My Thunderbolt Display will not turn on.

I'm using a Mid 2012 Macbook Pro and just recently updated the OS X to 10.8.2. It was working great before this update, however, I cannot get it to link anymore. This is a critical problem as I'm a graphic designer and working on a small 13" screen makes it nearly impossible to get anything done! Please help!

Sometimes I run into this issue and figure out that I didn't connect MBA or MBP to power supply. You might want to check that.

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My iPhone fell in the water and the display will not turn on, I can hear SIRI

My iPhone 5 fell in the water
I put it in rice and now I can hear SIRI but the display will not turn on

You'll have pay the Out-Of-Warranty-Service fee, to get it replaced, the water damaged the phone too much.
Out-of-warranty repair service
If your repair isn’t covered by Apple’s One Year Limited Warranty, AppleCare+, or AppleCare Protection Plan, your iPhone might be eligible for out-of-warranty service. For example, liquid damage isn’t covered by warranty but might be eligible for out-of-warranty service. Some damage isn’t eligible at all, for example if your device has been broken into multiple pieces. See Apple’s Repair Terms and Conditions for complete details.
Read Apple’s Repair Terms and Conditions
Model
Out-of-warranty service fee
Battery service*
iPhone 6 Plus
$329
$79
*available only if battery
fails Apple’s diagnostic test
iPhone 6
$299
iPhone 5s, iPhone 5c, iPhone 5
$269
iPhone 4s
$199
iPhone 4, iPhone 3GS, iPhone 3G,
Original iPhone
$149
Plus a $6.95 shipping fee, if required. Fees are in USD and exclude local tax. Pricing is for service through Apple. The final service fee we charge will be determined during testing and may be less than the service fee listed above. Pricing and terms vary for service through an Apple Authorized Service Provider.
Out-of-warranty pricing varies for Apple accessories such as adapters and Apple iPhone cases. Contact your carrier, Apple, or an Apple Authorized Service Provider for more information.
copied from Service Answer Center - iPhone

Thunderbolt display do not turn on iMac 2011

Hi,
any idea why Thunderbolt display do not tur on iMac 27 (2011).
it turn on rarely (2 times from 10)
I also have conneced 24 Cinema display via display port

I believe AHT is a totally self-contained environment with its own (I assume very basic) video driver. I originally suggested a safe boot because that simplifies video too by suppressing quartz extreme. The ideas here were an attempt to minimize some of the video software involved. But the intermittent nature of your problem I believe indicates a hardware problem. And since it worked sometimes I'm inclined to believe it's the video card. It's not definitive, only my "feeling".
I don't think there is any more you can do at this point other than let apple diagnose it.

Display will not turn off

I synced my iphone with itunes last night and now the screen will not turn off automatically when at the home screen. It will turn off when at the lock screen. I have tried both a soft and hard reset without result. ANy suggestions?

go to your settings ---- > general ------ > auto-lock , and chose to auto lock it in X minutes. right now, in auto lock menu on your device it probably says NEVER because your display doesnt lock itself and stays on basicly forever XD hope i helped Cheers sorry for my bad english

External Display will not turn back on after sleep

Just bought a new MBP last week and gave my wife the MB. I typically attach to an external 24" display and run in closed clamshell mode. I have been doing it for quite some time with no issues. Now with the new MBP if the energy saver kicks in and turns off the display, and/or the energy saver puts the computer to sleep when I attempt to wake it up the display flashes then goes blank. There is no way to turn it back on. When I open the clamshell the internal display will only show some random pixels and a white line at the top of the screen. There is no way to correct it unless I shut down the machine.
I am running with the Nvidia card, not the internal Nvidia. If I manually put the computer to sleep it will wake normally with no screen issues. It will also not act up if the external display is not connected.
Any help or suggestions of a setting I might have wrong that would cause this?

It is a Gateway FHD2400. Connected from mini display to HDMI. My previous MB was connected to the same monitor for the last year with 0 issues. It was connected mini dvi to VGA.
The issue is strange because it only happens when the computer turns off the screen or sleep. When I put it in sleep it doesn't happen.

When waking up my macbook air from sleep, display will not turn back on.

My mid 2011 macbook air running lion is having some issues. The display, after the laptop has been woken up from sleep, will not come back on. The rest of the computer is fully functional as when i press the volume keys, i can hear the sound that it makes, the keyboard brightness keys also work. Theonly way i can fix this at the moment is doing a force shutdown and turning it back on again. If anyone has an answer to this it would be greatly appreciated.
Thanks.

Having much the same problem with my 2011 11" Air, running 10.8.2 and wondering if you ever got any resolution on this. I've had the same issues through several versions of Mountain Lion.
My display does come up, but what I see is my login screen (I have it set to require a password on wake), but with a beachball, and I can't type in the password field. I can tell that other processes are running (for instance, just now I could hear a YouTube video playing) but I can't make it respond to input.
I've also had times where I put it to sleep by closing the lid, only to come back some time later to hear the fan running and everything unresponsive.
I've reset the PRAM, reinstalled Mountain Lion, reset the SMC. I'm purposely not running a lot of extra software.
Just curious, are you using FileVault at all?

My Thunderbolt Display will not wake up from sleep!

I have a 13" MacBook Pro on 10.8.4 Mountain Lion. When I hit the space bar to wake up my laptop, the Thunderboly Display stays black! Unplugging the display cable and plugging it back in solves the issue, but then it consolidates my open windows! REALLY ANNOYING!
There's also been 2 or 3 times when that didn't work and I had to shut the computer down and disconnect the power from the ThunderBolt display... Any cure for this nonsence?

I only had that problem once - and unplugging the Display from power and lugging it back in solved the problem for good.
Sine that's not working for you, you may be having a problem with the TB cable itself. If I were you, I would take the computer and Display to your local Apple Store/AASP and have them diagnose the problem. Again, I suspect that it's the TB cable, but I could be wrong...
Clinton

23" Apple Cinema Display will not turn back on

For some reason this morning I thought I'd help the world and turned off my ACD. I'm back at the officce now and cannot turn it back on. It's been on since I bought it (yes, it goes into sleep mode when not in use) in December. In either case, is there a special trick to turning this thing back on? I tried the plug-unplug thing, I turned off and on my PC (I also use it for my g4 powerbook) to which it was connected at the time as well - nothing. Any thoughts out there?
Thanks in advance for any help,
PC Box Windows XP 23" Apple Cinema Display, also a 12" G4 Powerbook

I am having the same issue right now. Except it has happened with my 2 monitors on my dual monitor G5 Quad set-up. Both monitors are down. I tried a different monitor in the same computer and it works fine. So I think it must be a monitor related issue.
Although, I wonder if it possible that the computer has somehow put both monitors into a "deep sleep" mode? Is there such a thing. I tried a PRAM reset that didn't help, so I'm not sure if this is the case.
Next up is to figure out some way to test the power on the 2 power adapters/transformers without electocuting myself. I have a suspicion at this point that a power surge may have killed them?
Let me know if anyone has similar scenario, and if a solution was found.

My display will not turn on with Mac Pro!

When I shut down from the Apple menu and wait about 15 minutes then turn back on by pushing button on front of box, the display works just fine, but if I shut down and start up in the morning I have to restart about 10 times before the screen comes up!

Well guys, I myself have this same problem.. luckily i purchased a mac pro with 2 of these 7300 cards.. so i was able to swap the cards between their respective slots... and yep, sure enough, the "supposedl" good card has the same problem when in the bottom slot.. so this problem is only shown when monitors are connected to the BOTTOM slot.. the displays seem to work ok when in the TOP slot however. But this is hardly what I call a functional system. for this much money I would tend to want it to work 100% out of the box....
The mac is now in the shop.. and frustratingly. i got a call today from them, not able to replicate this intermittent problem... so now my 1 month old mac may have to get shipped back to apple (im in switzerland, itll be shipped to ireland) for another 2 weeks of downtime.
Apple better get off their ***** and really look into this a bit deeper.. this seems to be a bit of an epidemic problem.
Mac Pro Quad 2.66 2GB Ram 2x nVidia 7300 Mac OS X (10.4.8)

My new thunderbolt display did not turns on

I pluged to may Macbook air but nothisng happend. Scree is black

Thanks for the response. Turned out the problem was more pedestrian - I had the wrong kind of MacBook Air, not compatible with Thundrbolt. I thought I'd done my homework on that, but clearly not.

21" Display will not turn on.

The display is connected to a Mac Pro. To see if it was the computer, I connected the Display to my Mac Book Pro and I could only hear sound, display was still off. Any ideas?

To have your Mac adjust settings automatically, a display must answer with its name and capabilities when the Mac sends a query. The Mac sends such queries:
• at Startup,
• when you click the ( Detect Displays ) button [ try holding down Alt/Option key while viewing System Preferences > Displays] or
• when your Mac awakes from sleep.
So first set your display to the appropriate port. Next try a Restart, or Sleep and wake your Mac, or use the ( Detect Displays ) button.

TS3474 The ipod display will not orient when turn...picture will move when turned. Thank you.

I've reset the ipod nano..downloaded the software again and still the display will not turn when the ipod is turned. I don't know what else to do. Does this ipod need to be sent back to Apple? It's 6 months old. Any other suggestions? It's a 6th generation nano bought as a bundle with a armband and changer for Christmas 2011from Best Buy.

So you placed two fingers such as your thumb and index finger in a pinchlike fashion on the Nano's display and turned them clockwise and counterclockwise and nothing happened?
If so, you have a hardware issue, meaning you'll want to have the iPod serviced or replaced.
B-rock

My iPhone 4 will not turn on and is just displaying the itunes symbol not the apple symbol. How do I fix it?

My iPhone 4 will not turn on and is just displaying the itunes symbol not the apple symbol. How do I fix it? My phone died and I went to plug it in and it just displayed the itunes logo. It will not turn on at all. I plugged it into my computer in an attempt to connect to itunes with hoped of it turning on, yet nothing popped up as if it wasn't registering. Please help!

http://support.apple.com/kb/HT1808

My ipod touch 3g displays logo and low power but will not turn on

My Ipod 3g displays the apple logo and the low battery screen but it will not turn on.
Help please?

Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iPod fully off, let the battery fully drain. After charging for an least an hour try the above again.
- If still not successful that indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar
Also maybe here:
See:
iPod touch: Hardware troubleshooting
- Try another cable
- Try another charging source
- Look at the dock connector on the iPod. Look for abnormalities like bent or corroded contacts, cracked or broken plastic.
- Make an appointment at the Genus Bar of an Apple store.
Apple Retail Store - Genius Bar

My iPhone 4 is locked with the apple logo displayed it will not turn off - any ideas please

My iPhon4 is screen locked and will not turn off for me to start over. I have connected to iTunes and held down the button but to no effect. It does appear to be connected to I tunes because IT IS LISTING MY MUSIC. any ideas please

Try Recovery Mode... http://support.apple.com/kb/HT1808
Note you'll lose everything since the last sync, thus the reason to sync often.

My Thunderbolt Display will not turn on.

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