" from the bottom right of iTunes.
If you're unable to do the Restore, go into Recovery Mode per the instructions here.

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Have been using an Edirol UA-1D USB/Digital Audio interface with my Pismo for years. Optical connection for audio out to digital 8 track unit. Crystal clear signal. Painless operation. And NO drivers needed.
Updated from 10.4.5 to .6, and instantly I'm hearing a considerable and disturbing amount of distortion in the audio. It's not volume dependent or overmodulation (comes through even at low input levels). And it comes through iTunes, Reason, LIVE, etc... where it didn't before.
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Any suggestions?
I zapped PRAM, "repaired" permissions, etc. No luck yet.
Would appreciate any insight.
Thanks in advance.
B&W w/G4600 - Pismo Mac OS X (10.4.6)

I have been having similar problems with my (much less fancy) USB speakers, intermittently, since the 10.4.6 update (PowerBook). From another post I made elsewhere:
I have Altec-Lansing XT1 USB speakers. They're connected to the PowerBook via a USB KVM, to an ADC, to the speakers.
For the last week or so (it started soon after 10.4.6 upgrade), an odd temporary sound distortion has been occurring. As the original poster mentioned, it sounds for the life of me as if the speakers are blown.
For anywhere from a few moments (several seconds) or longer, the sound output will become distorted in this way. Then, often of its own accord, things will go back to normal. If I want to get them back to normal more quickly, I can mute and unmute (I use a Logitech keyboard with a mute button, or sometimes I hit the Griffin Powermate which defaults to mute, and occasionally I even hit the sound control on the menu bar). When it's unmuted, it comes back undistorted.
Hence, this phenomenon seems to me to likely be software-related.
I almost always use the PowerBook closed and hooked up to an ACD. Lest you think this is particular to this set up: I have another identical ACD & speakers at the office (indeed, even the same keyboard), with the main difference being the lack of the USB KVM switch being left out. The problem happens there as well.
I welcome any thoughts.
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Doug

Error Message when taking video after OS 4.3 update

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~Ken

For the benefit of others, two other threads I found on this subject:
on iPhone 4g thread: http://discussions.apple.com/thread.jspa?messageID=13235938
on iPhone 3GS thread: http://discussions.apple.com/thread.jspa?messageID=13148918
(SAME PROBLEM IN BOTH POSTS - just two users posted in different forums)

Audio problems after windows 8.1 update

My audio volume has gone to barely audible after I went to 8.1 however only for certain things.
When I try to listen to a vidio clip on Yahoo or other news feeds I can barely hear anything and when I play
free cell or solitare and make a wrong move the audio warning is just barley audible.
However when I listen to a Facebook audio it comes booming in as before the upgrade. and when Malware bites
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I re downloaded the realtec audio driver for 8.1 and have gone through all the settings I know about
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I would go back to the old Windows 8 ( I don't think 8.1 is any better anyway ) but I will loose my
Microsoft office download and some game downloads I have installed and have to re buy them.
Any Help ?
Aloha from Kauai Leon

rckuehl wrote:
Model is Satellite E55-A5114, part number is PSKPJU-01K023.
Not sure when my computer got updated to 8.1, but I started losing audio at some sites around August 2014.
Bob
Hi rckuehl. It may have been caused by installing the Microsoft August 2014 update for Windows 8.1 - KB2975719.
Try uninstalling the KB2975719 to see if the sound problems go away. If not, try installing newer Realtek HD Audio drivers as your E55-A5114 laptop uses Realtek audio drivers; original driver for that model was 6.0.1.7026. The latest Realtek HD Audio driver from Toshiba is version 6.0.1.7329 which was posted 9-25-2014.

Delay Audio Video after 30 min

Hi there, I've a problem with live streaming, after 30 minutes, there is a delay between audio and video.
My setting:
log:
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What model laptop is this? Does the issue occur when you use headphones? If you could give me some more details I will be able to give you some more suggestions to resolve the issue.
Thanks,
Sean
-------------How do I give Kudos? | How do I mark a post as Solved? --------------------------------------------------------

ITunes always stutters/buffers videos after pushing play

ARG! Ok, so my iTunes used to do this before I installed Leopard. It stopped after the installation, but returned about a week or two after the installation. On EVERY video I try to watch in iTunes, the video always plays for about 3 or 4 seconds, then iTunes pinwheels for about 3 or 4 seconds, then resumes playing, but not where it paused, because it didn't pause. It continues playing as it pinwheels and I miss those seconds and have to rewind. It happens every time I pause/play it after that, too. Any ideas? Thanks!

1) Do you think even though the sound issue is not isolated to just iTunes -- but affects everything on my computer -- that it is just a matter of re-installing it?
Sorry , didn't notice you said no sound at all. Did you try a pair of headphones to see if the audio out works?
iTunes must not be working, though, because even if I mute my sound, the pointer does move in the iTunes window. The reinstall will not affect anything else. The data for those items is stored elsewhere on your computer. For example, your song files in your iTunes Music folder, your playlists in iTunes Music Library.xml & iTunes Library. See What are the iTunes library files?.

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Hi everyone,
My Built-in audio is missing!
Under System Profiler, it says "No built-in audio" under the Audio (built in). In System Preferences, (under Sound) no devices are available to select. When I click "Show volume in menu bar" the speaker icon appears, but as soon as I click on it, it disappears.
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I tried CTRL OPT P R, but that didn't work. I looked in my Library -> Preferences and I don't have any sort of com.apple.audio file.
I've been putting off downloading the latest Quicktime update, because everything was working fine. I downloaded the Security Update, thought it would be "safe", restarted, and my audio disappeared. I figured what can be worse, so I updated Quicktime as well along with all the Final Cut Studio 2 updates.
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Thanks,
Erik

Thanks for your troubleshooting tips- I tried to re-install and create an archive so I wouldn't have to wipe the main drive, but there was an error creating an archive and the computer wouldn't do it. I've had the computer since October 2003 and have never had to re-install, so I decided to backup important stuff and just do a clean install.
After installing everything, I have lots of extra space on my drive and the system runs nice and quick once again.
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hmmmm. were those videos that you converted yourself
with QT Pro, alg2? if so, it might be worth checking
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QuickTime Pro: DV format movies may require
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(if the source files were DV PAL, that can produce
the "bars down the side" effect ... unlike NTSC where
you get the "bars along the top" effect shown in the
graphic in the document.)
I did convert them myself but but not with quicktime pro will this solution still apply if were to purchase QT Pro or should i contact the company i bought my programme from.

I have no video after wndows 8.1 updates

How can I install the video drivers, when I cant access my PC via a black screen?

First of all you need to get into safemode
for that press f8 or del key while starting the computer
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Hello sphodromantis,
The article linked below details some useful information and steps that can help get your iSight camera working again.
How to Troubleshoot iSight
http://support.apple.com/kb/HT2090
Cheers,
Allen

No video after OEL 6.2 update

Hello
I just update my machine. It was running great with OEL 6.1. I let it run the updates to take it to OEL 6.2
Now it won't start the Xserver.
The /var/log/Xorg.0.log only has (II) Informational entries, no (EE) error entries
I found the following in /var/log/gdm/:5.log file
do_ioctls: DRM version is 2.0.0 but this driver is only compatible with 2.3.x (kernel 2.6.34) and later.
The kernel version is
[root@thor gdm]# uname -a
Linux thor.hsd1.co.comcast.net 2.6.32-300.3.1.el6uek.x86_64 #1 SMP Fri Dec 9 18:57:35 EST 2011 x86_64 x86_64 x86_64 GNU/Linux
My graphics card is a ATI Radeon card
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radeon 483360 1
ttm 38556 1 radeon
drm_kms_helper 24900 1 radeon
drm 173909 3 radeon,ttm,drm_kms_helper
i2c_algo_bit 5090 1 radeon
i2c_core 29229 4 i2c_viapro,radeon,drm,i2c_algo_bit
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01:00.0 VGA compatible controller: ATI Technologies Inc RV350 AP [Radeon 9600]
01:00.1 Display controller: ATI Technologies Inc RV350 AP [Radeon 9600] (Secondary)
Anyone else run into this and found the fix?
Thanks

Dude
Now I know why your called Dude.
Thanks for the link. The radeon.modeset=1 didn't work.
But I read the link and disabled kernel mode setting with radeon.modeset=0 anfd that worked.
Also nomodeset worked as well. Now I get my greating screen and can login again.
Thanks
Patrick

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You are totally right.
I have a Spectre 13 Ultrabook and HP tells me that everything it's ok for the upgrade.
FALSE.
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At this point install the High Definition driver.. NOT the one previously installed.
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Let me add that the care of HP for the existing customer willing to migrate is at least superficial

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I spoke tooo soon.
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Stuttering audio video after 10.8.1 update

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