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.
Info:
iMac, Mac OS X (10.7.1)
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.
Info:
MacBook
Pro, Mac OS X (10.7.2)
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."
System Profile:
Model: iMac14,2, BootROM IM142.0118.B00, 4 processors, Intel Core i7, 3.5 GHz, 32 GB, SMC 2.15f2
Graphics: NVIDIA GeForce GTX 780M, NVIDIA GeForce GTX 780M, PCIe, 4096 MB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz,
[Code] .....
Desktop restart shows flickering black/white screen, then black. Could not restart.
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iPad 2, Mac OS X (10.6.6)
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 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?
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MacBook Pro
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?
View 5 Replies View RelatedMy MBPro, OSX 10.4.11 boots up to frozen blue screen with little pixelated squares.
Info:MacBookPro, Mac OS X (10.4.11)
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.
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iMac (27-inch Late 2009), OS X Mavericks (10.9.4)
New to Mac computers. When trying to open computer after being in sleep mode, I clicked the mouse to open the password screen, & a blank blue/black screen appeared & the mouse timer( colored circle) appeared, as if to be waiting. I had to unplug the computer to reboot it. This has happened twice in 2 days.
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iMac (27-inch Mid 2011)
How do I change the iTunes screen display from 'white on black' to 'black on white'
Info:
24" iMac
Ever since I've had my Mac, about three times a day my screen will go completely black after I've moved the cursor very quickly or in a herky-jerky motion. I don't think I'm pressing down on the right or left--it just seems to be some motion.
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MAC 24" 2.66 mgz, Mac OS X (10.5.6)
So when I try to log in, the screen goes black, after a few seconds, when I move the mouse around, press a few keys on the keyboard, the login screen comes back. But the same thing happens when i try to log in, it just keeps going black.
View 3 Replies View Relatedmy screen keeps going black randomly but everything in the background is still playing. When i press the power button twice it will go to standby and then turns on again, but the black screen keeps getting more and more frequent. Ive tried resetting the SMC and the command+option + PR thing but nothing has worked.
Info:
iMac, Mac OS X (10.6.8)
problem of getting black screen on imac running 10.6.8?
Info:
iMac (27-inch Mid 2010), Mac OS X (10.6.8)
Lately, as of two days ago. My iMac has been freezing and the screen just goes either black or another color that's on the screen. I was doing a conference call today, when my screen went black and I couldn't get the picture back. The audio ect worked fine, but the screen on my side went black. The computer has been freezing a lot since I upgraded the lion OS to the latest one. It runs faster, but freezes too much.
Info:Imac Intel duo, Mac OS X (10.7), 2 GB Memory
Why does imac screen turn black?
Info:
Imac, Mac OS X (10.6.5)
My computer screen goes black but computer is still working ( music playing, video playing etc.) later the screen saver comes back on in 5 to 10 minutes and I can see everything again. This can happen several times during a computer session, any ideas what the problem is?
Info:iMac (24-inch Early 2008), Mac OS X (10.6.8)
why is the screen flickering and then going black
View 1 Replies View RelatedI have updaed to adobe reader 10.1.3 and now when I try to view .pdf's in safari or foxfire it just has a black screen. When I try to save as is says is doesn't recognize .pdf.
Info:
iMac
For the past week, my screen goes black several times a day and I need to restart with the start button to restore.
Info:
iMac
I have a tiny black spot on my imac screen that is only noticable when background is white.
Info:iMac
Screen in complete black. Because is new maybe I am doing someting bad.
View 1 Replies View RelatedWhen I turn on my iMac the apple logo appears behind what looks like jail bars then a dark shade rolls down the screen then tiny squares appear all over screen with error message to restart if it fails to restart manually, which it does. Cannot get past this point.Tried command R to no avail.
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iMac (27-inch Mid 2011), iOS 5.0.1
I've got a mac that powers up but just show a black screen? Any ideas?
Info:
iMac, Mac OS X (10.7)
My Imac---which is less than a year old--randomly goes black but continues to function otherwise. This is happening on a more and more frequent basis.
Info:
iMac
I have a 2009 27" iMac, running Windows 7 x64 with BootCamp, and I'm having a problem when running Windows for more then 5 minutes.
After running it for about 5 minutes, the fans go CRAZY, the system doesnt get too hot though, the LEFT side of my screen starts flickering brightness, while the RIGHT side starts flickering colors. After a few more minutes of this, my screen goes completely black, I know the computer is still running, because I hear my music and the zombie killing me in Minecraft, but my screen, keyboard, and mouse dont seem to respond. I have double checked all drivers, I have updated BootCamp, and my next step was to reformat the drive, but that is my LAST resort.
Info:
iMac 27" 2009, Mac OS X (10.6.6), Running Win 7 64x on Bootcamp
This 5 year old iMac makes the seek optical drive sound when switched on, but does not chime, but I can hear the hard drive going afterwards.
The screen just stays black, not a flicker.
The problem is that it is located in a small pretty isolated town in NE Brazil, I will be going back out there later in the summer so if anyone has any helpful ideas it would be most welcome. Fortunately we have a full CCC clone of the hard drive and a working MBP so we haven't lost anything, but it would be very good to have it working again.
Does it have a socket for an external monitor, I really cannot remember, as I have not seen it since November, I know the old round iMacs had one.
The nearest Mac store is probably in Rio or Sao Paulo which are a good day travelling by car and plane so there is no chance of getting it there.
Info:
iMac, Mac OS X (10.4.11)
When I turn it on it comes up with the white screen and then the apple logo shows and then the loading symbol comes. The screen then goes blue for about 30 seconds and then the screen goes black. Code starts to come up...Here's some detail on my IMac: 17" 1.83Ghz
Info:
iMac
I Upgrades to Lion last year. Two months ago, suddenly the screen of the iMac went black. I tried to boot but it didn´t. After waiting one day, it worked and i made a backup and I installed Lion again but this time not updating.It worked, never happened again till yesterday. The screen went black, I still could listen to the song that was playing on iTunes but after a while it crashed at all.Hours later could start the computer doing everything i read here: SMC, PRAM reset, start with D, with shift.... and i made the backup but when i was going to install Lion again it went black again and I couldn´t restart my iMac.I´m afraid it´s the NVIDIA card, but i can´t be withouth the computer some weeks. Is there anything i can do to fix it or to boot at least?
Info:
iMac, Mac OS X (10.7.3), Lion Server
