IMac :: Screen Freezing When Fullscreen Video And When Running?
Jan 4, 2011
I purchased a new 27 inch 2.8 imac 2 months ago I'm having problems with the computer/screen going black (sometimes grey with vertical lines) and freezing.
This happens frequently when I'm playing World of Warcraft but has recently started to happen when I'm watching youtube videos in full screen. (Do you think its the graphics card?) I originally ran WOW in bootcamp but I had this problem in Windows as well. The only thing I can do when this happens is force the computer off. This happened so often that something got damaged and I had to reinstall OSX. Since this incident I have not reinstalled Windows via bootcamp.
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Jun 25, 2010
I've had my i7 iMac for months now, and it's acted perfectly with no hassles or quirks at all-- until the past couple weeks after I installed 4gb of kingston ram.
The problem occurs whenever I enter fullscreen mode with flash programs-- rather it be fullscreening a youtube video or a livestream. It's more of a 2-3 second freeze, rather than a full-scale freeze. After the freeze, the computer acts normal again, but iStat menus shows one of the lynnfield's processing cores to have a sudden spike in usage for that small period of time (a spike that reaches to the top of that specific core's capacity)
It's not an everytime type of deal, and I only get it maybe once every other day, but it seems to be happening after installing the additional ram. System Profiler has the ram as running fine, and repairing disk permissions doesn't do any help either. I highly doubt it has anything to do with the SMC or PRAM either.
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Aug 27, 2009
I have a iMac(it is an older one but I forget when I bought it) it has OS X 10.4.11, and 1 GB ram. I have 30 GB of free HD space.
Normally, I run Aol Desktop, Firefox, iTunes and sometimes Microsoft Word. But recently while browsing the internet the Mac will stop working. The music will continue to play and the mouse will still move but everything else stops working. The only way I have been able to fix it is to hold the power button for a couple of seconds.
Also, while trying to zero out my free space the available HD space on my computer went to 0 and the Disk Utility said it would take something like 1 million hours to finish so I skipped that step and when it finished my memory was restored.
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May 25, 2009
I recently (3 days of writing this) was playing World of Warcraft and my Mac completely froze. The only way to escape this is by turning the computer on and off. Ever since, any time I open a video game application, within a few seconds my Mac will completely freeze. On occasion my screen will freeze but my mouse will work, albeit in reverse (left is right, up is down, etc.) and will move incredibly fast. No other applications are affected in such a manner and since this is only occuring during graphics intense video games, I suspect my graphics card is causing this.
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Mar 31, 2009
Have a PC hooked up to a Pioneer plasma here, and it's basically used to loop trailers in my video-store. The PC is running Windows 2003, and I thought iTunes is probably perfect for this as all the trailers I use are the 720p ones from Apple's servers. So I connect to the PC with VNC (no mouse or keyboard attached), start up iTunes, start the playlist with the videos and they start running fullscreen. But whenever I close the VNC connection the video window disappears from the Pioneer and I just get the desktop + iTunes. The videos are still running though, as the sound is playing and iTunes say they're running, but the video is completely gone.
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Mar 20, 2012
When I switch on, fan start running aswell the hard drive is spinning. You hear the startup chime as well. But no video signal at all.But the system feels like it's running ok, just the video missing. I'm running Mac OS X v 10.5.8 on Mac Pro (early 2008).
Info:Mac Pro, Mac OS X (10.5.8)
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Jul 3, 2010
I need your opinions; since the 10.6.3 update my iMac has begun to freeze to a blank screen. I think this may be a sign of a dying logic board, however I question this as I don't have the freezing problem with 10.6.2. Picture of blank screen attached.
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Feb 12, 2010
My iMac will be 3 years old Oct 19 2010 and it's running pretty slow. I do a lot of video editing and have 1GB of memory ( I think that's the RAM). I'm pretty sure that's not the right amount of RAM I should have for the things I'm doing but I could be wrong. I have about 5 apps open at once for recreational use and about 2 for video editing, those 2 being Final Cut Pro and iTunes. So would it be my low amount of RAM causing my computer to slow down or another reason?
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Apr 28, 2012
When entered in fullscreen mode is displayed the gray screen (in all application), that it is dislocated from the left for the right, how change it?
Info:
MacBook, Mac OS X (10.7), For all version of Lion
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Nov 26, 2010
I have a 3.5 year old 17" Imac. About a month ago a pink vertical line appeared on the screen. Today its been joined by a blue one and a yellow one. I don't have applecare and I'm out of warranty.
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Jan 19, 2009
I bought my Imac at the beginning of '06 and it's been great but today a small white line appeared running vertically all the way down the screen and over the dock and menu bar. it's white during boot up and then yellow after everything is loaded..does anybody have an idea what this is or how to fix it?
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Mar 11, 2008
My Imac has been acting up. When I restart the mac it takes forever to start up. It goes to the blue and stays there for several minutes and then will finally boot up. I am running Leopard on an Intel 17 in imac.
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Sep 14, 2009
I just bought my new IMac on friday. Worked great for a day and then I had a problem. The fan came on really loud for about a good 10 secs and the screen turned off. I hit the power button and the screen came back on quickly like it had went to sleep. However, the fan came right back on very loud and the screen went black. I did this a couple times until I just let it shut down for an hour because I thought it overheated.
The next time I turned it on it worked fine for about 3 hours and suddenly the fan came on super loud. This time the screen didn't shut off and I was able to continue but it was abnormally loud. This morning I turned it on again and within a minute the fan came on AGAIN. I have to mention that I'm not using any intensive application or anything. The last time I think I only had safari up. Also, this is my first mac and it's not looking promising...
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Dec 2, 2014
I have a red line running all the way vertically through my screen.
Info:
iMac, Mac OS X (10.7.5)
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Jun 3, 2014
My imac screen has gone black?
Info:
iMac, OS X Mavericks (10.9.3)
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Jan 20, 2009
I recently got a Powermac G4 MDD 2003 that I plan to use as my main computer. I have been experiencing issues, where the computer freezes and I have no choice but to hold down the power button, in order to shut down. Also, and music or sounds that are playing at the time repeat the last 0.5 seconds or so of playback. It runs Mac OSX Tiger, and I reinstalled the system yesterday, but not much seems to have changed.
I have had many thoughts as to what causes this issue, like my other computer being connected through the network, my external hard drive, Adobe flash player, and the core system files being corrupt. But none of these have proven to be the issue. I have done a number of system maintenence routines, such as clearing the PRAM, 'fsck -y' from Apple + S on boot (I don't know what its called), and endlessly repairing the disk in disk utility. While writing this message, I got a kernel panic error.
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May 13, 2012
running slow and keeps freezing?
Info:
MacBook
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Nov 11, 2010
I bought my MBP two years ago (late 08 version) and its been really slow to the point where I just got so frustrated I bought an IMac. But now I'm going to be traveling for a couple of weeks and I need my MBP with me. Is there a way to stop this slowness? It like freezes sometimes when I open a file and safari is just unbearable! Should I reinstall OS?
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Mar 4, 2012
So I have a Macbook pro and I have Lion and my computer continues to occasionally freeze while I am running skype. This issue has also occured while I was running Imovie as well. I took it into the Apple store and everyone checked out ok. And when the screen freezes it sometimes goes all black or a grey textured background.Â
Info:
MacBook Pro, Mac OS X (10.7.3)
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Jul 3, 2012
What is the best use/purpose for the Mac Mini?  My wife's G4 (Granite) Tower is ancient and slow and freezes up frequently so it's time to get another computer.  I have a 5 year old MacBook Pro sitting unused after I bought a 2.13GHz MacBook Air . I am contemplating buying a Mac Mini or an 11 inch AirBook. The Macbook Air would give some flexibility to the household by being portable. She does only basic stuff, nothing fancy, so anything will be better than what she's using now. (At some point in the future, I may give my son the Airbook for college and get a new one for me, but that's not what I want to do now.)So my question to the community would be what do you recommend?
1) Reformat and use the 5 year old MacBook Pro (free)
2) Mac Mini? ($599) (I have an external monitor, keyboard and an external Mac Disk Drive so no need to buy them.)
3) MacBookAir 11 inch ($1100)
4) iMac ($1200) (I think this is overkill for her.)
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Sep 12, 2014
Freezes for like 3 seconds more often then not and is running a lot slower then normal ...
Info:
MacBook Pro, OS X Mavericks (10.9.4)
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Jun 3, 2014
I've got Macbook Air probably built in 2010.
Now its too slow. Almost freezing sometimes.
Info:
MacBook Air, OS X Mavericks (10.9.3)
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Jun 2, 2010
I just brought a brand new IMAC 21.5" the base model (NVIDIA GeForce 9400M graphics) with 4 gb RAM. I downloaded the trial version of adobe cs5 to check if it runs ok but when I am starting things from scratch like just creating things from a blank canvas it runs so slow like trying to paint stuff and render it comes up with a loading screen it just doesn�t do it straight away. But when I am working on photos it seems to run ok. Is there away to solve this issue? Do I need to updated my RAM to make it run smooth?
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Jan 13, 2010
I have a late 2007 20" Alu iMac and when ever I watch videos they appear too dark. I have tried changing all the settings I can find and nothing helps.
Its ok if I use VLC as I can change the brightness within the program but anything else ie quicktime, youtube or other embeded video always looks way too dark.
Has anyone else encountered this or is there something out there that I can do do brighten the video image?
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May 30, 2012
my mid-2010 w/lion is running quite slow and hanging: sometimes freezing. have reset smc and emptied caches. helped for a bit but now even slower. happens with minimal load on cpu and have plenty of memory available.
Info:
MacBook Pro (13-inch Mid 2010), Mac OS X (10.7.4)
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Nov 3, 2009
I am a home theatre enthusiast, and I have setup Plex, Boxee, Netflix, Hulu, Front Row and Etc. The menus and interfaces are absolutely stunning and the customization of them are endless. So now I have this 27in LED iMac with greater than 1080p Resolution and these Apps look great but I want the content to look as good as the menus. Aside from the iTunes pseudo (low frame rate) HD, does anyone have any suggestions of a resource for "stunning" video content to match my beautiful 27in screen. It sure would have been nice to have a Blu Ray option. Hopefully the "bag of hurt" will soon be sitting on my desk killing me with pain.
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May 24, 2010
I want to record video and audio of what I am doing on my Screen Via IMAC. Can anyone recommend a good Application to achieve just that. Would prefer freeware but if it needs to be a paid application so be it.
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Mar 29, 2012
I bought some -R DVDs. I want to burn a 700 MB .avi video onto a DVD so I can play it in my DVD player on my television. I put in -R disk, clicked on the DVD icon when it appeared on the computer screen, pasted in the video file I wanted to burn and it seemed to burn it but when I had finished, I put the DVD into my DVD player connected to television and when I clicked 'play' nothing played, there was just a grey screen.
Info:
Mac OS X (10.4.11), Apple Imac G4, SuperDrive
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May 16, 2012
My iMac keeps semi freezing. When I click the mouse and the little color wheel begins to rotate it always freezes. It cannot complete an order to open a program or even take any action. Not even the internet works. To quit I have to unplug the computer. Force quit and even the on/off button doesn't work. I'm running 10.6.8.
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Mar 21, 2012
Since 2 weeks, I have met some problems with FaceTime on my iMac.The video call starts and freezes after 1 seconds.I can see the person that I call but she can't see me. I've tried many things : reboot the iMaccheck the settings of my ISP routerdo all the updates... Then I remembered that I used 2 weeks ago (and for the first time) a BT Headset on my iMac.And then, each time I've launched Facetime, I had a popup error saying that my Headset is not visible ...I thaught it was nothing bad and each time I clicked it on "OK".So I tried to delete the Headset for the BT preferences and then Facetime worked again.
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