Thunderbolt Display will not wake up after sleep!!!!!!

I have a similar problem with my imac. 23" 2011. I5... After it goes to sleep. Thunderbolt display comes on and off, on and off. It's driving me nutz. This kind of nonsense would never happen if Steve Jobs was in there cracking the whip!

maybe this is why Apple dumped ATI radeon out of their products. Or could this just be an Intel Issue? Maybe it's Intel and the uncompetitive business practices. Making the graphics by AMD not play nice with their crap.

I'm really starting to HATE INTEL. And if Apple doesn't fix this. I'm going to stop loving APPLE

you can click on displays, gather displays. click on the thunderbolt display window, and reduce your resolution to the lowest value. There must be a limitation/glitch on the Radeon device when it outputs though thunderbolt at certain bandwidths.. Also. I'm using a OWC shielded thunderbolt to DVI connector to a Dell 2001FP in 90 degree portrait(long ways) 1008x1334 res.

Imac i5 2011 23" 20 gb ram

Same issue, 2011 Macbook Pro and TB display. Genius diagnosed (apparently incorrectly) the issue to be the logic board on the laptop. They replaced it. 4 days later I took it home tonight and still have the same issue, I did a fresh install of Mountain Lion before taking it in to see if it may be software related, ran updates etc. Same issue. I installed Lion today, same issue.

If I open the laptop and wake it I need to unplug and re-plug the TB cable for the display to turn on. I'll make another trip to the store (an hour each way) to see what they suggest next.

On my retina mbp, I have an ethernet adapter in one thunderbolt port and a DVI adapter for an external monitor in the second thunderbolt port. When waking from sleep, the external monitor will not wake up, though the mbp still acts as though it is connected. (it's a Samsung, which actually displays 'video mode not supported' when in this state)

Unplugging and replugging the display adapter does nothing -- what does work (though annoying) is unplugging the ethernet adapter, then unplugging and replugging the monitor adapter, and then plugging in the ethernet adapter again. I suspect it's not the ethernet adapter in particular that's the issue, but rather that the monitor needs to be the 'first' thing plugged into the thunderbolt bus?

I have tried several things including using a seperate Tbolt cable to the TB display. What I am down to is if I put the display to sleep but not the computer it works just fine but when the computer sleeps the TB display will not wake and the peripherals attached to it do not function. I have a MB Pro and an MB Air and the same problem exists on both. If the machine is open the onboard display works without a problem on both machines. I can let the machine sleep if the TB display is disconnected before it sleeps and the machine awakes before the TB display is reconnected. My workaround is to set the machines to not sleep when on power and to sleep on battery and for the interim this is working but a fix is needed sooner rather than later.

Just recently started having the same issue, MB Pro 2011. I have the computer on a chill pad and it still seems hot like the video board is having trouble keeping up with the Thunderbolt Display.

I will try switching off the sleep mode while powered up and see if that helps.

Add me to the list. I'm a very disapointed Thunderbolt display owner. I just bought the whole set up. Macbook Pro reina and thunderbolt thinking I was going to get pure apple beauty...I'm extremely dissapointed as an apple use and an apple share holder.

Just started happening to me... three times now, after my computer sleeps, my display won't awaken. Have to set computer sleep to 'never' or else juggle around with the power switch, opening and closing clamshell, etc. Funny thing is that my TB drives and FW800 drives and USB ports are still recongized - it just the display. Have filed bug report with Apple but haven't heard back.

It was working so well for so long - and now this...

Clinton

Same problem over here. The TB display doesn't wake up after my MBP wakes up after slumbering...

Very annoying, please fix this issue Apple!

Only thing that works for me is to disconnect and reconnect the TB cable from my MBP. I hope this won't ruin my cable.

Please keep in mind: we're talking about a €999,- display here.

My problem with simply unplugging the cable is that I have four Thunderbolt drives and two FW800 drives connected via my ATD 'hub' - so I have to open the clamshell to unmount the volumes before I can disconnect the cable - and, even then, disconnecting and reconnecting the cable doesn't always bring the display to life: sometimes I have to disconnect the display from power.

It's really frustrating - to avoid the problem, I've just been allowing my MBP to run 24/7 without sleeping: hoping for a remedy soon.

Clinton

Hi everybody,

When I first complained, long time ago, I spent hours online and on phone call with them. They checked/uploaded everything from my MBP, then... nothing ! I never got any follow-up.

I keep getting these post from people with that same problem, but where is the solution?

Meanwhile I keep my MBP always connected and closed out of fear that perhaps the TB wont wake up again. :-(

If anyone meanwhile received an OFFICIAL solution, then please let us know.

Thanks.

I have a suspicion about this.

With the screen connected try this. Open your MacBook screen, then go to System Prefs / Displays. Click 'Arrangement' then turn on mirroring. Wait for the display to settle, then close the MB. The Thunderbolt screen will revert to its proper settings.

Does that solve the wake after sleep issue?

I've had two problems with my THB during the past year. Firstly, a few months ago, the display went fuzzy as if the layers under the glass were separating. Frightening. But I live in Phuket, Thailand, where the humidity can be high. So I turned on the air con and a dehumidifier, and within an hour the fuzziness started to reduce. After two hours, it had gone and so far hasn't returned.

Then yesterday, the screen suddenly went black while in use. No green/orange light on the mag connector, no response. On checking the display settings in system preferences, no THB recognised. Basically there were all the symptoms of a power supply failure. On reading the little white book, I noted that the humidity range is 10-80%. Now 80% is not high is many parts of the world. Maybe it is in California in the Apple ivory tower, but not in the real world. So I repeated my solution of months ago - turn on a/c and dehumidifier. This morning, bingo, it was all working again.

So it could be that many of the problems I've read about on these forums are environmental. Worth a try, anyway before lugging your THB to the Apple store.

Come on, Apple, if you are going to sell your products in places where the climate can be a challenge, make them a bit more robust. It shouldn't be too difficult.

Hope that more prosaic solution helps someone out there.

I'm no longer having problems with the 'sleep' issue. I think that everything will be 'fixed' with the release of 10.8.3 (which has been under development for over four-five months now - who knows when it will be released?).

Clinton