ITunes U video playback constantly freezes

I have 64Gb iphone 4S with plenty of free space. iTunes U video (a Yale course in this case) constantly freezes during playback. The video is downloaded onto the iphone, not streamed. I do not have this problem playing the video through the video app. I would like to be able to use the iTunes U app. Anyone else having this problem?

Try updating to the new iTunes U app that was released today.
If that doesn't work, try testing other Yale course videos and other iTunes U videos.

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Video Playback Pauses, freezes on laptop

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Video Playback Pauses, freezes

My Video playback (iTunes 6.0.5- G4 Laptop 15" titanium) constantly pauses and freezes at key points during playback. It will make it approx. half way through a show, then start jumping and freezing. Any Suggestions?
Thanks for any help

My Video playback (iTunes 6.0.5- G4 Laptop 15"
titanium) constantly pauses and freezes at key points
during playback. It will make it approx. half way
through a show, then start jumping and freezing. Any
Suggestions?
Thanks for any help
Ok since discussions have been down all day since I posted, I don't think my post made it on the board, so here it is again:

ITunes / Windows Video Playback.. (what, you actualy want to WATCH vid's?)

I'm sure there are several people out there that are having the same or similar problems, but because I can't seem to find them with the exact problem I'm having, I thought a new thread would be appropriate....
Upgraded from 6 to 7 yesterday... music seems to play OK (not as good as 6, but not all the issues other people are having). Now video playback in iTunes is little more than a slideshow with audio to (almost) match.
When I go to play back any vid podcast, or other video in my library for that matter, iTunes bumps my processor up to 100% and holds it there, and the video does little more than skip and bounce through the entire playback (even if the overlay controls go away fully, the slightest mouse movement brings them back). The audio quality seems to almost follow the video, but they get away from each other (the audio was about 2 seconds ahead of the video/slide show while watching the current version of Photoshop TV). Any other video player works fine, but if I wanted to use them, I would have never installed iTunes in the first place, the idea being that the integration was the blessing.
I USED to be able to watch a video, use Photoshop CS2, have Flash 8 open behind it, After Effects running on a seperate monitor, browse the web, and play freecell all at the same time, with several background utility style apps going all at the same time with out a hickup.
After trying the IDE fix's, the sound setup fix's and any other fix's found in the discussions (and yes, reverting them after they failed to fix the problem), I'm still having an issue, and now I can't find iTunes 6 to try to get back to a good time in life... oh why oh why apple, why do you have just as many issues as windows? I had hoped for so much more....
Anyone? Any Ideas? Anyone willing to email me itunes 6 so I can get back to a better time in life? Or provide answers? I've got a horriable track record with apple (over 20 business stopping questions, and to date 0 responses) so I am about 2 minutes from giving up
Sorry apple, but this is way past frustrating... were all your win/tel beta testers using mac's?
HomeBuilt Windows XP Pro ATI 9700 Pro / AMD Athlon 64 3800+ / hampster on treadmill running his head off...

Are sure that's not Flash needed for those videos?

When i'm watching a show or movie on iTunes, the video will randomly freeze and the audio will continue, the video catches up after awhile, but it does it again. This happens to all my shows, and I downloaded them from iTunes. Why is this happening?

Whenever I try to watch movies on iTunes on my computer, the video will randomly freeze, but the audio will continue. This happens will all of my shows, however this never happens on my iPod or iPad. Whenever I want to watch a new movie I buy or any of my shows this problem keeps happening. I have tried uninstalling and reinstalling and it did not work. Why does this problem keep happening, and how can I fix it? Thank you.

John0618. Did you ever get a response or solution to problem? I have the same problem (starting about three months ago).

Video playback momentarily freezes often

I have a brand new Macbook Pro 13", 2.4 dual intel chip, 4 gigz ram, NVIDIA 9400M graphics card. I just freshly installed OSX 10.6.1. My preferred video software is VLC, but I have had the problem using quicktime and DIVX player as well.
When I try opening a video file, (.avi and .mkv mostly) the video sometimes plays fine for a good 15 minutes before starting to stutter, freeze, and glitch. Sometimes it does it right away, sometime not till the middle. It is very spontaneous. Most often the screen will freeze but sound keeps going, eventually the screen unfreezes and catches up with sound. I can still use the mouse, open other programs, move and open windows, the only thing affected is video playback. I also had a 13" Macbook aluminium which has 2.0 intel, only 2 gigz ram, and same video card but never had this problem, seems to be MBP specific.
I have made sure all my software is up to date, don't worry about caches and all that because it is a fresh new install of OSX.
Can someone please help me with this problem? Thanks for your time

Have you run software updates? There is one for 10.6.1
This article is perhaps useful:
http://news.softpedia.com/news/Mac-Pro-Owners-Get-Update-for-Freezing-ATI-Radeon -2600-XTs-80665.shtml
It seems to be a problem with the firmware, and most users have replaced the graphics card to "fix" the issue.

Video playback pauses/freezes when I move my T500... also keeps dropping wireless connection...

Video playback in Windows Media, Quicktime and in Firefox (youtube, etc.) pauses when I physically move my laptop. I've never had this happen on any other laptop. Any suggestions?
Another annoying problem is that it drops the wireless connection in my home every couple of minutes. This doesn't happen with any of the other 3 laptops I'm running so it's not my ISP or router.
Thanks for any help!

666eyes wrote:
Video playback in Windows Media, Quicktime and in Firefox (youtube, etc.) pauses when I physically move my laptop. I've never had this happen on any other laptop. Any suggestions?
The ThinkPad Active Protection System (APS) will protect the Hard Drive when you move your ThinkPad, and this probably causing the behaviour you are observing. There are options for disabling APS for particular purposes, so you should have a look in the APS options... look in the ThinkVantage folder on your Start menu.
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Cheers,
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I don't work for Lenovo

**Captured Video Playback Issue - Freezing

I've capture 10 short video clips, and discovered when trying to play them back on the iPhone that some simply will not play. When you open the photo app, select the clip, and press the play button, the iPhone just locks up. Totally locks up. The only way I've been able to unlock is holding down both the Sleep/Startup button and the Home button for 10 seconds and the device resets.
Once reset, if I go to a clip that works, it plays normally again, but select one of the bad clips, and it locks again (also locks if I try to delete one of the bad clips). To remove a bad clip I open the Photo app, highlight the clip or clips in question), press the options button, and then click Delete.
However, once I deleted the clips that caused the crashing, some of the clips that played normally have stopped working and now freeze the entire device.
Once while trying to delete some clips, the whole Photo app on the phone appeared to be completely empty. I restarted and it was the same - empty. Restarted again and everything was back.
Help. I've got an appointment at the Genius Bar Saturday, and am hoping we can get to the bottom of this or get the phone replaced.

Jason,
I just went through the whole restore process, and the issue persists - crashing/freezing on playback of videos captured through the iPhone, as well as fuzzy photos (both viewed through the Photo app). On the fuzzy photo side, what's odd is the first photo you look at seems to look good; all after that look fuzzy. Strange.
On the playback side, I'm wondering if there isn't an actual hardware issue that's causing that problem since the software has been completely replaced.
Not happy with the current situation at all, as the camera is a pretty central function of the phone (for my uses) and as it stands I'm better able to use even the camera from my original iPhone.
Taking this in Saturday, which is the first appointment I could get when I tried to go in on Wednesday. My concern is that tomorrow is the last day I think I could technically return this phone for a refund with no restocking fee. If I go in Saturday and get a replacement phone that's refurbished, as new as my phone is, I'm going to be feeling pretty annoyed.
Thoughts or any additional things to try?

ITunes 7 Video playback on Front Row

Hi.
I've recently upgraded to iTunes 7 and my front row will no longer play my videos. My other music works fine and i can still play videos via iTunes, but front row just tells me i have no videos in my library.
It worked perfectly with iTunes 6. It's just stopped since the download.
Can anyone help. Please!!!
Imac (Intel Core Duo) Mac OS X (10.4)

Apple have very kindly released an update and it has cured my problem. Thank you Apple.

ITunes 7 Video Playback Problems

I've been looking through this message board and haven't been able to find a post where this question was already asked, so I hope I'm not the only one experiencing this problem. With iTunes 7 (and the new Quicktime), all the mp4 videos on my computer will play only audio, while the video consists of either a blank window or a jumble of flashing bright colors laced with an occasional snippet of the video. All of these videos worked perfectly prior to the updates. Interestingly, there is one exception to this: all of the episodes of "It's Always Sunny In Philadelphia" (Season 2) play perfectly, for no apparent reason. I've tried uninstalling and reinstalling the applications, but that doesn't work, nor does merely trying to play them in Quicktime rather than through iTunes itself. Please let me know if there is ANY way to fix this, as I have invested a lot of time and money into my video collection! Thanks.
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I would like to get some more information on this. Please try these steps:
1. Quit iTunes.
2. Go to: Start menu > Control Panels > QuickTime.
3. Click on the Advanced tab.
4. Un-check the checkbox next to "Enable Direct3D video acceleration".
5. Open iTunes.
6. Play the video.
Does the issue occur?
I also need to get some information from the affected systems:
1. Navigate to C:\Program Files\QuickTime.
2. Double-click on QTInfo.
3. Click on the yellow question mark icon in the upper left corner of the window and choose Save Log.
4. Save that file somewhere.
5. Attach that file to an email, and send it to me. Please also let me know the results of the steps above.

ITunes stuttering video playback

I have a new HP laptop with Windows 8.1 64 bit. It has an AMD A4-5000 processor, 1.83Ghz with 4GB RAM and Radeon HD 8330 graphics.
When trying to play my videos in iTunes (encoded h.264), they are choppy and stuttery to the point of being unwatchable. Happens with SD and HD videos.
The exact same video files play just fine in Windows Media Player on the same computer, and they play fine on my iPad 3.
Things I have tried:
I have uninstalled all Apple software and re-installed iTunes.
I have manually installed QuickTime (I had no QuickTime icon in Control Panel after only installing iTunes).
I have installed the CCCP codec pack.
I have amended QuickTime's settings to disable Direct3D hardware acceleration, and also disabled all DirectX settings in QuickTime (i.e. "Safe Mode").
I have manually installed DirectX

OK, so I found in another thread how to enable legacy codecs via terminal, and I did that.
After that I think there was a subjective improvement the *first* time I loaded a .mov file to view in QT X, then same old stutter and lag for that file and other formats also.
FWIW, the files seem to view OK if I use VLC. But that does not help with the protected .m4V files from ITMS.
Anyone got any other suggestions?
Like I said, surely my MBP ought be able to play videos from iTunes, it used to be able to.

Video playback stops and starts

I've never had this problem before but since I wiped my 5th Gen (late 2006) iPod Video and put new content on it the video playback keeps freezing for a second and then continuing. Most of the time the audio keeps going but sometimes they both stop and start again. It's very annoying. I don't see anyone else in this forum complaining about this. Am I the only one?
Anybody have any suggestions on how to fix this?
-LT

What codec does your source footage use?
What codec is applied in Sequence > Settings?
Where are the source footage and render files located on your computer?
Version of FCS, Mac OS X and QuickTime?

Problems with video playback

Hi all.
My system is: P4 2.6 ghz, ATI Radeon HD 2600 XT 256 DDR3 AGP, 1024 mb DDR RAM.
I installed arch.
Also I installed alsa, codecs, gstreamer codecs, vlc, mplayer, totem, gnome, catalyst dirver, etc. All from repos. Default kernel.
During video playback picture freeze in few seconds each 10-15 minutes, but sounds continue playback. In this freezing time, my CPU raise to 100% utilization according gnome cpu monitor. After few seconds of freezing system comes back. It happens each 10-15 minutes. Compiz is off.
I tried to run video using console, I run mplayer, vlc and totem in console, choose video file and playback. Only vlc shows error message from av codec and "(maybe computer too slow?)" message. Other players show nothing about freezing.
Video file - simple video, not HDTV.
A have ubuntu on another HDD, in ubuntu video playback is ok.
My xorg.conf from arch
cat xorg.conf
Section "ServerLayout"
Identifier "Default Layout"
Screen 0 "aticonfig-Screen[0]-0" 0 0
Option "AIGLX" "on"
EndSection
Section "Files"
RgbPath "/usr/share/X11/rgb"
ModulePath "/usr/lib/xorg/modules"
FontPath "/usr/share/fonts/misc"
FontPath "/usr/share/fonts/100dpi:unscaled"
FontPath "/usr/share/fonts/75dpi:unscaled"
FontPath "/usr/share/fonts/TTF"
FontPath "/usr/share/fonts/Type1"
EndSection
Section "Module"
Load "extmod"
Load "dbe"
Load "dri"
Load "xtrap"
Load "record"
Load "GLcore"
Load "glx"
Load "freetype"
EndSection
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "us,ru"
Option "XkbVariant" ",winkeys"
Option "XkbOptions" "grp:alt_shift_toggle,grp_led:scroll"
EndSection
# commented out by update-manager, HAL is now used
#Section "InputDevice"
# Identifier "Configured Mouse"
# Driver "mouse"
# Option "CorePointer"
#EndSection
Section "Monitor"
Identifier "aticonfig-Monitor[0]-0"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection
Section "Device"
Identifier "aticonfig-Device[0]-0"
Driver "fglrx"
Option "UseFastTLS" "1"
BusID "PCI:1:0:0"
EndSection
Section "Screen"
Identifier "aticonfig-Screen[0]-0"
Device "aticonfig-Device[0]-0"
Monitor "aticonfig-Monitor[0]-0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
Section "DRI"
Mode 0666
EndSection
Section "Extensions"
Option "RENDER" "Enable"
Option "DAMAGE" "Enable"
Option "Composite" "Enable"
EndSection
Help me, please.
p.s. sorry about my English.
Thanks.
Last edited by skoder (2008-11-30 14:07:11)

I made update.
Now I have catalyst 8.11. I`m testing video playback with different players, it take some time. I`ll write about results.
By the way, today I found another strange bug with fglxr. While I resizing x-chat window, X locked and all key combinations not working. Only hard reset can reboot computer. After that, in /var/log/messages.log I found these lines:
Dec 3 22:47:33 fabian [fglrx] ASIC hang happened
Dec 3 22:47:33 fabian Pid: 3474, comm: Xorg Tainted: P 2.6.27-ARCH #1
Dec 3 22:47:33 fabian [<f8dea65e>] _ZN4Asic16WaitForBitsClear19ConditionSuccessfulEv+0x1e/0x70 [fglrx]
Dec 3 22:47:33 fabian [<f8d67929>] firegl_hardwareHangRecovery+0x19/0x30 [fglrx]
Dec 3 22:47:33 fabian [<f8de99db>] _ZN4Asic9WaitUntil15ResetASICIfHungEv+0xb/0x20 [fglrx]
Dec 3 22:47:33 fabian [<f8de9977>] _ZN4Asic9WaitUntil15WaitForCompleteEv+0x97/0xf0 [fglrx]
Dec 3 22:47:33 fabian [<f8df434c>] _ZN8AsicR60016ASICIdleInternalEN4Asic15idle_WaitMethodE+0xcc/0x1f0 [fglrx]
Dec 3 22:47:33 fabian [<f8dc5b86>] QSSubmitList+0x56/0x170 [fglrx]
Dec 3 22:47:33 fabian [<c0310000>] cpu_init+0x8/0x29a
Dec 3 22:47:33 fabian [<f8de811c>] _ZN4Asic7PM4idleENS_15idle_WaitMethodE+0x4c/0x80 [fglrx]
Dec 3 22:47:33 fabian [<f8de1245>] _ZN15QS_PRIVATE_CORE7PM4idleEN4Asic15idle_WaitMethodE+0x35/0x70 [fglrx]
Dec 3 22:47:33 fabian [<f8dce3f1>] _ZN10QS_PRIVATE11synchronizeEv+0x31/0x40 [fglrx]
Dec 3 22:47:33 fabian [<f8dc5cb7>] QSSynchronize+0x17/0x20 [fglrx]
Dec 3 22:47:33 fabian [<f8dcf0b9>] _Z14uQSSynchronizej+0x19/0x20 [fglrx]
Dec 3 22:47:33 fabian [<f8dd780b>] _Z8uCWDDEQCjjjPvjS_+0x3db/0x1260 [fglrx]
Dec 3 22:47:33 fabian [<f8dc51a4>] CMMQS_uCWDDEQC+0x34/0x40 [fglrx]
Dec 3 22:47:33 fabian [<f8d86b92>] firegl_cmmqs_CWDDE_32+0x402/0x4b0 [fglrx]
Dec 3 22:47:33 fabian [<c01c64a6>] proc_get_sb+0x96/0x160
Dec 3 22:47:33 fabian [<f8d852dd>] firegl_cmmqs_CWDDE32+0x8d/0x140 [fglrx]
Dec 3 22:47:33 fabian [<c01220d7>] __dequeue_entity+0x57/0xc0
Dec 3 22:47:33 fabian [<f8d85250>] firegl_cmmqs_CWDDE32+0x0/0x140 [fglrx]
Dec 3 22:47:33 fabian [<f8d85250>] firegl_cmmqs_CWDDE32+0x0/0x140 [fglrx]
Dec 3 22:47:33 fabian [<f8d62717>] firegl_ioctl+0x227/0x2b0 [fglrx]
Dec 3 22:47:33 fabian [<c01c64a6>] proc_get_sb+0x96/0x160
Dec 3 22:47:33 fabian [<c01c64a6>] proc_get_sb+0x96/0x160
Dec 3 22:47:33 fabian [<c01c64a6>] proc_get_sb+0x96/0x160
Dec 3 22:47:33 fabian [<f8d576b7>] ip_firegl_ioctl+0x17/0x20 [fglrx]
Dec 3 22:47:33 fabian [<c01c64a6>] proc_get_sb+0x96/0x160
Dec 3 22:47:33 fabian [<c0197038>] vfs_ioctl+0x78/0x90
Dec 3 22:47:33 fabian [<c01970b7>] do_vfs_ioctl+0x67/0x2f0
Dec 3 22:47:33 fabian [<c01973a6>] sys_ioctl+0x66/0x70
Dec 3 22:47:33 fabian [<c0103ef3>] sysenter_do_call+0x12/0x33
Dec 3 22:47:33 fabian [<c01c64a6>] proc_get_sb+0x96/0x160
Dec 3 22:47:33 fabian =======================
Dec 3 22:47:33 fabian pubdev:0x1f8f142a0, num of device:-119273289 , name:<NULL>, major 55, minor 0.
Dec 3 22:47:33 fabian device 0 : 0xf8e408b7f7d84000 .
Dec 3 22:47:33 fabian Asic ID:0x9586, revision:0x1a, MMIOReg:0x8f8c60000.
Dec 3 22:47:33 fabian FB phys addr: 0xe0000000, MC :0xe0000000, Total FB size :0x10000000.
Dec 3 22:47:33 fabian gart table MC:0xeff73000, Physical:0x0, size:0x88000.
Dec 3 22:47:33 fabian mc_node :MC_NODE__AGP, total 1 zones
Dec 3 22:47:33 fabian MC start:0xd0000000, Physical:0xd0000000, size:0x10000000.
Dec 3 22:47:33 fabian Mapped heap -- Offset:0x0, size:0x2000000, reference count:5, mapping count:0,
Dec 3 22:47:33 fabian mc_node :MC_NODE__FB, total 1 zones
Dec 3 22:47:33 fabian MC start:0xe0000000, Physical:0xe0000000, size:0x10000000.
Dec 3 22:47:33 fabian Mapped heap -- Offset:0x0, size:0xff73000, reference count:6, mapping count:0,
Dec 3 22:47:33 fabian Mapped heap -- Offset:0x0, size:0x1000000, reference count:1, mapping count:0,
Dec 3 22:47:33 fabian Mapped heap -- Offset:0xff73000, size:0x88000, reference count:1, mapping count:0,
Dec 3 22:47:33 fabian Mapped heap -- Offset:0xfffb000, size:0x1000, reference count:1, mapping count:0,
Dec 3 22:47:33 fabian Mapped heap -- Offset:0xfffc000, size:0x4000, reference count:1, mapping count:0,
Dec 3 22:47:33 fabian mc_node :MC_NODE__GART_CACHEABLE, total 3 zones
Dec 3 22:47:33 fabian MC start:0xbf400000, Physical:0x0, size:0x10c00000.
Dec 3 22:47:33 fabian Mapped heap -- Offset:0xc00000, size:0x100000, reference count:1, mapping count:0,
Dec 3 22:47:33 fabian Mapped heap -- Offset:0xb00000, size:0x100000, reference count:1, mapping count:0,
Dec 3 22:47:33 fabian Mapped heap -- Offset:0xa00000, size:0x100000, reference count:1, mapping count:0,
Dec 3 22:47:33 fabian Mapped heap -- Offset:0x900000, size:0x100000, reference count:1, mapping count:0,
Dec 3 22:47:33 fabian Mapped heap -- Offset:0x200000, size:0x700000, reference count:2, mapping count:0,
Dec 3 22:47:33 fabian Mapped heap -- Offset:0x0, size:0x200000, reference count:2, mapping count:0,
Dec 3 22:47:33 fabian Mapped heap -- Offset:0x0, size:0x11000, reference count:1, mapping count:0,
Dec 3 22:47:33 fabian Dump the trace queue.
Dec 3 22:47:33 fabian End of dump
It looks nice, yeah?

Freezing with iTunes 7.6.1, thumping sound,especially during video playback

Hi,
Has anyone noticed a decrease in system reliability after upgrading to iTunes 7.6.1, especially during video/videopodcast playback in iTunes on their MacBook Pro's?
Specifically, the entire system locks up. Reminds me of the days of OS 7.5.5 when the mouse cursor freezes, keyboard stops responding. The only way to proceed is by holding down the power button.
This has occurred about 4 times now. The trackpad will become unresponsive, keyboard buttons such as caplocks and nu lock will be unresponsive too. Most interesting is that the sound output will loop, usually a short bit of the last audio played back over iTunes.
Videos which have triggered this:
- Podcast: Diggnation
- Podcast: ABC World News Now
- YouTube video's converted by Tooble
Here's a video I recorded showing the thumping noise. It sounds like the last audio dump before the crash looped. It's not coming from the hard drive. Definitely from the speakers.
http://www.youtube.com/watch?v=wzOCcINoClg
In the video you see I had World of Warcraft up, but I don't think it is the problem, because this kind of crash has occurred while using other programs.
Details:
iTunes 7.6.1
QuickTime 7.4.1
Mac OS X 10.4.11
2.2 Ghz (MacBookPro3,1)
4GB RAM
External second monitor attached: eMachines 15" LCD
Prefrence panes additions: Application Enhancer, Divx, FinderPop, Flip4Mac WMV, Perian, Teleport, WindowShade X.
Have NOT installed Security Update 2008-001 OR AirPort Utility 5.3.1 pending user problem reports.
I never had such a complete system freeze until about the time I updated to iTunes 7.6.1. Repaired disk, permissions, cleaned up virtual memory, cache's using AppleJack.
Thanks, just want to see if this is an isolated problem.

First, create a new user account and see if you can replicate the problem on that account.
If so, start by killing all the running daemons that aren't OS X-native apps. In other words, Window Shade X, Application Enhancer, divx, etc. Quit all that junk and use Activity Monitor to make sure those apps aren't running background tasks. I'd be willing to bet that Application Enhancer is the culprit.
See if that solves the problem. If so, you can add the applications back one by one until you find the one that's causing problems.

ITunes 9.0.2 video playback freezes temporarily at 9 second pointiTunes 9.0

iTunes 9.0.2 video playback freezes temporarily at the 9 second point. Playback resumes at around the 12 second point. The sound also pauses with the video. I've tried playing the same videos in Quicktime and they play fine. How can I fix this?

I have the same issue! Were you able to slove it? if so, how?

ITunes U video playback constantly freezes

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