Intel Mac :: 24 Screen Is Going Bonkers Then System Freezes
May 29, 2012
I have been having a problem that is not application-specific, and not Lion specific. This only happens on my 2009 iMac 24 running Lion 10.7.4. (I also run Lion on my 2011 MBP and have not had this problem.) It doesn't matter whether I'm in iTunes, Safari, Logic, Pages... running applications alone or in combination.It doesn't happen right away. It's usually after I've been active on the computer for at least an hour. I will try to describe it the best way I can:
1. I could be browsing Safari, for instance. I'll notice that a small section of my desktop starts "growing" red, green, and/or blue pixels. If left untouched, the pixels overtake about 70% of the display until the computer freezes. Now, if i click anywhere on my screen -- in Safari or on the desktop -- whatever the mouse is pointing at will redraw itself. Meanwhile, the screen starts blinking rapidly and basically, has a tantrumI can't Force Quit, Restart, Shut Down, or any other activity. The only solution is to power it down using the power switch.
2. I'm working on music in Logic Pro. When I have Logic running, it usually spans the entire display. Within the Logic screen I'll see a small section of these red, green, and/or blue pixels. (Well by now, I know what's coming so I immediately save my work before the system freezes.) I quit out of Logic, but the pixels continue to take over my desktop. If left on it's own it starts going berserk as described above. Eventually the system freezes and I have to power down
This started happening last month. Two things happend last month: (a) I switched my internet service and combined my internet connection with my land line. I had previously been using a dedicated line for internet. (b) My service agreement expired on the iMac... go figure!
On my 1st Gen Mac Pro, I suddenly get a strange blue screen out of no where. Everything on the screen freezes for a few seconds then the screen flashes blue for another few seconds. After the screen comes back from the blue, everything works perfectly again. Even when listening to music, music pauses for a few seconds and then comes back. This happens a couple times a week and its getting on my nerves. Sometimes it lasts for a long time and requires a hard restart.
I have tried reinstalling Leopard/tried hardware test/upgraded to the 8800GT video card and the 3870/I cleaned the whole inside of the box with compressed air. I even took her into the apple store and had a genius look at it over night. They told me everything is working perfectly. Ofcourse it started doing it again after I got home with it. The apple store suggested that I could always replace the logic board but they want over $1000.00 for that and I dont know if its worth it.
Since a few days ago my Macbook Pro 13" from last June started to freeze randomly for atleast 30 seconds and then it would come back and most of the time freeze again after a while (in OSX only it seems, Windows 7 I did not have such problems, though I didn't use it often). Sometimes it occured frequently, other times it didn't and this morning I had the same thing again, I just held the power button and shut it down, did this two times in a short period of time and when trying to boot it for the second time all I get is a gray screen with no Apple logo or anything.
Searched the forums, tried the install DVD and C button to no avail, same thing with trying to reset the PRAM and NVRAM...Is the logic board broken or anything? I don't understand how this could happen...And if I do take my laptop to Apple, should I remove the Intel SSD drive I got in it right now and put in the stock?
When I open system preferences pane, desktop and screen saver, it freezes and I get the spinning beachball. This does not happen with any of the other system preferences.  Â
Info: MacBook Air, Mac OS X (10.7.3), 1.8 Ghz Intel Core i7 late 2011
Ok, I've noticed this week that my 2010 13" MBP hangs a lot when it plays any videos I've bought off of itunes (it's fine with other videos). I mean anytime a itunes video pops up on my itunes player, the whole computer hangs (beachball of death and can't do anything). And it hangs for quite a bit (haven't timed it but a minute maybe?)
At first I thought it was the graphics card as the first time I realized what was causing my computer to randomly freeze up (it's been starting to do that this week but at first wasn't sure what cause itunes was in the background) it gave the wierd color bars on the video screen for the video it was playing (I have itunes play the video in the small box on the left bottom corner). Like the whole video screen was random fubar color bars and not the video (it took a minute and then eventually played fine after me reclicking the video). It has not done that since.
I played around with it and noticed it seems fine when I play videos I have not bought off of itunes but it reliabley hangs the whole computer when I try to play a video bought off of itunes. It eventually plays but it is really annoying particularly cause it holds up my whole computer until it resolves whatever issue it is.
So, hardware or software and any suggestions if it is software on how to fix it?
While trying to pepair permissions systom freeze up. So I put in the startup disk hit restrat holding down c and tried to repair permissions that way and it froze up that way too. I had to manually turn off machine.
Last night I was working in Adobe InDesign and Photoshop when my screen began to flicker like crazy and eventually froze. I could still move the cursor around but nothing would work. I couldn't force quit any of the applications or shut down the system. It eventually shut itself down and after restarting everything seemed normal. About 20 minutes later it did the same thing as I was switching between Safari windows using Expose'. (I recorded a small clip of the flickering and put it on youtube if that helps: [url]...?v=UBjRwRu4IOg ) After the second time this happened I again tried to start it up and it loaded to a gray screen, no startup chime, no apple logo. Nothing. I hit the power button and it shut down again. And the next time it booted all the way. I then shut it down with the intention of calling Apple Care today but apparently my Apple Care ran out in the last month or so. So, I'd have to pay $49 to talk to them about this issue. I thought I'd come here first.
Latetly, after I leave this iMac, and the screen saver susequently comes on, I return to find the screen saver frozen. When I move the mouse (cursor) around, it begins to "erase" the screen saver, revealing the login screen underneath.
Info: iMac, Mac OS X (10.6.8), 27" 2.7GHz Quad i5 12GB mem 1TB
I just bought a LaCie 3TB external. When i turn my computer on and I'm at the login screen my trackpad and keyboard are frozen. When I unplug the LaCie (i know really bad) my mouse and keyboard start working again. Is the LaCie trying to work as my primary drive? Is that why it freezes my mouse and keyboard? How do I work around this (besides unplugging it from the computer)??
My screen freezes up more often and the keyboard shortcuts don't work. I have to manually shut it down. What can I do about it? It's a pain when I'm in teh middle of doing something or chatting in MSN Messenger.
Info: iMac (20-inch Mid 2007), Mac OS X (10.6.8), HP probs
My iMac started freezing at the login screen. I power up, the apple logo comes up (sometimes the blinking globe comes up for some reason) and then the apple logo flashes as if it restarted or something, and the loading indicator shows up for a few seconds. Then at the login screen everything looks normal (my picture is there and correct name of account is shown) when I type the incorrect password, the text box shakes appropriately. When I type the correct password, the loading indicator appears, the mouse turns into a beach ball, and it hangs until I hard shutdown.Â
I know it's not a hardware issue because I just booted from the recovery partition and was able to view all my files in terminal. I would rather not reformat the hard drive. Is there a specific file that may be corrupted that I could delete and mavericks would automatically rebuild it?
I was off of my iMac for an hour or two so my screen saver when on. I went to wake the computer and it was frozen. I tried using the keyboard and mouse to wake up the computer from the screen saver, but it would not work, so I powered the iMac down manually from the button on the back. I let it sit for 15 minutes, then I tried to start the computer up again. Now at start up, I get to a blank white screen with the spinning moving pin wheel, and that is it.Â
my iWeb is all screwed up after the 10.6.2 upgrade.i work on it everyday and yesterday was no exception, save it was on 10.6.1 and everything was OK. did the upgrade via software update to 10.6.2 and it went bonkers.- some links are broken. others are misplaced.- objects (arrows, photos, etc.) randomly placed throughout webpage.- text boxes resized on its own.- "save" = crash!it's a nightmare.
what's happened to apple's software updates? they used to be really good and i could always trust it. sigh. anyone else with this problem? or can offer a solution?
I just downloaded Diablo III, and tryed to install it, it didn't work and i constantly got this Blizzard Launcher can't connect to the internet error. I tryed redowloading the game 2 times, i tryed closing all unnerserssary programs but it wouldnt work. So i went on Skype and called some friends and chatted for around an hour. Then i open Minecraft, and when i join a server, My iMac's screen just freezes. i can still hear my friends over skype and i can still use all the keyboard commands to lower or raise the volume. But other than my mouse and the lighting nothing moves on my screen. I tryed restarting. Didn't work. I can still hear the background programs like Skype and spotify opens but the screen is just all white with some small grey boxes here and there. I tryed taking the wire out and hold the on/off button in for 10 seconds, didn't work either.Does anyone know what to in my situation? Should i go to the applestore and get it fixed? (The nearest Applestore is 2 hours of driving away)
Got my 24" 2.4GHz iMac on release last year, with Tiger. Installed Leopard on it on release day.
The problem I have is that ever since a botched Boot Camp installation I've had endless problems with certain applications hanging during their startup (notably Image Capture) or refusing to quit (notably iTunes). Force Quit doesn't resolve these issues. Restarting doesn't work because Force Quit can't quit them so I have to pull the plug or otherwise force a shutdown.
Upon restarting I either get the grey screen that instantly appears, or, if I've pulled the plug and left it for a few minutes I can get to the Apple symbol but no spinner or any further start up action. Occasionally I get lucky, get back up and running, and all is well until the next crash.
All this started happening when I decided to try installing Windows on Boot Camp again. I've had it on here a couple of times since Leopard was released but usually end up deleting it eventually because either the Windows installation gets bogged down or I get bored with it and never use it. Anyway, this time, using the same discs I've always used (and yes, it's SP2, so it should be fine and anyway it's worked at least twice before) when I got to the 'restart to continue installing Windows' bit, I got the white screen and nothing happened. After an hour or so of praying and restarting endlessly trying to get a response, I finally got it to recognise my OSX installation and was up and running again. The Boot Camp volume didn't appear to be there and Disk Utility revealed zero problems whatsoever. Everything looked fine until these recurring hangs, refusals to quit apps and screwed up start-ups.
Any ideas? I don't have the expensive Apple support, but it's less than a year old! Of course, I realise that this means nothing to Apple, who seem to think I should pay a premium in order to have my machine warrantied by them for more than 90 days. Grr...
If I get it up and running I'm thinking I should just wipe the ENTIRE system absolutely clean and re-install Leopard and then use my Time Machine backup to put all my data back on (pricelessly valuable as I use the machine to work on my photography with), but I'm concerned that if there's a flaw in the System somewhere, a corruption, that installing the Time Machine backup will just reintroduce the error. On the other hand, if it's a deeply embedded and invisinle partition corruption from the bad Boot Camp installation attempt, that should be fixed by wiping the entire drive to reinstall Leopard, right?
I recently took the plunge and installed Lion after being content with Snow Leopard....well now I have quite a few issues. When I open system preferences for some reason it automatically opens to Network...why I'm not sure. When I click show all, then click sharing, I can't make any changes in the Sharing preferences without my entire system locking up. I can't force quit or anything. I can still use the mouse but all I have is the rainbow wheel!
I have searched and searched and haven't been able to fix it. I have tried booting into the Guest account and the same problem happens there. I have trashed all the plist files everyone says to try. I have tried repairing permissions etc. I feel like I have tried everything. Is there anything else that I can do without have to do a clean re-install. I'm hearing if I do this that I won't be able to migrate my files from by backups due to permission problems?
I also took a look at my system log and it is full of this! Jul 3 22:24:26 jessica-imac com.apple.launchd[1] (com.apple.Kerberos.digest-service[1307]): Exited with code: 1 Jul 3 22:24:26 jessica-imac com.apple.launchd[1] (com.apple.Kerberos.digest-service): Throttling respawn: Will start in 10 seconds .....
This weird, but today's software update deleted all but 2 of my screen resolution options in the display section of system preferences. The 2 remaining options are not ideal for my iMac. how I might restore the options that were lost?
After windows is installed a Blue screen appears with cursor on screen but it freezes completely.I can fix this by restarting my mac , then once windows restarts i insert the Mac OS disc , select the disc within my computer but the following message appears "Package requires new version of installer"
My parents recently bought an iMac. Yesterday my mom was playing a game when the computer froze. Neither force quit or holding the power button was doing anything so in her frustration she unplugged the system. Today, after plugging in the system again, it won't turn on.
I press the power button on the side of the wireless keyboard and the green light on the keyboard turns on for about 3 sec and then starts flashing. No fans start up and the screen does nothing.
Information: iMac and Macbook Pro Mac OS X (10.6.3)
In my User & Groups, it shows that a System Administrator with standard access is the current user for my iMac.A "System Administrator" is using an iCloud password to log in and unlock the screen. I cannot delete the user, nor change their password.I am running OS X Yosemite 10.10.1I purchased the iMac from a school closing auction.I know little of apple computers - be gentle.
I want to remove the "System Administrator" who recently appeared (within the last few days).How do I make my computer more secure? (I changed my iTunes password already.)
Over the last few months I've noticed a trend with my dual 2GHz G5 at home, it often locks up and the fans go full-throttle. It sometimes happens when I'm using it and often when I leave it idling for a while. I've noticed that the CPU A and CPU B temperatures start around 120 degrees F when the machine is first powered up and steadily climbs to around 150. Is that normal? The dual 1.8GHz G5 I have at the office doesn't run hotter than 110 degrees. The fans haven't failed. Is there a coolant link? Is there anything I can do to diagnose this, or do I simply need to call AppleCare?
whenever i try to remove something like growl or hyperdock from the other section of the system preferences pane, system preferences freezes. it has done this since whenever i first installed snow leopard on my computer. is this a snow leopard bug that apple has never fixed or should i try a system restore from the 10.6 disks.
Right now I'm saving for the 20" model (2.66). Would The 20" 2.66 iMac Freeze Like The 4850 Issue? Will it freeze like the upper model with wi-fi on? Making sure before I invest in an iMac.
I recently upgraded from my Macbook to a refurbished Macbook Pro and since the day I got it it has been giving me problems. Applications quite suddenly all the time and the system freezes and runs sluggish. The biggest prob is the display. It goes black and won't come back on. Sometimes when it goes blank you can see faintly if you look carefully and you can hear sounds. It slowly deteriorates from a once a week occurrence to a daily one until it won't turn on at all. I reinstall everything once a month. I took my computer to the mac store they ran all the diagnostic tests they have and said it is not a hardware problem. I have now wiped out all of my non-apple applications and the problem is back.
My MacBook was working perfectly until a couple days ago, when it suddenly started hanging every time I booted it up. I gave it a day, and managed to complete some software updates the next time I logged in, after which it started working fine again. Now, however, it KEEPS freezing every ten seconds no matter what I'm doing. The worst part is, it freezes for about five seconds (the pointer becomes a pinwheel, which keeps rotating, as if my laptop's processing something), and then it starts working again. I ran a virus scan to no avail, and have rebooted my MacBook countless times. I don't know what's wrong with my laptop
