IMac (Intel) :: Multiple Daily Lockup / Green Squares On Screen
Jun 20, 2014
New iMac at first of year has always locked up with green squares (1/4") randomly on the open window. I have to do a hard boot to unlock the screen. This may happen 5 or 6 times a day but I'm finding no pattern. It happens in any software, mail, internet browser, extra programs and only using what I need at the moment, including mail and internet, hasn't worked. I've run disk utility - repair disk and repair permissions multiple times to no avail. I've reinstalled the OS Mavericks and Adobe Creative Suite programs (Photoshop & Premiere Pro), no improvement.
I purchased a high-end iMac specifically to handle high-demand video editing needs. But this happens when checking email or browsing the internet too. Here's a listing of the system from a "Panic (system crashes) log" from the "Activity Report."
3/26/12 1:44:13 PMkernelAppleBCM5701Ethernet: 0 a BCM5701Enet::replaceOrCopyPacket timedout This is the last line I get in any logfile before the system totally locks up. This happens at least once a day, with no particular pattern. This started happening about 3 weeks ago, and the only solution is to power cycle the machine.
There are no other items in the log files to indicate anything is wrong. This is the only common log entry, and always the very last before the system is power cycled. I have no idea what is causing the system to hang like this. Mac Mini Snow Leopard Server
Sometimes, when my iMac has been "resting" and I then move the cursor using track pad I get a stream of black squares on the screen. The more I move the cursor the more black squares I get. If I switch off and then on the screen is ok. This is an intermittent occurrence.
I have a 10.4 iMac. Recently when using it the screen starts to pixelate with large random squares and effectively makes the computer useless. Either that or I get moving multicoloured flashing squares (very psychodelic)Also on booting up the grey screen with the apple logo has dark grey sqaures and then when it goes to the blue screen has a series of smaller squares top and bootom. The booting up stops at this point.
I have ran the disk doctor, but it doesn't seem to have made any difference.
I have a mid 2007 iMac that seems to, for no apparent reason at all, just randomly go to a blank screen, locking up my Mac requiring a hard shutdown. This happens sometimes right after I start it up or after I'm on for hours at a time. Or not at all, I simply don't get it. I reinstalled Lion (after I redownloaded it to be safe) and it didn't seem to work.
Info: iMac, Mac OS X (10.7.4), Mid 2007,500GB Hard Drive, 3GB Ram
How many Mac users have suffered from the problem of small coloured squares appearing at random on the iMac desktop? They can be wiped by dragging a window over them but they will eventually reappear. I have discovered at least three other threads where this issue has been discussed but our local Apple store is claiming that Apple haven't declared it as a legacy fault. It would be interesting to hear how others have been treated when presenting Apple with this fault. At first they thought it was the GPU but they now think that it is either the logic board OR the logic board AND the GPU together!! Being charged between £480 and £650 to repair a machine that is less than 18 months old is a bit much from a company that continually boasts about the quality of its products.
Suddenly yesterday when I powered mi iMac I had some horizontal green bars on the startup screen then it powered normally. But it happened two times, now every time I power on my iMac the screen stay black, and i can use my computer, everything else is working normally (i still can use Alfred to turn off my computer).
I already tried resetting the Command+Option+P+R, it didn't work. Also the Safe mode.
On my mid 2007 Aluminum 24" Intel Imac shows nothing but a white screen when powered on even though according to the diagnostic LED lights which are all powered on and green the logic board, video card, and everything else are speaking back and forth to each other perfectly fine. Does this mean the LED screen is bad or (from what I've read) is it a possibility the hard drive is bad? I know the optical drive is bad and will not spit out any discs. The #1 reinstallation disc for the OS is stuck inside right now. Before I order a new screen, inverter, and optical drive I figured I should ask in here to see if it is just bad hard drive or something else. Wouldn't the LED diagnostic lights tell me if the hard drive was bad?
I'm running a late 2009 iMac, 2.8 GHz Intel Core i7 with 8 GB memory with 27 inch ATI Radeon HD 4850 512 graphics card running 10.9.4 OSX.
I will get spontaneous crash of the system that causes small blue squares over the entire screen. The problem will resolve after 1-2 restarts. I ran the system diagnostic disk and found no problems on the long and short versions. It is an intermittent problem as the display and system are running fine now but daily will have the crash occur. Once the spots are present the computer will be frozen with no response to keys or mouse.
Info: iMac (27-inch Late 2009), OS X Mavericks (10.9.4)
When I open a new web pages in Safari, it closes the current page. I want to be able to open another (i.e., split screens) in safari without closing the current page so I can work between the pages. I'm new to the iMac, but I had this feature on my Windows PC.
Usually when playing an online game called "Marble Blast Online" (via [URL])my mac will lockup and go to a solid black screen. The computer will not respond to any keys pressed, front row remote, mouse, basically anything. The only way to get out is to hold down the power button on the back of the mac to force shut down the computer. I've spoken to the game developers, and they say that it is probably defective hardware because all the other mac users seem to be able to play the game fine. If this is so, which hardware do you think it would be? Something serious such as the motherboard, or simply a video card? How could I go about getting this fixed or replaced- take it to the genius bar?
I just booted up me Mac and got a screen full of yellow squares. I can still see all the icons and everything seems to be working. Is my display going, or is there a fix?
I have an iMac8,1 24". While working on the iMac, the screen turned complety green. After a restart, the screen was back to normal. What could cause this? Should I be concerned?
Apple delivered a refurb MP. And I just hooked it to my 30" ACD. Then suddenly the screen froze with digital artifact lines and squares. Only way to release it was to do a hard shut-down. And restart. Looks like its the stock standard graphics card. Is there any know probs with the ATI 2600. Also under Graphics/Displays. it just says ATI Radeon HD 2600 (rather than 2600 "XT") guess its the same card. Should I call Apple and get this exchange?
I own a 17" g5 imac and today I was just browsing on Firefox and all of a sudden the screen became checkered with thin pink and white lines. It is most noticeable on the menu bar and anything that is grey or white in color. It is not checkered on the blue background behind my desktop photo. I have an external monitor plugged in as well and the same thing is happening to that monitor.
I have a powerPC imac G5 OSX 10.5.8 1.5GB DDR RAM ATI Radeon 9600
Here is a screen shot: Haven't reformatted it yet. Hope there is a better solution. Purchased it used about a year ago. No warranty.
I also have the same problem with the green text underline. I don't know how to get rid of it. How to get rid of the Downlite. The instructions are too complicated for me.
I have a problem with the display of an iMac G5 20". It shows up as vertical lines of small squares.
If I change screen resolution, the display will look ok for about half a second, and then it comes back again. Anyone had seen this before? (This is does not look like the usual problem with iMac and thin vertical lines.)
During the boot-sequence the screen of my Imac 27" flashes green (once), then returns to normal. This does not happen when I boot my Windows (Bootcamp) partition, so I assume this is some kind of OSX driver error. This started to happen only after I installed the latest patch (10.9.3). How to get rid of it ?
I shut my mac down 1 week ago. Apparently, it chose to restart. I am looking at an incomplete green status bar. I turned the computer off and back on. The status bar is stuck at 1/3. What can I do? I have no time machine backups.
I'm about to buy new 27" iMac. I am undecided between the two quad core models. There are big differences in the daily use between the two? worth spending more for the Core i7.
Working in Excel today, I was highlighting groups of cells with color when the entire screen suddenly had a pale grey-green tint. Can still see colors beneath, but everything tinted (not just the Excel window, but the entire display). White, of course, is most dramatic. The Dell monitor beside it is fine.
I've recalibrated color a half dozen times (have always had to do that to get the Dell and iMac screens as similar as possible). It's impossible to get white on the Mac. Rebooted several times, including hard boot, zapped the PRam, ran Permissions Repair and Disk Repair from the startup CD. Installed Temperature Monitor to see if there's a heat problem, but I could not find normal temp values anywhere on the Web, so that was something of a bust. Temps attached below in case there's an educated set of eyes out there....
Ran some online tests, too, for color distortion, dead pixels, that kind of thing, but nothing reveled.
I've been all over the Web looking for some guidelines, but most posts at apple and elsewhere seem to focus on later-model iMacs with the yellow lower screen problem when new (It's not that) or panic screens of wild colors, stripes, and the like. This is just a grey-green tint that covers the entire screen, rendering whites grey-green and colors muddy.
For the past four days my iMac slows down in the afternoon after running fine for several hours. It runs fine after repairing the disk permissions but does the same thing the next day.
Info: iMac (21.5-inch Mid 2011), Mac OS X (10.7.4)
My network diagnostics remember my name, password, etc., but for some reason it won't connect to the internet the first time I try each day. I have to click on "Network Settings" and manually go through to change all the red dots to green. Like I said, I don't have to update, change, or manually enter anything; just click through the boxes. If it saves all my info, why can't I simply launch Safari from the beginning?
I've created a joint account, one for my self and one for my wife as we both have apple id's. I have transferred photos from my windows laptop to the shared folder in 'macintosh' so this library is available for all three user profiles, however there are folders within i would like only for designated users.
How can I save these folders to the picture folder when logged in to a specific account? I would then like to delete these folders from the shared library.
At the moment I can only click on the iPhoto library which takes me there and shows me the folders but i cannot see anyway of selecting specific folders and moving them to another location.
Is there a way or an app that can search for different images across various volumes? I need to locate 200 images for an InDesign file across 3 server volumes.
