Intel Mac :: Old Has Black And White Lines On Screen?
Jun 12, 2012
I've had my iMac for over 2 years now. Last Thursday, I left it on for more than 3 hours and it started having black and white verticals lines appearing on the bottom and top part of my desktop and the cursor. Yesterday, when I checked it again, it was still there! What can I do to fix it, WITHOUT going to a Apple store?
Info:
iMac, iOS 3.0.1, URGENT!
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Mar 5, 2012
Simply using my Imac for watching tv on the web, Hulu, and left to help my wife get groceries in the house. My wife checked her email and closed Safari.
I came back in roughly 10 minutes from when she shut down Safari to see a black screen with white pinstriping, and the mac being totally unresponsive. Shut down and rebooted, sent off the report to Apple, and am now here with seemingly no problems.
Needless to say, as a photographer this computer is just about as important as my camera. Should I be worried? discovered the thread to this issue, which appears to be quite extensive.
Info:
iMac (24-inch Early 2008), Mac OS X (10.6.8)
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Jun 17, 2014
I recently got my laptop back after the logic board was replaced and now black lines with white text keep appearing on the screen. When this happens I cannot do anything except hold the power button in to reset.
Info:
MacBook Pro, OS X Mavericks (10.9.2)
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Jul 22, 2008
So for the first time in over a year since I purchased it, my iMac crashed twice.The first time was this morning, i went to do something and the screen went black, and my secondary display got black and white lines. I had to restart. And the boot screen with the apple logo hung around for a while.
Then, later on the screen went whacky after trying to wake it from sleep (not full sleep just display sleep) and had a bunch of moving lines and then I couldn't see anything. So luckily I got a picture. After restart, it seems fine.I'll call apple care in the morning, but thought i'd try my luck here.
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Jun 10, 2012
How do I change the iTunes screen display from 'white on black' to 'black on white'
Info:
24" iMac
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Feb 3, 2012
Desktop restart shows flickering black/white screen, then black. Could not restart.
Info:
iPad 2, Mac OS X (10.6.6)
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May 3, 2012
My Mac Pro crashed yesterday after it was reading an empty DVD, and now if boot the Mac it shows this screen:I have tryed rebooting it in safe mode, does not work, I get the same screen. Tryed to use a other monitor, same problem. Now, If I press the Eject button, the disc tray will eject and if I press the volume button it can be heard.
Info:
Mac Pro
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Jun 29, 2014
When I start up my macbook pro white and black lines appear for the startup screen in bunches. After that the screen is black but the keyboard is lit up and you can still hear the sounds of turning up the volume and music can still play.
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Dec 18, 2009
There's some known documented issues concerning the Nvidia graphics chip in the particular model of macbook pro I have.
Basically when turning on the machine, the screen is filled with black & white horizontal strips like a piano keyboard, but thats it - it doesn't actually boot up fully at all, you cannot hear the hard drive running !
Would the hard drive have anything to do with this ?
I explained this to apple telephone support & they informed of the article
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& stated that the symptoms were linked.
On taking the mac to an apple store they ran a special 'firmware' boot up 'test' using an instore ipod to determine if it was a faulty Nvidia chip, so as to prove to Nvidia, the company funding the repairs whether it is that to blame.
Because the machine didn't even boot up & complete the 'test' they couldn't say whether it was the graphics chip - so 'no free repair' under extended warranty & the final answer was as usual ' buy a new logic board' that will cure it !
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Jun 23, 2012
This happens every time when I turn on my computer or restart. Otherwise all other computing and display are fine once I get passed the log in screen.
Info:
MacBook Pro, Mac OS X (10.7.4)
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Apr 29, 2012
Trying to view a pdf in a government website using safari. I get a black screen if I switch and use firefox as the web browser I get a white screen. I have no problems viewing the page on a P.C. machine it works fine.
Info:
Mac OS X (10.6.8)
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Sep 10, 2014
My screen had black and white vertical lines pop up over the entire screen then went blank and now at a restart the password then loading spinning circle happens then I get a blank white screen.It's a 27 in Intel iMac that is about 2011/12 purchase
Info:
iMac (27-inch Mid 2011), OS X Mountain Lion
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May 9, 2012
My mac screen is frozen with white fuzzy lines going across the screen. I shut it off and turn it back on but it still remains white fish lines on the start up screen. I've tried revolting it, it works sometimes but now its stuck at the starting screen. I have been at this for 2 hours to try and fix it but nothing has changed about the screen.
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Apr 1, 2009
I have an IMac and first the screen went green not long after I got the power supply changed and now lines are appearing
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May 15, 2010
The screen started by having the occasional 'white out' where it would be in use and a white screen would fade in for a few seconds then usually return to normal.
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Aug 27, 2010
Since yesterday, my screen has been acting really wierd. Every few hours, the screen goes all fuzzy with a bunch of white lines on it, and it becomes completely unusable. It only happens for a few seconds each time (fortunately, it's fine right now), but it's kinda got me worried because I need to keep this computer for 2 more years before getting a new one, and I can't afford to fix it. I can't stop using it because I need it for school, so if it breaks, I'm completely screwed.
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May 8, 2012
Running normally and if I adjust the screen angle it goes white with lines.Just started happening. 10.5.8 about 4 years old
Info:
MacBook
Pro, Mac OS X (10.5.8)
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Jun 27, 2014
i was working on my macbook pro and suddenly the screen went white with lines through it. i tried a reboot and after the Apple icon shows screen goes white and does nothing.
i was on wireless so wen back and connected through wire and left over night in case it was heat
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Jul 13, 2007
I put my PowerBook to sleep and left home with it about an hour ago. I just opened it and it woke up but the screen was black. I turned it off and back on. The white screen with the apple and progress wheel came on for a normal period of time, but then the screen went all white and there were several uneven horizontal lines across the middle and froze there. I forced a restart and the same thing happened but this time I got the semi transparent window that says need to restart. I did that and I got the same screen without the message.
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Jul 19, 2010
I've had my MBP for about 2 weeks and yesterday a white vertical line about an inch long appeared on the right edge of the screen.
It went away after a restart, so I thought nothing of it, but now another one has appeared. Picture:
They mostly appear only on the desktop, but occasionally crop up when I'm running apps.
Is this something I can fix or is it a video adapter issue? I have searched and come up with some similar motherboard issues but they are mostly older macs.
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May 31, 2012
i have a MacBook Pro..I had my track pad replaced recently..I am not sure if it has anything to do with my screen, however, the screen is randomly turning gray and white with lines and fading out..What does this mean
Info:
MacBook Pro, Mac OS X (10.5.8)
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Mar 13, 2010
My MacBookPro 15" 5.3 worked fine until today, All the blacks (rgb 0,0,0) on the screen become red stripes.
When I boot into Linux or Windows the same problem appears, so it's probably a hardware problem.
I have no expensive adaptor to connect to an external lcd screen, so I don't know yet if the problem is in the mac screen or in the cabling or somewhere else...
Here are 2 screenshots of black squares a drawed in Illustrator, one taken on the mac (cmd + shift + 3)
one taken with a camera (where you can see the red lines)
I want to avoid the MacStore as I want to avoid missing my laptop for a month...
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Apr 18, 2010
See the pictures. They look almost like ink but no ink has been near the screen.Tried cleaning the screen but with no luck. It lies on top of any open window.
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Jun 15, 2010
recently i've been having problems on my mac as its begun to slow down drastically over the last few days and i've been seeing these strange outlines around some of my programs (see image).
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May 21, 2012
My White iMac 24" won't boot up anymore.I noticed he was running slow lately and in the browser he crashed regularly so I need to reboot.Using the power button I have to shut him down and reboot again, only, the last time, he refused to boot up.Instead I got a solid black screen, and a solid white power light at the front... When booting the only thing I hear is a little buzz and then, nothing... Several support forums said this wasn't very good and it might be the last breath of my iMac. Trying a few things, hoping they would bring him back to life couldn't help:
- Power on with "c" kept down
- power on with control+option+p+r was something I read
- Power on with "shift" kept down
nothing would work.
Info:
iMac, Mac OS X (10.6.8)
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Mar 25, 2009
The other day the screen started blinking randomly. It'll flicker for a few seconds and then go white with vertical grey lines for a few seconds. Then it will go back to normal. There doesn't seem to be a pattern to it. Sometimes it will go through that process for five minutes and then stop. Other times I can be working on it for hours and nothing will blink or act screwed up.
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Mar 12, 2008
Sometimes my MBP gets these faint black lines that seem to start at the bottom on the screen and fade away as the near the top of the screen. I took a picture. Anyone know what causes these?
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Dec 9, 2010
Just received the new 13" macbook air yesterday and today have noticed some very thin horizontal banding lines across the bottom portion of the screen.
Has anyone else noticed this, or check to see if your one has this problem.
It is quite subtle but it makes the icons on the dock look as if they have a card like effect through them.
Easiest to check if you make your screen wallpaper the dark grey colour.
On this the top part of the screen seems consistent, but at the bottom part there is very thin white horizontal lines. I tried updating the software, but it seems to be the same - looks like a faulty display may have to send back,wondering if it could be fixed with a software update.
The strange thing is black and dark colours do not produce the effect it only shows up on greys or medium contrast colours like blue.
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Oct 19, 2009
my macbook pro has been freezing and crashing lately. the screen ends up looking like this: [URL]
i have checked/repaired disk permissions.
not sure what could be causing this problem.
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Mar 11, 2012
My MacBook screen has started to black out. I have to click the brightness button to 0 and then click to 3 bars to see/read the screen. Any higher brightness blacks out the screen within seconds.
Info:
MacBook, Mac OS X (10.6.8)
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