2010 27inch iMac display trouble

My 27inch iMac isn't two years old yet, I paid apple a fortune for it, so you can imagine my annoyance, when, three months a ago, the left side of the screen appeared to darken slightly. I phoned customer service and they basically said its out of its one year warranty and there's not much they can do...grrr....
Now, to make things worse, the entire display just randomly blacks out. At first, this was for a few seconds, now it's getting longer and sometimes won't fire up at all.
I have been reluctant to walk in to an apple store with it because the nearest one is an hour away and it's a fair size of a machine.
Will the direct approach do any good? I have a supposedly state of the art machine that I can't use!!!

The display failed two months, but I had already purchased AppleCare when I bought the machine, since Amazon offered it with a significant discount. That way, I wouldn't have to remember to get it at year's end. So, most likely the one-year warranty covered that and AppleCare covered the HD going south three months ago.

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Mid 2010 27" IMac Target Display Mode has stopped working

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Today, with no obvious change, I cannot get the IMac to enter TDM. This is true whether I use the Mac Mini or the Mac Pro, and is true using either of two Belkin Cables.
I reset the PRAM and NVRAM on the IMac, but this made no difference. I changed keyboards from my Bluetooth IMac keyboard to an Apple USB keyboard. Again, no improvement. I have rebooted the machine without benefit. The IMac seems to function just fine in every other respect.
Since I have no other monitor that supports the mini DisplayPort on the two other machines, I am dead in the water at this point.
The machine is a mid 2010 27" IMac, OSX 10.6.7, 2.93Ghz I7 CPU, 16 Gb RAM, 480Gb SSD and has worked well for quite a few months.
Any help will be appreciated.

When the display only shows the background, it's working in extended desktop mode. That's a logical extension of your desktop to the right of the MBP. Drag an application off the MBP to the right and it will appear on the iMac. When you close the lid of your MBP the iMac becomes the primary monitor in Clamshell mode.
If you want to mirror the MBP to the iMac then press CMD F1, press again for extended desktop mode. These settings are in System Preferences > Display > Arrangement tab.
When the iMac is in Target display mode, you don't use the keyboard on the iMac. Use the keyboard on the MBPro.

What's the best way to transfer just my photos from my MacPro(10.6.8) to my new 27inch retina display iMac

I have just purchased a new 27inch IMac and am cleaning out files etc from my MacBook Pro (circa 2010) with 10.6.8 OS. But the photos I want to keep in tact. Whats the best way to upload the photos onto the IMac - using time machine? or drag them over album by album?

I assume you have a home network. Connect both computers to your network. If possible do this using Ethernet for faster speed and better reliability. Configure your MBP for File Sharing. Use a copy program such as Carbon Copy Cloner 4.0.2 to transfer your entire folder of photos to your new machine.
OS X Mavericks- Connect to shared computers and file servers on a network
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New 27inch iMac, external Display "blinks" while in "Display Sleep"

I just updated from a 24inch iMac to a 27inch iMac.
I'm using the same setup for connecting the external display, which is a miniDisplay Port adapter(from Apple) to DVI, then DVI to the external monitor.
All works fine until the "Sleep Display" kicks in, then the external monitor pops up the "DVI-I no signal" warning. This is normal but instead of going away after a couple of seconds it begins to blink as if their is communications going on between the monitor and iMac. So its blinking this message endlessly and thus the external monitor never really goes to sleep.
Since this worked fine on the iMac 24inch, I'm assuming it has something to do with the "Thunderbolt" port, using a miniDisplay port adapter.
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I added a YouTube video for clarity. http://www.youtube.com/watch?v=Q7Zm_U_7sbc

Go to: System Preferences > Displays select the Color tab > uncheck "Show profiles for this display only" and try one of the RGB profiles to see if it is better for you.
Then if you are not happy with one of those..? Try Selecting, Calibrating and Saving a different Profile, other than the default one offered for that monitor.

27inch iMac plate to raise it level with a 27inch Thunderbolt LED Display?

Hi,
I'm in the market for a new 27inch iMac and a 27inch Thunderbolt LED display as a second monitor. Looking that the specs I note that the height of the iMac is 16mm less than that of the LED display.
That being said, I'm not keen to put something cheesy under the iMac (like a magazine) to raise it to the right level. Does anyone know of a plate/stand that might help align the two? Wallmounting is not an option - these need to sit on a desk.
I hope there's something cool to keep with the clean crisp look of the Apple gear. Otherwise I've found a place that sells aluminium plates at 16mm thickness (+/- 2mm tolerance) which may be my fallback plan.
Any advice/ideas/thoughts welcome.
Cheers,
Red.

Yes it will work. This is an answer from a Genius at the Apple Store in London:
I've contacted Engineering and they've informed me that daisy-chaining the new Cinema Display is possible up to two displays on 15-inch MacBook Pros, 17-inch MacBook Pros and iMacs. This, unfortunately, rules out the Mac mini as well as the 13-inch MacBook Pro and MacBook Air. The marketing material on the website will be updated soon to communicate this.

Imac 2010 27inch endless problems in the last 24hrs

Hi guys, this is my first post and I am relatively new to the world of mac computers.
I have a 2010 27inch I3 imac. I installed 2 4GB ram sticks yesterday so it now has 12gb installed in total. Everything seemed fine after I installed them, checked to see if the imac was seeing them and yes it now says 12gb installed, was working fine and normal for about 30 mins, I clicked on paralles to see if my indows 7 would open, and then the problems started happening. It kept crashing, thinking something was wrong with windows or paralles, I tried to reinstall the mac os x again, this didn't go as planned, every time I tried to download the mac os it said try again later, instead I used the time machine to reinstall everything and the same issues keep occurring.
I have no idea what exactly the problem. Has this ram I installed done something terrible to my imac or is it something worse.
I am extremely frustrated. Please help

Hi, it wasn't crucial memory I bought and the only reason I didn't buy crucial was the iMac I have has Samsung sticks of ram so I purchased that brand. I have since taken the ram back out and everything seems to be working normal again.
I haven't updated the system to the latest software from apple as I have parallels 8 and it says I would have to spend another 80 euro to upgrade that for Yosemite to work with it hence I didn't upgrade but I don't understand why that might have an affect on how my system is running. I don't mind buying crucial ram but I am now fearful of buying any ram in case this becomes a continuing problem.
Since taking out the ram all my programs seem to be working and it hasn't crashed in the last 30 mins, which is a good sign but I am noticing that every minute or so maybe less, some of my folder icons and time machine icon periodically refresh or disappear for a few seconds and then return, I don't know why this is?

27Inch iMac W/ 2-27inch LED Displays via Thunderbolt?

If I buy a 27inch iMac for web development, Will I be able to hook up 2-27inch Apple Cinema Displays to it via 2 Thunderbolt ports? I need 3 Flat screens total if possible.

Yes it will work. This is an answer from a Genius at the Apple Store in London:
I've contacted Engineering and they've informed me that daisy-chaining the new Cinema Display is possible up to two displays on 15-inch MacBook Pros, 17-inch MacBook Pros and iMacs. This, unfortunately, rules out the Mac mini as well as the 13-inch MacBook Pro and MacBook Air. The marketing material on the website will be updated soon to communicate this.

2010 imac display went black, but hard drive still working

Does anyone have an idea as to why the screen is black? Was on it about an hour ago with no problem. Have turned it off and back on, can hear it, but no matter what screen stays black.

Lolo55,
Thank you for visiting Apple Support Communities.
I understand that your iMac display shows a blank screen. Here is the best troubleshooting resource to go through when experiencing these symptoms.
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT201177
Cheers,
Jason H.

I have an 2009 27inch imac and a 2012 macbook pro

Hi... I have an 2009's 27inch imac and a 2012 macbook pro. Can I use the imac as an external monitor? If so, what is the cable to connect both?
Tnks in advance!

Welcome to Apple Support Communities
Late 2009 and Mid 2010 27-inch iMacs can be used as external displays for other Macs. See > http://support.apple.com/kb/PH11302
Your iMac has got Mini DisplayPort, so you can use it as an external display for your Thunderbolt Mac. You only have to get a Mini DisplayPort cable to connect both Macs, and press Command and F2 keys on the iMac to enable Target Display mode.

IMac display getting yellow when external display is attached?

Hi,
I have a problem with my IMac (27'' Mid 2010):
I have an external TV attached via MDP->DVI->HDMI cable. When I turn on the TV, the iMac recognizes it and the iMac display turns blue shortly, then the desktop returns and my TV is ready.
What I noticed: After the desktop returns, the iMac sometimes suddenly becomes "more yellow". Don't know exactly how to describe it, but I can clearly see how the desktop returns and then suddenly the imac display turns a little yellow, could also be that the display just gets a little darker (although the display brightness is the same as before). it's nothing that really disturbs me, and although I never saw the color return to normal it does (but I think only after rebooting the iMac)
anything on this? anyone else noticed that?
Message was edited by: nachdenki

Hi nachdenki
I've used both TV's and Monitors with my iMac over the years and that default iMac Profile has always looked yellow in comparison. Try one of those other sRGB, RGB Profiles or create a new Color Profile for the iMac's display.
http://www.computer-darkroom.com/colorsync-display/colorsync_1.htm
Dennis

Air play mirroring doesn't work mac pro desktop 2010 mid 27" display

mac pro desktop 2010 mid '27" display'
I have turn on the " show mirroring options in the menu bar " it does not show up
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so it is in the mac pro is there a down load fix or do I need to buy graphics card or what
I have had nothing but but troble out of this 27" display no microphone the misplay will stop working
when avery thing was new you told me that a fix would be out soon but 2 years later not a thing

be sure you are not confusing "AirPlay Mirroring" and Display Mirroring.
AirPlay Mirroring is not supported in that Model Mac, only in Macs with Intel integrated graphics:
About AirPlay Mirroring in OS X
Your Mac does support Mirroring of displays, and always has. The settings for this are in:
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... [√] Mirror displays

Anyone else have Light Leaks on their new 27inch iMacs?

I just received my custom 27inch imac a couple days ago, and found some subtle light leaking on the lower left hand corner about the size of my fist, and a much smaller one on the lower right side corner. The lower left side is most noticeable when the screen is dark. Is this occuring with anyone else and what choices do I have with this?

Hi guys. Custom 27" iMac, same thing.
Lower left corner whiteish on dark screen, less but still visible on the right lower corner.
I think that unfortunately it is a "normal" thing. IPS screens seem to be like this, and if you notice it, on a dark screen if you move your view angle, it turns almost white. LCD is not a perfect technology yet, and even if it is hard to say after spending all those money on a computer, I have to admit that (especially on such a big display) it is fairly normal.
Therefore, if you ask for a repleace, you might get the same problem, or the same problem with some dead pixels on top of it.
I'm not going to ask for it, even if I know how frustrating is to notice that what is sold for perfection is not.

Mid-2010 27" iMac with i5 - process for determine why slow

I have a mid-2010 27" iMac with an i5 processor and 12 GB of memory running latest Maverick OS. I mainly use the computer for email, web browsing, light weight spreadsheets and importing/organizing/sharing photos. I understand why my computer would be slow on startup (with reloading Safari pages, updating notifications, updating email, updating iMessage, etc.) but more and more often I see the spinning ball while using the computer. I have run though the basic steps of fixing permissions, etc. and would like to understand what is limiting my computer's performance. A few other things to note...
I have 12 GB of memory (the original 2 GB x 2 and I've added 4 GB x 2). I have heard that mixing memory isn't best.
My 1 Tb hard drive is at 80% capacity. I have heard that ideally this would be lower.
How do I determine what is causing my slowness? Is there a way of finding out which programs are demanding memory and by how much? I have read that my iMac can offically support 16 GB memory and unofficially support up to 32 GB. Not sure if 12 GB is a limiting factor or not. Just looking to get another year or so from this computer without getting frustrated watching the spinning ball. Would a fresh install of Marvericks and then reloading my personal stuff improve the situation?
Thanks in advance!

See:
Mac Maintenance Quick Assist,
Mac OS X speed FAQ,
Speeding up Macs,
How to Speed up Macs,
Macintosh OS X Routine Maintenance,
Mac troubleshooting: What to do when your computer is too slow,
Essential Mac Maintenance: Get set up,
Essential Mac Maintenance: Rev up your routines,
Maintaining OS X,
Five Mac maintenance myths and
Myths of required versus not required maintenance for Mac OS X for information.

Can i use seagate goflex 3tb external hard drive for 2010 27" imac internal hard drive replacment if i take it out of the goflex case.do i need to format it before installation due to it allready having goflex software on it from manufacturer.

i have 3tb seagate goflex external hard drive.its brand new in package.i took it out of case and deleted partitions that were created by manufacturer.so now i have 2800 gigs.its formatted ntfs.will it work for late 2010 27" imac internal hard drive replacement.i found a apple repair place that will charge me 50$ to swap drives for me assuming i have the drive.i will have to install leopard myself at this price.i dont want to have to pay for anything other than the swap.will this hard drive work with this format or do i need to format it differently.

Hello
formatted ntfs
NTFS format not work on mac system , need to be formatted as Extended Mac os Journaled format and partition table need to be GUID
how to do that in video
HTH
Pierre

Putting iMac display to sleep, when using TV as a screen.

I have just connected my iMac to my 42" Panasonic 1080p TV, the connection was easy and is working fine. My questions relates to putting the iMac display to sleep when using the TV as a monitor, if I am watching You Tube, Sky Player or a DVD, I intend to use my TV as the monitor. Is it possible for the iMac to puts its display to sleep, whilst leaving the TV on. I played around with this today, however was unable to manage this.
Regards Craig

Hi Craig
There is no way to independently sleep either the iMac's Display or an attached Display/TV. However if in the Display Arrangement Preferences you set the attached Display or TV to be the Main Display and turn Mirroring Off, then FrontRow and the Full Screen Mode app's like, DVD player, QuickTimePlayer, etc. will black out the unused iMac display.
Dennis

2010 27inch iMac display trouble

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