IMac (Intel) :: Dark Screen After Apple Symbol Upon Startup?

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.

iMac, OS X Server

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IMac (Intel) :: On Startup Apple Logo Briefly Turns Red With Dark Blue Background

Jun 23, 2014

I purchased a new late 2013 27 inch iMac 3.4Ghz i5. The only thing I did after pulling it out of the box was restore Time Machine from my previous iMac. On startup the machine boots as expected, but gets interrupted by the screen turning a dark blue, and the apple logo turning bright red, for about a second or so, then boots as normal, and opens Mavericks. I've spoken to Applecare - they suggested I re-install Mavericks, which I did. The problem is still there. I've done a hardware diagnostics test - no problems. Though I wonder if it could be a faulty graphics card? As far as I'm aware there are no other issues with the iMac. The machine is under warranty but would love to solve this if possible.

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Software :: Intel IMac Won't Boot Up - Freezes On Grey Screen Or Apple Symbol?

May 14, 2008

Got my 24" 2.4GHz iMac on release last year, with Tiger. Installed Leopard on it on release day.

The problem I have is that ever since a botched Boot Camp installation I've had endless problems with certain applications hanging during their startup (notably Image Capture) or refusing to quit (notably iTunes). Force Quit doesn't resolve these issues. Restarting doesn't work because Force Quit can't quit them so I have to pull the plug or otherwise force a shutdown.

Upon restarting I either get the grey screen that instantly appears, or, if I've pulled the plug and left it for a few minutes I can get to the Apple symbol but no spinner or any further start up action. Occasionally I get lucky, get back up and running, and all is well until the next crash.

All this started happening when I decided to try installing Windows on Boot Camp again. I've had it on here a couple of times since Leopard was released but usually end up deleting it eventually because either the Windows installation gets bogged down or I get bored with it and never use it. Anyway, this time, using the same discs I've always used (and yes, it's SP2, so it should be fine and anyway it's worked at least twice before) when I got to the 'restart to continue installing Windows' bit, I got the white screen and nothing happened. After an hour or so of praying and restarting endlessly trying to get a response, I finally got it to recognise my OSX installation and was up and running again. The Boot Camp volume didn't appear to be there and Disk Utility revealed zero problems whatsoever. Everything looked fine until these recurring hangs, refusals to quit apps and screwed up start-ups.

Any ideas? I don't have the expensive Apple support, but it's less than a year old! Of course, I realise that this means nothing to Apple, who seem to think I should pay a premium in order to have my machine warrantied by them for more than 90 days. Grr...

If I get it up and running I'm thinking I should just wipe the ENTIRE system absolutely clean and re-install Leopard and then use my Time Machine backup to put all my data back on (pricelessly valuable as I use the machine to work on my photography with), but I'm concerned that if there's a flaw in the System somewhere, a corruption, that installing the Time Machine backup will just reintroduce the error. On the other hand, if it's a deeply embedded and invisinle partition corruption from the bad Boot Camp installation attempt, that should be fixed by wiping the entire drive to reinstall Leopard, right?

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IMac (Intel) :: Gray Screen With Flashing Question Mark / Prohibitory Sign And Apple Symbol

Dec 10, 2014

I'm selling my old iMac and while cleaning the hard drive it froze. I forced shut down and when I turned it back on a circle with a diagonal came up initially, followed by flashes of that, a question mark and the apple symbol. Now it won't get past the grey screen and the flashing symbols.  

iMac, Mac OS X (10.4.11)

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IMac PPC :: Screen Has Gone To A Very Dark Grey On Startup?

Mar 16, 2012

My screen has gone to a very dark grey on startup. I can faintly make out the desktop icons, but it is about 98% black. Everything else seems to be fuctioning. iMac G417" Flat Panel 17" [Pixar-lamp style] OS 10.4

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MacBook Pro :: At Startup Screen Very Dark So Unable To Login As Cannot See Arrow?

May 9, 2012

At start up the screen is very dark, so I can't log in to my account, because I can't see the arrow. I tried to make the screen more bright with fn F2, but that doesn't work. How can I have a bright screen at start up, so that I can see what I'm doing?

MacBook Pro, Mac OS X (10.7.3)

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IMac (Intel) :: No Apple Logo Appears During Startup

Aug 28, 2014

I am fixing this 2007 iMac for free for an autistic child. Apparently, changing computers for someone that is autistic isn't ideal. I don't have the history with this iMac, just that it isn't working. They supposedly did have the hard drive replaced? It sounds like a dvd is inside it when it starts up, could be the installation dvd?Either way, I have not seen it before where the Apple logo refuses to show on the start up screen. It just stays gray.  

1. I've tried zapping the PRAM. Didn't have any changes. 

2. I tried starting up in safe mode, but getting passed the apple logo is required for that 

3. I tried single user mode, but getting passed the apple logo is required for that 

4. I tried holding the c key to start up off of the dvd, nothing happens 

5. I tried holding the mouse button (and cmd, opt, f, o) to manually eject the dvd during start-up. 

iMac, Mac OS X (10.6.8)

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OS X Mountain Lion :: IMac Will Startup To Gray Screen With Apple Logo And Progress Bar

Dec 6, 2014

IT does this every time, but when I do command and r or other such keyboard commands, it goes I the recovery pahe with no problem. Whenever I tried erasing the iMac to reset it, it said the disk was locked.

iMac, OS X Mountain Lion (10.8.5), April 2008 model

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Intel Mac :: Cannot Start Up - Apple Symbol Appears With Timer

Jul 1, 2012

When I try to start my new iMac, the apple symbol appears with the timer and doesn't do anything else. Been through the manual trying all suggestions in there, new with apple macs - 2 weeks old and a start-up problem? Not impressed!!


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IMac :: Intel Imac Stuck On Blue Screen At Startup

May 17, 2009

My friends alu intel imac is having a problem. When he power on the machine the computer gets stuck on a blue screen.

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IMac (Intel) :: Freezes At White Screen During Startup?

Jun 2, 2014

I was off of my iMac for an hour or two so my screen saver when on.  I went to wake the computer and it was frozen.  I tried using the keyboard and mouse to wake up the computer from the screen saver, but it would not work, so I powered the iMac down manually from the button on the back.  I let it sit for 15 minutes, then I tried to start the computer up again.  Now at start up, I get to a blank white screen with the spinning moving pin wheel, and that is it. 

IMac 2Ghz Intel Core Duo, Mac OS X (10.5.7)

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IMAC Won't Boot Up / Just Stops At A Grey Screen With 'NO' Symbol

Mar 17, 2012

My IMAC will not boot up. It was working fine this morning and I was working away then suddenly a MUSIC file wouldnt play, so I restarted the computer, and this is what happens now...It starts out like normal but after a period of showing me the APPLE logo it goes to the "NO" symbol. url...

iMac, Mac OS X (10.7.3), Snow Leopard

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IMac :: Dark Spots On The Screen

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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IMac (Intel) :: Grey Screen With Spinning Wheel At Startup And Won't Go Away

Dec 10, 2014

I Have a grey screen with the spinning wheel at startup and won't go away


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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

iMac, Mac OS X (10.6.8), about a year old

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Intel Mac :: Screen Dark On One Side Of 27'?

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

iMac (27-inch Mid 2010), iOS 5.1

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Hardware :: IMac G3, CRT Monitor Doesn't Show Dark Colors Well - Dark Clors Appear Black

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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IMac :: New 24inch Screen Goes Dark And Freezes?

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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IMac :: Screen Too Dark When Playing Video?

Jan 13, 2010

I have a late 2007 20" Alu iMac and when ever I watch videos they appear too dark. I have tried changing all the settings I can find and nothing helps.

Its ok if I use VLC as I can change the brightness within the program but anything else ie quicktime, youtube or other embeded video always looks way too dark.

Has anyone else encountered this or is there something out there that I can do do brighten the video image?

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IMac :: Dark Band On The Bottom Of The Screen?

Jul 18, 2010

So after giving up the new iMacs after two replacements about six months ago for yellow screens......I thought I would try again.

The good news is that the white is very uniform with no yellowing. The bad news is that it has this dark band across the bottom of the screen just above the dock.

So I am basically in the same spot I was six months ago. Replace the unit for a new one, replace the screen, or just live with it. Maybe I am being too anal but for $2,500, I shouldn't have to live with anything but a perfect screen.

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Intel Mac :: 24" Screen Went Half Dark?

Mar 7, 2012

My 24' Imac screen went 1/2 black on top the bottom is fine, can I fix this myself?

iMac, Mac OS X (10.5)

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Intel Mac :: Screen Went Dark After Power Interruption?

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!

iMac (20-inch Early 2008)

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IMac :: Screen Burn In - Dark Patches On Display

Dec 4, 2009

How many others on here have an imac with burn in problems? I have a tone! I am so unhappy with this product. I am happy I have the extended warranty, I am now getting a new monitor for my imac.

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OS X :: IMac IC2D (plastic, Not Aluminium) Screen With (dark Corners)?

Feb 13, 2009

I have a question (whoa). I have an iMac Dual Core, bought in mid-2007 (it's the White Plastic version, not the newer Aluminium with the glass-display).

For some time now I had some dark spots, kind of shadow like in the bottom left corner. I wasn't bothered too much by them, but they got bigger, and now I have these in all of the corners except the bottom right one.

Anyone got any ideas how to get rid of them? (no, no three-year guarantee plan ... stupid me), or if not if it'd mean to replace the whole display or if it's just some cleaning (I talk money-wise here ...)

I attach two not-so-good pictures (the background is plain-white and the image is a bit enhanced ...) so you guys can see what I mean.

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IMac (Intel) :: Keeps Auto Typing A Symbol Into Search Engine

Jun 21, 2014

Mouse is flickering and MC keeps auto typing a single symbol continuously in the search engine

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IMac (Intel) :: Mid 2011- Dark Curve On The Left Side?

Sep 10, 2014

Just noticed the left side of my screen has a dark curve. What to do. 

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IMac (Intel) :: Screen Flashes Pink With Yellow Apple Just After Start Up

Jun 1, 2014

My screen will flash pink with a yellow apple icon just after the spinning gears has stopped when I start up.

iMac, OS X Mavericks (10.9.3)

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IMac (Intel) :: Won't Boot - Starts With White Apple Screen And Spinning Wheel?

Aug 22, 2014

Mac won't boot, starts with white apple screen and spinning wheel. Also has grey loading bar which disappears after loaded then stays at white apple screen.

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IMac (Intel) :: Screen Goes To Normal Gray With Apple Logo And Spinner Then Goes Black

Jun 5, 2014

Upon start up my screen goes to normal gray w/apple logo and spinner then goes black. Cursor is visible and still is moveable but nothing else. I safe booted and bar came up also but then back to black screen. 

iMac, Mavericks upgrade

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IMac (Intel) :: Screen Is White With No Spiral And Apple Logo - Snow Leopard OS X 10.6.8

Dec 11, 2014

Why is my  Snow Leopard OSX 10.6.8 IMac screen all white when I turn it on?  There is no spiral and no Apple logo and the desktop does not appear.  The screen is just white.  

Prior to this, we had a wind storm in our area with some power glitches today.  After one of them, the dock items disappeared and just the wallpaper was there. The colored spinner began going around when I clicked on the mouse but nothing was happening.   I unplugged it to try to reset it, but now the screen comes up all white, there's no apple logo that appears at start up and that's it.  Now what should I do?

iMac, Mac OS X (10.6.8)

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