Intel Mac :: OS X Screen Randomly Goes Dark
Feb 4, 2012
my screen is just randomly going dark. its not shuting down - just seems to go to sleep but nothing I do wakes it short of turning the power button off then on. When I do that it quickly comes on again and seems to work fine. Seems to be happening with more and more frequency and is not particular to any software. I've read the boards here - I'm not a gamer ( no games on this computer) I'm a photographer with lots of files and I use photoshop alot. Yesterday I was on you tube and my screen went dark again but the video was still playing - I could still hear it. In fact, I could hit my mouse to stop and start the video but I couldn't see anything. Hardware Overview: Model Name: iMac Model Identifier: iMac11,1 Processor Name: Intel Core i7 Processor Speed: 2.8 GHz Number Of Processors: 1 Total Number Of Cores: 4 L2 Cache (per core): 256 KB L3 Cache: 8 MB Memory: 8 GB Processor Interconnect Speed: 4.8 GT/s Boot ROM Version: IM111.0034.B02 SMC Version (system): 1.54f36
Info:
iMac, Mac OS X (10.6.8), about a year old
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Sep 9, 2014
My MacBook is from 2007, so it is old and has its problems.When I turned it on one day, it was all normal, and randomly the screen got so dark, it looked like the computer had shut down on me. I knew it was still turned on though because the little light was indicating that it was on and it was still making the cd drive/booting up sounds.
After a while, I noticed that the screen just went very very dim, because I could still slightly see the webpage I was on. Turning up the brightness of the screen did nothing, same with restarting the computer.
Sometimes the screen would come back to the normal brightness, until I would go to do something on the internet and it would go very dark again. It's so unpredictable, I don't even want to deal with it anymore.
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May 5, 2012
My iMac Screen on my left side darker than my right side but it have been having this issue with my screen brighten up and down by itself from day one. Purchase my iMac about 13 months ago
Info:
iMac (27-inch Mid 2010), iOS 5.1
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Mar 7, 2012
My 24' Imac screen went 1/2 black on top the bottom is fine, can I fix this myself?
Info:
iMac, Mac OS X (10.5)
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May 25, 2012
My son's imac screen went dark after a power interruption (someone turning the computer off by pulling cord out of electric socket) and I can't get it to go back on. I've already tried depressing the "command, alt,p and r" keys to get a restart, and while it did restart, still no picture on the screen. Occasionally you can see white staticy lines, but mostly it is just dark. I've seen the suggestions to update software and back up data but that isn't possible as far as I can tell because I can't see anything on the screen - it is totally dark!
Info:
iMac (20-inch Early 2008)
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Jun 8, 2012
Why did my photo booth randomly go dark?
Info:
MacBook Pro, iOS 5.1.1
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Jun 3, 2014
I press the power button, apple symbol appears then "thinking circle" the goes to dark screen where the only thing I can see is my mouse curser.
Info:
iMac, OS X Server
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Mar 7, 2012
my 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)
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Mar 20, 2012
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
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Jun 2, 2014
I have a 27" iMac. Just recently, the screen has begun to randomly shut off. I then have to squeeze the power button, followed by a click of the mouse. This will bring me back to my password screen. Sometimes, that would be it, other times, it will do it repeatedly, for no reason, and then settle down.
Just for those of you who are bound to ask me about my Energy saving settings: Computer to sleep – Never. Display to sleep – 15 min.
It seems to me that this could be a hardware issue, but just incase any of you have had any experience of something similar, I thought I would ask.
Info:
iMac, OS X Mavericks (10.9.3), 27: iMac 2.7GHz Core i5
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May 19, 2012
The screen blanks out randomly, everytime I need to turn into sleep mode and then wake it up again to turn the screen back
Info:
iMac, Mac OS X (10.7.4), mid-2011
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Jun 16, 2008
I tried to use some software to test the display. I found when the screen goes to completely dark with the backlight on, the bottom side of my screen is brighter than other parts.... have u guys met any problem like that, or is this some problem with my MBA?
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Aug 2, 2010
I have a problem with my MacBook screen. Everytime I try to turn on the MacBook, the blue screen appears for a second and then everything gets dark (but I can see that the computer turned on normally, it's just the screen that gets almost black, without light). Sometimes only the right side of the screen is blue and then gets dark just like the left one. I was looking for the problem and I perceived that the left side seems to be loose and I can't fix it. What should I do?
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Aug 28, 2010
I have a late 2006 Macbook, and my dad has an early 2009 Macbook. I was comparing the two today and noticed that there was a significant difference between their LCDs. My dad's Macbook has a lighter, more normal display. While mine has a yellow tint to it and is darker. Both computers were on the same display profiles and both had the same brightness set.
Is this just how LCDs are as they age? Or is mine really not supposed to have that yellow tint? The new Macbook is on the right in the pic.
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Jan 1, 2010
I can barely see digital pictures and the likes. But websites and such i can see fine so long as the colors are light and looking on this site... [URL]
the first image i absolutely cannot see, it is 100% pitch black.. the other bellow it shows up just fine. But the two left/lowest squares on the color table on the very bottom the page both appear the same shade of pitch black.
I can see light but not dark. I tried callibrating and adjusting brightness and contrast.
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Feb 22, 2010
i have a mbp from 2007 and it seems my screen has grown quite dark! anyone else have this problem? what does one do?
It also has some "splotches" a patch or two of discoloring.
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Nov 29, 2010
My iMac has these dark spots on the screen and I wanted to confirm that it is a hardware issue before I make an appointment with an Apple genius. I thought it was dirt, but cleaning it didn't do anything.
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Sep 22, 2009
I have a prob with my MBP and wondered if anyone had an idea what the problem is?
Today the screen just goes black.. when i turn the backlight up and down i can see some difference but no picture on screen.
The mac book is still on and music playing.
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Feb 17, 2012
I bought an Imac 27'' like 6 months ago, but my screen seems to have some dark spots in the corner, when I put any white image, on that spots it shows like the screen were dusty but is not, at the same time in the middle screen when if Iput some black image some pixels show lighter than the others.
Info:
iMac, Mac OS X (10.7.1)
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Apr 22, 2012
Late Model 2010 Macbook pro, opening screen from closed position allows the screen to turn on as normal, but two seconds later, goes to complete black. Temporary fix includes hitting F1 to lower brightenss (if the screen was at full brightness) or F1 or F2 (if screen was not at full brightness) changing this brightness level brings back screen to full brightness -1. this problem seems to be pretty prevelent and related to the nvidia card ro something simialr. are there any known fixes? will apple acknowlege this. this just started happening to me a week or so ago but i've seen articles are far back as early 2011 with the same symptoms.
Info:MacBookPro, Mac OS X (10.7.2), 2.66 GHz ,i7, 8gb ram, 500gb hdd
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Jun 15, 2012
My MacBook has suddenly gone dark. It charges fine and the battery lights show there's charge. The screen is very dark when powered up? When I turn the brightness down fully, then go to turn it up the screen lights up for a second then goes again?
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Dec 12, 2014
My MacBook Pro's screen has been going black recently, sometimes is pops back up and sometimes I have to shut down and reboot. But while the screen is dark the computer seems to be functioning (music still playing, sounds from touching keys randomly in the dark) I recently upgraded to Yosemite - coincidence or is my 6-year old Macbook just getting on in years?
Info:
MacBook Pro, Mac OS X (10.6.8), Mail 4.6
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Aug 26, 2014
I just bought the latest and greatest 15 inch Macbook Pro with Retina Display in mid-2014. Every once in awhile, my screen will go dark. When I hit the touch pad, the cursor will show up and will move, on a completely black background. At that point I panic and start depressing the touch pad, when that doesn't work, I try depressing the on/off key; which does not respond at first, but finally the screen returns to normal.? NOTE: My operating system is OSX 10.9.4.
Info:
MacBook Pro with Retina display, OS X Mavericks (10.9.4)
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Dec 6, 2014
My screen is very dark and it wont change! what do i do, i have to point a flash light at it to partially see the screen.
Info:
MacBook Pro
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Feb 25, 2009
The new Macbook pro 17" seems to have a very dark display. I was in two Apple stores in, one in NYC and the other in Whiteplains and both stores had the new machines displayed. The screens were substantially darker than the 15.4" LED version. The preferences did not seem to help because the machines did not provide a selection between power save and high performance. Does anybody know anything about this, or should I just assume mine will be delivered with a dark screen? The screens were glossy in both stores, NOT anti-glare.
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Jun 14, 2007
I got a cheap 1.42ghz 512mb RAM, 14" screen G4 ibook because it had a broken hinge. I tore apart the laptop and replaced the hinge (screen frame) and put it back together. The screen wouldn't work. I opened it back up and found that the video connector was lose, so I connected it and put it back together. BAM!! Everything worked... everything except the sleep feature when the lid is closed. So I opened it back up, took the magnet from the old frame and put it on the new frame (which was missing its magnet).
When I turned it back on the screen was blank/dark. It showed all the signs of classic inverter board burnout (dark screen, can be seen with flashlight from behind, can be seen on external monitor), so I ordered an inverter board and when it arrived, I swapped it out. Still nothing. The next idea would be the backlight, but that doesn't make sense... I'm trying to figure out what might have happened to make the inverter/backlight go from working fine to not working when all I did was removed the screen back case, screw on the magnet and close it up. I have done a bunch of digging around under the hood and am wondering if anyone knows of a possible ground wire, other connection, easily broken wire, or other issue that might have happened. I'm thinking that it might be one of the power wires that goes into the inverter. It might have broken inside the shield, or maybe I was sold another bad inverter board.
So:
Assumption 1: one or both inverter boards are good.
Are there any connections other than the inverter data/power cable from the mobo and the cable from the inverter to the backlight?
Does anything else (backlight, etc) have to be grounded? Where are these groundings?
Would anything else give the same symptoms except the inverter?
How can I test the backlight? I heard that there are two lights in these machines, so if it was one of the florescent lights, only 1/2 the screen would be dark.
Assumption 2: Neither board is good and that is the problem.
How can I test the inverter board (short of an osilascope) to see if it's working?
Is this a good assumption?
I'm about stumped right now and haven't found any direct help on forums. I'm hoping someone in the Mac community has run into this or has an idea about what could be going on. I'm really hoping that I missed something like replacing a screw that is also a ground or something along those lines.
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Jan 14, 2009
dread going to work and use pc all day. anyway the only issue i have is every so often i will be working away and my whole screen goes blank for a second,,freezes. I have to tap the mouse to get it to come back,
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May 16, 2009
I dropped my mac powerbook from a couple of feet and now the backlight wont go on...everything else seems fine just really dark screen...dont know what to do...is that expensive to fix?
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Jul 20, 2009
I have an MBP about 2 yrs. old. This morning when booting up, the computer made the chime sound and appeared to turn on but the screen stayed completely dark. I tilted it around and tried to see if the backlight was just dead, but there appears to be absolutely nothing on the screen. Furthermore, the little light that normally pulses while the computer is sleeping is on, though not pulsing, anyone know what's going on?
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Aug 30, 2009
I have been having this reoccurring issue on just one of my screens. My right screen/main screen on my Mac Pro 2.8GHz seems to go dark on me, only in a few programs though. Safari and Lightroom mainly as those are the ones I use mostly on that screen.
It seems to happen once in a while, when it has been running a good bit which is why I thought it was the video card, too hot or something.
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