Intel Mac :: 24" Not Booting And Screen Went Black?
Apr 25, 2012
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
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Jun 6, 2006
When I boot I get a full black screen, and:
/etc/master.passwd: No such file or directory
/etc/master.passwd: No such file or directory
-sh-2.05b#
I have tried fsck -f and it runs, I get the response The volume Macintosh HD appears to be ok I type "reboot" and it starts rebooting again and I get the loop of:
/etc/master.passwd: No such file or directory
/etc/master.passwd: No such file or directory
-sh-2.05b#
Is there any way of fixing this problem? I am running OSX 10.3.9 on a 17" iMac.
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Feb 13, 2012
A few times now, maybe once a month, I've restarted my (first generation, 2006) Macbook and gotten nothing but a black screen, while the computer seems to be continuing to boot in the background. The boot-up sound plays, and if I leave it to finish, the screen goes from black to a dull grey, and I'm able to shut it down by hitting the power button and pressing Enter, as if the shut-down dialogue screen has appeared. The pattern so far seems to be that if I shut down down mid-boot, by holding the power button, the next boot will still have a black screen; but when I let the boot finish and shut down from 'within' Mac OS X, the next boot works normally. I restart the computer once or twice a week, and this only happens occasionally--but it has been happening repeatedly.Â
Info:
MacBook, Mac OS X (10.6.8)
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Jul 10, 2010
My MAC powerbook was working fine yesterday! I shut it down last night and when I tried to boot it up this morning I get: the booting "sound" and the grey screen after which the screen turns to black and in the top left-hand corner
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Sep 1, 2014
My macbook pro late 2009Â (10.6.7) when i press the power button it turns on, then it turns off by itself and then on again and gets a black screen and nothing more no booting sound and i just hear the fans or the Hard Drive going...
Info:
MacBook Pro, Mac OS X (10.6.7)
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Jun 19, 2012
I have a MacBook Pro Core 2 Duo 2.5GHz/250GB HDD/2GB RAM that won't turn on, unless I leave the power button pressed, in which case, as you all know, the computer turns off again. It started about 3 days ago. Set the computer to sleep, shut it closed, took it to another room and opened it. The MBP gave me the blue screen, then black and then... nothing. At first I thought it was the HDD, but now I'm having second thoughts. I now think it's the cpu fan.
Info:
MacBook Pro, Mac OS X (10.5.8)
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Nov 22, 2010
Just installed Windows XP using bootcamp and usually no problems switching between operation systems. Recently started using an USB modem for my wireless internet connection. Internet works on both Mac and windows through the modem. Now the problem is whenever I restart or switch on my computer, it shows a black screen if I choose windows partition to boot. No problem if I start through mac partition. If I unplug the USB modem, everything goes fine and I have to plug the modem after starting windows. Is there any solution so that I can permanently plugin the USB modem and avoid booting problem?
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Nov 20, 2009
what can I do about his to boot back into OS X again. Holding down buttons (eg option) will not do anything.
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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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Oct 11, 2009
This only happens when I choose to boot into windows. The screen sort of hangs for about 20 seconds in a black screen with an underscore at the top left corner before even starting to boot into windows. I know its normal for this to happen for like 5 seconds tops, but this is happening for about 20 seconds and its dreadful trying to boot into Windows 7 because it takes so long. When windows is done starting up i don't even get any messages saying startup failed or something like that. This is so annoying that I even reinstalled everything but the same thing happened.
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Apr 10, 2012
I'm trying to boot a relatively new intel iMac. I can boot to a blue screen, in which all that happens is the music that happens with the welcome video of mac OS X. Â
I currently have no keyboard to do diagnostics with because I don't have the wireless keyboard that came with the mac, nor a wired keyboard. I'm planning on borrowing a simple wired keyboard to use to diagnose the mac in verbose mode and safe mode etc.Â
The owner of the mac has done a complete reinstall, hence the welcome video music, and that hasn't worked, as the screen shows no sign of anything other than blue.
Info:
iMac, Mac OS X (10.6.8)
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Jul 3, 2012
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.
Info:
iMac (27-inch Mid 2011)
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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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Jul 3, 2012
My 24 inch iMac is not getting pass the apple logo. It acts like it's loading, but then the little progress spinner (not sure of the name) stops spinning after 2-3 minutes. It never wants to get pass that. I'm running the latest version of Lion.
Here's the specs:
3.06GHZ
4GB
500GB
NVIDIA GeForce 8800 GS
So far I've tried using disc utility on my snow leopard disc....it doesn't load. I've tried to start in safe mode...it loads about half way and stops. Oddly enough windows xp works in bootcamp. It runs okay besides when I try to move windows. I'm guessing it's the graphics card. No idea really. Here is a video I made to show you what I mean: [URL]. I've also tried installing a new 1TB HD and it still won't boot from a disc for some reason. I tried install snow leopard through the internal superdrive and with an external superdrive. No dice.
Info:
iMac, Mac OS X (10.1.x)
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Mar 16, 2012
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.
Info:
MAC 24" 2.66 mgz, Mac OS X (10.5.6)
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Mar 20, 2012
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.
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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 17, 2012
problem of getting black screen on imac running 10.6.8?
Info:
iMac (27-inch Mid 2010), Mac OS X (10.6.8)
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Mar 23, 2012
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
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Mar 25, 2012
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)
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Apr 9, 2012
Why does imac screen turn black?
Info:
Imac, Mac OS X (10.6.5)
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Apr 16, 2012
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)
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Apr 25, 2012
why is the screen flickering and then going black
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May 3, 2012
I 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
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May 5, 2012
For the past week, my screen goes black several times a day and I need to restart with the start button to restore.Â
Info:
iMac
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May 31, 2012
I have a tiny black spot on my imac screen that is only noticable when background is white.
Info:iMac
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Jun 4, 2012
Screen in complete black. Because is new maybe I am doing someting bad.
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Mar 1, 2012
When 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.
Info:
iMac (27-inch Mid 2011), iOS 5.0.1
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Mar 14, 2012
I've got a mac that powers up but just show a black screen? Any ideas?
Info:
iMac, Mac OS X (10.7)
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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.Â
Info:
iMac
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