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

thanks!!!! excited to see the results for myself. I will try it out with my 2012 Mac mini and report back as well.

Ok yeah... same here. Unchecking "automatically adjust brightness" did not help me either. It's happened a few more times.

Sorry guys, just woke mine from sleep (for about the fifth time) have been with the fam for a few hours and it slept... best of luck. Try rebooting after you make that change (always a good idea)?

Same here, checking off the "...adjust brightness" didn't work.

At the same time, I don't think this is a problem with Thunderbolt or its settings. I think Mavericks messed up the sleep configuration that causes peripherals to be disconnected from my MBP while it sleeps.

When I put my MBP to sleep from the menu, I can wake the system up with the keyboard connected to the TBD right after. But after a while MBP goes to some deep, deep sleep and disconnects my TBD (giving me errors about incorrectly disconnecting/removing drives that are plugged to the back of the TBD). I also have some Cron job that supposed to wake my MBP up at night and do backups. After upgrading to Mavericks, the Cron jobs no longer work - i.e. MBP can't wake up either by external keyboard or by a Cron job. But then again, what do I now, I'm just a user...

Anybody knows about Sleep settings that can be tweaked?

Same issue with MBP13 2012 and 27" Thunderbolt Monitor.

No reset (SMC, PVRAM, NVRAM), space settings and energy saving preferences helped. I will disable sleep until a fix arrives. It's my wife's setup, and she rarely takes MBP away from her desk.

<flame>

Many, many, hours wasted... Wife wants to go back to Windows, because "it just works". I convinced her to use Mac with Parallels as she needs Windows for her work.

Being CS professors at a university, we are both rather highly educated and experienced computer geeks, so I cannot see how "it just works" works with the less knowledgable crowd...

I am not even going to mention hours wasted on the newly introduced shared photo streams and increasingly destined-for-failure icloud... Jobs did not have a clue about working within the networked world, and it seems that nobody else at Apple does...

At least they could keep their closely-controlled world under control!

</flame>

Same problem here, I hope apple comes up with a fix soon !!!

Good news! Changing the Auto Brightness seems to work for me but ONLY if I close all my apps before sleep. I am running a 2012 MBP attached to 27" Thunderbolt display with 2 external USB drives. (FYI - I also tried closing apps before sleep after I did the SMC reset and the Mission Control settings but it only worked once or twice).

I haven't figured out which one yet, but if I keep my usual apps running it will still not wake from sleep. If I shut them all down... it works! It is still much easier to relaunch a few apps (Firefox, Evernote, iTunes) than to pull out the MBP from it's little nook and fuss with unplugging and repugging cables.

My sense is that it is something I've got loaded in Firefox - I always have dozens of tabs open. Perhaps it is a tab that has loaded Flash that causes the problem or some such thing. Of course this doesn't help if I walk away from my desk with apps running and don't get back in time before sleep but it's good for end of the day.

Yes--I tried this too, and it worked for a bit, but then back to square one. I suspect this may require a firmware fix.

Well guys, after a failed solution from Apple support and a host of other niggly problems I was getting since my upgrade, I got fed up and finally decided to back-up my files and do a clean install on my hard drive.

Now, in regards to my Thunderbolt monitor it now gets interesting. Before performing a clean install, it would never wake up with my MacBook Pro (except for a few times I woke it up straight away after it went to sleep, which is no good). This of course, caused unsafe removal of hard drives connected to it etc, etc.

After the clean install, it seems to wake up with the MacBook fine. For a certain amount of times. If I don't do a full restart of my MacBook after a couple of days, it starts to fail again.

I am beginning to think that this is a problem with the release of the operating system we can't fix. Especially if this is the case after a clean install. So basically, although it has been better and much more managable, it definitely hasn't been properly fixed.

P.S Oh, and as I said in other previous posts, I had performed all the NVRAM, SMC and Monitor resets also.

Has anyone given up and tried changing Energy Saver settings? Like switching Computer or Display sleep to Never either in the Battery or Power Adapter tabs? Or Unchecking the options below those sliders?

My MBP is usually docked with the TBD and external hard drive so battery isn't an issue. I'm fine if the screen saver runs during those times I'm away from my computer during the day too.

I am going to set Power Adapter - Computer Sleep to Never and Display Sleep to 15 minutes and will report back.

I have.

My workaround #1 (my MBP and TBD are 90% of time plugged in):

Settings -> Energy Saver -> Power Adapter ->

• Computer sleep = "Never"
• Display sleep = 10 min

Im addtion (I'm experimenting now), my workaround #2:

Settings -> Energy Saver -> Power Adapter -> Schedule...

• Start up or wake: "Every day at 06:00am"
• Sleep: "Every day" at 00:00 midnight"

------------------------

So workaround #1 avoids forcing the wakeup by plug-unplug-TBD. Partial sucess. However, if I use #1 + #2, my MBP ignores the "Start up or wake" settings. Like I said in my previous post, Mavericks did something that puts MBP into very deep sleep ignoring anything around it... Bummer...

A solution was presented in this forum: https://discussions.apple.com/thread/5486283?start=15&tstart=1

(it's been a week, and the solution still works, so good luck)

Go to the second page of the forum and look up the post that reads:

------------------------------------------------------------

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

I have same problem with an Acer display connected to Mac MIni mid 2011 using DVI -> Thunderbolt adapter.

The problem appeared when upgraded to Maverick, never before with Lion. Any time the system goes to sleep the display doesn't wake up.

Hibernatemode 0 doesn't work for my Mac Mini.

Same for me. Thunderbolt display and MacPro mid 2012