OS X V10.7 Lion :: Screen On IMac Started To Go Blank - Only Way To Recover Was To Re-boot?
May 23, 2012
Some weeks ago the screen on my iMac started to go blank. The only way to recover was to re-boot. The problem got worse until the machine became un-usable. I tried everything I knew, including switching off and unplugging to reset the pram as suggested, but eventually took it to the Apple Store where the 'expert' reset the pram the old way holding down the cmd/opt/p/r keys on startup. Problem solved (why do Apple give bad advice to clear the pram?).
Something had corrupted the software that drives the screen. The only program that I could think might have done that was ScreenRecycler which I have now stopped using. However, the problem has started to re-appear, the only new program I have used is Audirvana which being a music program should not affect the screen.
Info:
iMac, Mac OS X (10.7.4), printer, scanner, ATVs, external hard drives, USB DAC
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Nov 4, 2009
I did a pram reset but that did nothing (I heard the initial chime and the one after the reset....still the same problem.) I'm a bit worried because I don't hear the hard drive starting up.
Some more info... Intel Imac 17" (late 2006 model), 512 mb of RAM, running 10.4 (I think). I am not familiar troubleshooting macs but I am troubleshooting PCs.
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Mar 12, 2008
I came home for lunch today, and found my Mac Mini G4 with the fan running, and a blank screen. It was obviously locked up. System has 10.5.2 with all of the latest updates. This is not my primary system, I have an MBP for that.
Here is what I did:
Force a power off/on, and I get the normal gray screen with the Apple, and spinning gear, but it never stops spinning.
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Oct 26, 2008
I have a G5 that has started intermittently booting up with a totally blank screen - not blue, no video at all. Sometimes on reboot or after resetting the PRAM it works again.
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Jan 30, 2009
I'm trying to fix my GF's Macbook Pro. This thing since day 1 has had so many little issues she's replacing it with a Dell. Anyhow, I want to try to fix the computer and I'm very good with computer hardware, just not familiar with troubleshooting Macs. The computer when turned on doesn't make a sound, it just sits at a blank screen with the power LED on the front lit solid. I have tried resetting the PRAM, resetting the SMC, and reseating the memory. I even swapped the memory.
It's the same behavior each time, just sits there, nothing comes on the screen. No noises. It does get quite warm sitting there powered on, though not obscenely hot. I can power it off with the power button as well. I have heard of trying to boot off of the restore CD or something but I feel that won't work and the problem is most likely hardware related. Nothing strange happened before this computer stopped working. It was not dropped, no water, or anything like that.
Specs are the machine is as follows:
15" Macbook Pro 2.2 Ghz Core 2 Duo, 2GB, 128MB VRAM, 120GB 5400 RPM Drive
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Apr 17, 2009
From time to time, now, on my recently-acquired 2008 2.8x8 Mac Pro, it'll boot to a blank white screen, no Apple logo, no spinning indicator. It does not have Boot Camp set up. A single press of the power button will turn it off and it'll boot fine the immediately subsequent try. The console doesn't show anything.
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May 13, 2012
All of a sudden my 13" MacBook pro (2011) takes a long time to shut down. And on boot up it remains on a blank white screen where all I can do is move the mouse around. It may or may not boot to the desktop. At the moment I'm leaving it on sleep and it performs fine, apps load like normal but I'm afraid to shut it down incase it won't boot up again. The shut down takes so long that I need to hold the power button to shut it down. I've read around that it could be hardware failure but like I said I have it on sleep and it performs fine when I wake it.
Info:
MacBook Pro (13-inch Early 2011), Mac OS X (10.7.4)
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Dec 8, 2014
My MBP 13" Retina just stopped rendering the screen. On boot, it chimes and the back light comes on but that's it. At first I thought it was non responsive, but when I connect an external monitor I can see that it works fine. It's just the primary display that doesn't render anything (only backlight with blank, black screen).Â
A few details worth knowing:
1) Last time I saw my primary display work, I had 10% battery left, I shut the lid. Next time I opened the lid, around 2 days later, it was just blank and backlit. I did a forced restart and from then on it only gave me a blank backlit black screen.Â
2) Works well if i boot it with an external monitor connected. when the chime comes on, I immediately shut the lid and use only the external display with external keyboard and mouse.Â
3) Video gets laggy when I use it on dual monitor mode (not the case before this problem happened). I boot up the macbook with an external display connected. No video on both screens. I have to login blindly before the second monitor gets video. Primary display still doesn't render anything, albeit showing a lighted blank black screen.Â
4) I've already tried resetting the PRAM. didn't work.Â
Info:
MacBook Pro, OS X Yosemite (10.10.1)
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Sep 22, 2010
White MB about three years old. Was watching something on Hulu and HDD started making strange noises and screen froze. Forced reboot and only got white screen. Couldn't even get into single user mode. Got a new WD hard drive thinking it would fix the problem. Put in my backup of the Install Disk (lost the original like an idiot) but all it shows when I hold down the C key is a large blinking folder icon with a question mark on it. Still can't get into single user mode. I may have screwed up the backup of the Install Disk or am using the wrong DVD since I forgot to label it.
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Nov 24, 2008
My Macbook will not boot up. I am now faced with a plain grey screen with no apple logo, chime sound or activity wheel appearing.
Like most Macbook users I know, I rarely go through the booting up process from day to day use unless the System Updater requires a restart, but this time there was a different reason for me restarting the system.
When I was expanding an archive with Stuffit Expander, the app froze up. I went and deleted the archive file knowing that it was corrupt, but I did this too soon before the app had a chance to close down properly. It became stuck as a process that couldn't be closed down. Its dock icon didn't have a 'Force Quit' menu option so, I chose to perform a restart.
The Macbook went through the startup process but took a very long time. (I guess after reading around the forums this was fsck attempting to scan and repair the potentially damaged hard drive). I mistakenly performed a hard reboot thinking the system had hung.
The second time, it displayed the apple logo and wheel for about 2 minutes before showing a circle with a line through it and no further activity. When I rebooted again the apple logo and wheel were displayed with the hard drive activity audibly in a repetitive on and off state. I left this for about 15 minutes before deciding to turn it off. At the present moment it starts up to a plain grey screen as mentioned at the beginning. I tried experimenting with removing the extra 2gb memory module but there was no difference with or without it. I tried resting the NVRAM with Option-Command-P-R but all I got back was the startup chime (i.e. the muted volume I had it at has now reset to the default level).
When Option is held down on booting, the mouse cursor is visible over the same blank grey screen. No volumes show up. I have selected the Finder Preferences option to hide all volumes from showing up on the desktop, but I doubt this would affect volumes from showing up on the boot up screen.
I have tried booting from the 10.4 CD that came with the Macbook and the 10.5 (retail) DVD. The 'C' or 'D' keys do not have any effect either.
I think my options now are either to try and obtain a firmware reset CD which might make it possible to recognise volumes again, or there's the possibility that I'll have to get a new hard drive. Can you suggest anything else I might be able to try?
On the subject of hard drives, if it turns out that the Macbook's hard drive is beyond repair and I need a new drive I only have a caddy for 3.5" PATA drives which I use for Time Machine. With an appropriate 2.5" SATA caddy is there any way I could access the filesystem in Windows? How else could I format the drive to the correct FS?
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Oct 4, 2008
I just bought a powerbook, and I'm trying to get it to turn on. It doesn't have a hard drive, so obviously it won't be able to get it to boot. I just want to be able to get to the flashing folder. When I press the power button, the computer does nothing, not even the fan spins. The only indication I have that it is on is the caps lock light turns on. I've tried resetting the pram, but the screen stays blank and does nothing. I don't have any ram modules in it, so it shouldn't be a ram problem.
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Nov 18, 2009
I did some reading online, and know that the flashing question mark basically means that there's either a problem with the OS installation or the hard drive itself. I borrowed a friend's Snow Leopard installation CD (mine didn't come with the CD) to try to boot from it, but it refuses to boot from the CD.
The only keyboard bootup control that does anything so far as I can tell is the alt key (using a windows keyboard), which results a long delay while booting, followed by a blank screen with a mouse cursor. Everything else just ends up with the flashing question mark. If I try to hold C to boot from the CD, it sits there for 3-4 minutes with the occassional CD whirring sound, then ejects the CD and goes to the flashing question mark.
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Dec 6, 2009
Not even a week old!! Computer was asleep for about 2 days, woke it up the same way with a few taps on the keyboard and it just started to beep. Tried to turn it off but nothing. Nothing on the screen, just beeping. Pushed the power button and beeping. Unplugged it and waited 5 minutes and pushed power button and beeping with nothing on screen. Its sunday and it hurts my stomach to think about the lengthy process this will be to get a new one or get it fixed. My wife says to call, but I tell her that if there even isn't anything on the screen then what can they do over the phone. Is it possible the memory went bad. What would cause this? Its plugged in a power strip.
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Jul 3, 2010
I need your opinions; since the 10.6.3 update my iMac has begun to freeze to a blank screen. I think this may be a sign of a dying logic board, however I question this as I don't have the freezing problem with 10.6.2. Picture of blank screen attached.
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Oct 31, 2009
For some reason, a friend of mine is having issues with her new iMac (one generation back). Here is what she emailed me about the situation:
Here�s what happens in greater detail. I quit or force quit all open applications. I press the ON/OFF button until the screen goes black. I wait several minutes and press the same button ON. I get the Apple cord sound and a blank white screen. The Apple icon does not come on; nothing happens. That�s when I close it down again and disconnect it from the back and reconnect it (a few seconds). Then I press the O/F button and the Apple cord sound AND the Apple icon come back, the system revs back up. All all is well � except for the ball coming back...
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Nov 20, 2009
Just got the new iMac quad core i7, purchased Windows 7 Home Premium and having trouble getting it to install using Boot Camp it goes through all the steps I partitioned 350 gig then formatted went thorough the install steps, it reboots and finishes the install, then reboots but nothing happens its just a black screen
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Jun 1, 2012
I'm reinstalling OSX Lion and I got as far as Command- R and the computer restarted and has been on a blank screen with a circle with a line going through it and the cursor has been spinning for about 50 min now....it never gave me an option to click reinstall What is it doing? Is it removing the current OSX?
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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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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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Jul 2, 2012
Ever since I downloaded 10.7.4, a blank grey screen appears at startup. If I click on the mouse, a white square cursor appears which I can drag around and `uncover` a place to input password. Then the galaxy image appears, and I have to input password again.
Info:imac, Mac OS X (10.5.1)
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May 29, 2012
I have just got an old 2004 G5 and thrown a brand new hard drive in it. When i tried to install leopard (which I'm told would be the best operating system to use) it comes up with a blank blue screen!
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Jun 11, 2012
I just tried to update my system to the latest update release on 6-11-2012 and it fails and got stuck to a blanck screen. When I try to reboot the system I get an "unable to find driver for this platform" "ACPI".
Info:
MacBook Pro, Mac OS X (10.7.2)
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May 28, 2012
Recently My MAcBook Pro 13" was stolen. I have importan archives inside Time Machine (from the MacBook pro 13) and now I want to recover just some iles from the stolen MacBook to my IMac using Time machine.
Info:
iMac, Mac OS X (10.7.4)
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Jul 15, 2008
so i go to turn my imac on tonight and it makes the normal noise when it always turns on but the screen stays blank(light blue)....after about 2 minutes this little picture of a folder with a question mark shows up in the middle of the screen. it keeps making this clicking noise as well. ive tried unplugging everything and restarting it here is a pic of what the thing that pop ups looks like [URL]
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May 19, 2012
Screen has started to black out
Info:
MacBookPro, iOS 4.3
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Mar 28, 2008
I have a first generation macbook pro and it appears as though the screen is not as bright as it once was.
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Feb 8, 2009
I have a 15" Powerbook G4 that is about 4.5 years old. Last night the screen started to flash for about a second and then went to almost black. (there is a very very faint image remaining of the screen)... from surfing some forums, it sounds like this could have something to do with the backlight or the inverter (whatever that is?).
The powerbook seems to be working fine otherwise, I was able to connect it to my 30" (which was amusing) to archive all data off of it, so nothing was lost. Techtool diagnostics all ran fine (nothing in there to repair a display).
I suppose the basic question is if anyone knows much about what the problem is - and if its worth investigating repair vs just diving in and buying a new one...some additional info found on Apples boards, but still curious if anyone has opinions/insight towards the cost and trouble of this repair:My screen looks black, but I can see very faint graphics on it
Symptoms of this are a dark screen, but everything else seems to be running. If you get in close with a flashlight, you can usually see the image faintly.
Backlight
If your backlight isn't working, the inverter may be bad. Other parts that may be bad are the display or the logic board. If your backlight fails intermittently while moving the display, the problem is with the inverter cables. Otherwise it is impossible to test for damaged parts without replacing them one by one. If you are comfortable taking apart the display assembly, replace the display inverter first, then replace the LCD. If you are not comfortable with this, you can replace both parts at once by replacing the display assembly (which contains both components). If this still doesn't solve your problem, you need a new logic board.
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Jun 6, 2009
This i dont think is serious and i am not sure what is causing the problem, basically my Alu macbook 2ghz' screen has started flicking, this has only started to happen since i installed 10.5.7 but only happens when my power adapter is in, it doesn't happen all the time but basically when i put my adapter in and the light isn't on then my screen starts to flicker.
It does stop flickering after i remove the charger and put it back in and then the light on it works.would you say its a problem with my screen/charger/something else?
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Aug 7, 2009
Am I the only one having this bug? I have a 2009 24" iMac Radeon 4850 and after installing the 10.5.8 combo every time the machine boots the brightness is set to maximum.
I tried zapping the PRAM and that didn't help.
The other problem I noticed is that my startup network shares, even though checked to "hide" pop up finder windows at boot time. It never did this before (even without hide being checked).
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Aug 11, 2009
I have an Intel Mac Mini that I use with a Viewsonic DVI LCD. My problem is that the gray boot screen doesn't ever appear. The computer starts up, but the display doesn't come on until I unplug the monitor and plug it back into the mini, then it comes on and I see the login window. Anyone have any tips for me? I've tried the cmd-opt-p-r, and resetting it via plugging in the power while holding the power button, but to no avail.
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