After upgrading to Mavericks, my Thunderbolt display does not wake from sleep.

I tried this approach 3 days ago after seeing your post and it seems to be working so far. I turned off Automatically adjust Brightness and moved Brightness level off max.

I am still getting notices that one or more of my USB drives has failed to properly eject - which used to occur every time the display went dead - but it is no longer killing the Thunderbolt display

The only way we are going to get this fixed it to have EVERYONE submit an Apple Bug Report if you have not already. And I would suggest submitting one ever week. This is rediculous that this has yet to be fixed and it it completely negates the use of the external ports on the back of the display by not waking back up.

Please, if you have not submitted a bug on this go to bugreport.apple.com and submit.

Hopefully Apple will get the message and address this.

So guys, I haven't replied here for a while in fear of my solution coming undone, but it has been safely over a month now.

So I got fed up with all the niggles with OS X Mavericks, so performed a clean install whick kind of solved the problem in terms of my monitor waking - it fixed it for several 'sleeps' but then once again failed to wake unless I restarted my Mac, in which case it would work again for another several 'sleeps'.

I then looked to this thread again and picked up the post that I've re-copied and pasted below. After implementing this alongside the clean installation, I've had no problems. At all. Not to say that this problem should exist in the first place and that Apple should have fixed the problem, but still - something to stop ourselves from tearing our hair out. Hopefully. 🙂

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g8k3pr

Re: Thunderbolt disconnects when MacBook sleeps

Dec 15, 2013 2:06 PM (in response to nicosen)

Hi all,

I finally figured out how to remedy this issue.

It has to do with the hibernate mode setting for the computer. By default, this is set to 3. For an explanation of what this here is the output from the pmset man page below. Long story short, I used pmset to set my hibernate mode to 0, which writes the machine state to ram for regular sleep mode. Since doing this, I have had no issues with the waking the computer and getting my Thunderbolt display back. To do this enter the following command in a terminal window

sudo pmset -a hibernatemode 0

Well, all I don't know that I want to call this fixed, however with the recent update to OSX 10.9.2 I have had 4 days where the Thuderbolt Display did not disconnect overnight!!!!! Anyone else seeing this "fixed" with 10.9.2 ?

Spoke too soon. It failed last night. Thunderbolt display was still asleep and hard drive connected to it disconnected 😟

Me, too! I was getting excited, after installing the update; evrything worked fine for about two days, then back to the Thunderbolt display not waking up in the morning when my connected Macbook Pro did.

This is kind of a disaster. This has been going on for months. I thought I had a fix and it didn't work. APPLE, PLEASE FIX THIS? WHAT GIVES? I've just become used to unplugging and replugging the Thunderbolt cable. Only thing that works.

I have tried everything here and other things. I made the conversion to Mac a month ago after a lifetime of microsoft figuring that if I bought the best MBP Retina 15 with thunderbolt display and all the accessories it would mean a temporary lapse in productivity to adjust but I have had 4 days wasted fighting this problem. First time after over an hour on the line with support nothing worked and I went into the store. It worked instantly and the tech said it was because the power management thingy in the display resets only when the charge is completely gone and that can take an hour so the trip 'fixed' it.

it seemd to happen when I travel and am not connected for a day so last trip I unplugged it before I left but today it's been dead and have tried every trick several times in various combinations. Chat support guy said to reinstall OS X and that failed to work.

Going to call tomorrow and ask for a refund though I am past 14 days. I spent $5K to have a solution that made my life easier and gave me some time back and am a tad disillusioned.

I don't believe they have not figured this out, the fix must be expensive and hardware related. THis is the antithesis of what I expected and in a house with two MBPs, 4 Ipads, 3 iphones, apple TV, airport extreme and a thunderbolt display only one item has ever been a problem at all and that is the Thunderbolt Display. I don't want a refund, I want someone at Apple who knows how to get hold of a display that won't do this to swap it out for me and I will swap out every new one until it is fixed or they release the next version because I should not have to lose 4 workdays in the first month on this - Come on Apple... anyone who buys this thing has a macbook which probably means they have an ipad and iphone and are a devoted fan. I bought the wife an ipad air tonight despite being annoyed because I believe in Apple products but this one is really giving me the feeling that I misjudged a bit. Anything this widespread that gets no official response for this long? Horrible PR at best. Disregard at worst.

Does this problem only occur when the TBD has been in use pre Mavericks, then continued to be used post Mavericks?

Has anyone had the problem if the TBD has only ever been used on a Mavericks unit and has never spanned OS versions?

Disregard that.

We discovered two problems with the sleep mode in OSX > 10.7.

If the wakeup-problem occurs replicable 100%, everytime you active your Thunderbolt display, the NVRAM-reset may help.

If you use a Macbook (Pro) in clamshell mode and the problem occurs not replicable and infrequent, this may be due to a different problem. Our solution (better: workaround) is found here:

https://discussions.apple.com/thread/3974876

I have the same problem with my macbook pro plus Lacie thunderbolt drive and external monitor (Dell). I tried the connection from thunderbolt drive to monitor with a MiniDisplayPort to DisplayPort cable and the connection from laptop with a USB to VGA adapter. The monitor works fine and goes to sleep normally. But in both cases I have the same problem. It's not my monitor that is ejected, but the external thunderbolt drive. 'Drive not properly ejected'. Putting all devices to sleep for an hour or so goes fine. Wake from sleep starts all devices up. But after a few hours the thunderbolt drive disappears after wake up from my desktop. So I have to restart the laptop.

It seems to be the same problem with a thunderbolt display.

There is something wrong with the wake/sleep management. It's a serious issue that Apple should give attention to.

This may be silly but something to be sure of. The thunderbolt connector coming out of the display fits into the port on the mbp right side up or right side down but only works with the marked side up. Since mine goes into a cradle the plug "wants" to go in upside down and has to be twisted.

After unplugging and reinserting 100 times I am almost sure I had it right some of the time on the display I took back but it worked at the store and though embarrassed I told the expert I could not be certain.

Despite being well past 14 days they said something along the lines of "you switched to apple and bought everything so that everything would work and that's what we want you to have, take a new one just in case".

Could have been a bad unit, could have been a moron plugging the cable in upside down but Apple didn't care, they were committed to making me a happy moron either way.

New one hasn't had issues but then I plug it in right side up every time now.

My Thunderbolt Display connected to my Mac Mini (late 2012) worked great pre and post Mavericks. I disconnected/reconnected everything a month back for some home improvements and now my Thunderbolt will not wake from sleep (if asleep more than a couple hours). I've tried rearranging USBs, turning off "Auto-Brightness" setting, restarting my Seagate Thunderbolt drive, turning off "Put Hard Drives to Sleep" in energy settings, and doing the NVRAM reset. Nothing fixes the problem long-term.

My only solution is to keep the monitor plugged into a separate power-strip and use the power-strip on/off button to wake the monitor. The monitor needs to be powered off for 10 seconds or so or else it still won't wake up. I keep thinking a power/wakeup/reset button on the monitor was a BIG omission in design, but manually turning the monitor off is obviously not the optimal fix!

Have a New Mac Pro, and new Thunderbolt display.

Have been copying a large amount of files from a FW800 raid unit plugged into the TBD to a TB raid unit plugged into the Mac Pro.

Kept having I/O errors that coincided with the machine sleeping (really? sleeping during file I/O? C'mon Apple)

Turned off sleep. Noticed same issue when display would go into lock/screensaver.

Disabled LOCK/Screensaver. FW800 drive remains mounted, and files continue to transfer.

So, short story is, machine has to be awake, monitors blazing in order to keep the FW800 drive (and apparently USB ports active according to a myriad of posts here and elsewhere on the Internet)

Apple, are you working on this?

This machine was very expensive, and this is unacceptible.