My Thunderbolt display was working flawlessly until I upgraded my 2012 15" MBP to OS X 10.9. Now, when the MBP goes to sleep the display will not wake, the MBP wakes fine. The USB drive plugged into the back of the display is disconnected as well.
I have to unplug the thunderbolt cable and plug it back in.
Do you know what might be causing this? Any solutions?
Thank you!
MacBook Pro, OS X Mavericks (10.9)
Just had the problem again. Back to square one.
Same issue. Own early 2011 15' mbp. With 4tb thunderbolt lacie (mirrored). Have been receiving improper eject messages now with regularity. Only use thunderbolt connection. Osx updated to current incarnation. No clue on what to do.
Hello again everyone,
I think I might have a found a solution, like Braden Brook said, it has to do with the usb ports at the back.
I was browsing through the system setting and found that there is an option for turning off devices attached to the usb ports, I'm guessing this includes the ones at the back of the Display as well.
So I went on setting the "turn off" feature for the usb ports as "never". So in theory the current that's keeping on all the usb devices should never stop, consequently preserving the connection between the macbook and the display.
This is also the reason why when waking up the macbook it would say that devices where unsafely disconnected.
The option for this can be found in energy settings, and turning off the "put hard disks to sleep when possible". I did this for both power and battery, as when i go to sleep i usually disconnect the power of the macbook pro.
Hopefully this will work and thank you all for the replies! 😀
That sounds promising. I'll give it a try
You go in System Preferences, then Energy Saver.
In there you will find two tabs, one for Battery and one for Power Adapter (when plugged in power supply).
You should see that under the two scrolling bars for sleep there are two tick boxes, you can ignore the second one. But by unticking the first one, it means power will not be stopped from going to the hard drives.
I was a bit unsure at first as i thought this applied only to the macbook pro hard drive, but it's plural on there, then i assumed that included also external hard drives.
I hope this clarified your question 🙂
This does not account for the fact that the Thunderbolt display disconnects completely from the mbp regardless whether or not there are any external drives attached to it. In either case, you must unplug and replug the Thunderbolt display adapter in order for it to turn back on.
Well I just found out this now so i guess by tomorrow morning i will be sure if this actually works.
This is strange because when i disconnect the power from the mbp (while it's still connected to the display) it will go to sleep. Then when i put the power back in the macbook and press a key on an external keyboard it will wake up normally.
However, I realised that when left overnight the display would just disconnect. That's why i assumed it might have been that hard drive option that i just unticked.
The best way to know is to just try it 🙂
Hello,
I have same problem, I try unplug every USB on monitor, I try reset PRAM and SMC and I try uncheck in Energy saver hard disk sleep, but after upgrade to new OS, Display not come up after sleep.
Have you found some solution ??
Thanks
M.
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
To go back to the default, just replace the 0 with a 3.
Man Page output for pmset:
| hibernatemode takes a bitfield argument defining SafeSleep behavior. Passing 0 dis- |
| ables SafeSleep altogether, forcing the computer into a regular sleep. |
| 0000 0001 (bit 0) enables hibernation; causes OS X to write memory state to hiberna- |
| tion image at sleep time. On wake (without bit 1 set) OS X will resume from the |
| hibernation image. Bit 0 set (without bit 1 set) causes OS X to write memory state |
| and immediately hibernate at sleep time. |
| 0000 0010 (bit 1), in conjunction with bit 0, causes OS X to maintain system state in |
| memory and leave system power on until battery level drops below a near empty thresh- |
| old (This enables quicker wakeup from memory while battery power is available). Upon |
| nearly emptying the battery, OS X shuts off all system power and hibernates; on wake |
| the system will resume from hibernation image, not from memory. |
| 0000 1000 (bit 3) encourages the dynamic pager to page out inactive pages prior to |
| hibernation, for a smaller memory footprint. |
| 0001 0000 (bit 4) encourages the dynamic pager to page out more aggressively prior to |
| hibernation, for a smaller memory footprint. |
| We do not recommend modifying hibernation settings. Any changes you make are not sup- |
| ported. If you choose to do so anyway, we recommend using one of these three set- |
| tings. For your sake and mine, please don't use anything other 0, 3, or 25. |
| hibernatemode = 0 (binary 0000) by default on supported desktops. The system will not |
| back memory up to persistent storage. The system must wake from the contents of mem- |
| ory; the system will lose context on power loss. This is, historically, plain old |
| sleep. |
| hibernatemode = 3 (binary 0011) by default on supported portables. The system will |
| store a copy of memory to persistent storage (the disk), and will power memory during |
| sleep. The system will wake from memory, unless a power loss forces it to restore |
| from disk image. |
| hibernatemode = 25 (binary 0001 1001) is only settable via pmset. The system will |
| store a copy of memory to persistent storage (the disk), and will remove power to |
| memory. The system will restore from disk image. If you want "hibernation" - slower |
| sleeps, slower wakes, and better battery life, you should use this setting. |
| Please note that hibernatefile may only point to a file located on the root volume. |
Well, you may be onto something. After applying the "sudo pmset..." comand last night, my setup woke up this morning just by hitting the keyboard connected to the TBD. Had problems rebooting - hopefully not related to this.
Will report tomorrow and mark your msg as "This solved my..." if all still works. Fingers crossed...
Same here. In my case, I applied the setting after experiencing the issue and not rebooting. Woke up fine in the morning; however, when I put the mbp to sleep from the menu, the screen on the mbp would not come on when I opened the lid (without the thunderbolt display connected). I had to reboot as a result.
I'll keep monitoring.
Thanks!
HI,
I waited awhile to make sure. Deselecting worked for me. No more do I have the improper ejection by my MPB. Thanks much. You're a life (and drive) saver.
e
g8k2pr, it's been several days since I applied your suggestion and your solution still works and if I could I would give you the "This solved my question", but it's disabled for some reason. Thanks a lot!
P.S. Anyone tried to upgrade to 10.9.1? Did it fix it, made it worse? In the description of the update, I didn't see anything about the sleep issues. So, I'll wait for the 10.9.2. Had enough frustrations with the orginal upgrade.
I am on 10.9.1 now and it did not solve the problem. I still have to pull out the cable and put i back into my MBP to wake up my Thunderbolt display. If I pull the electric plug to the Thunderbolt display and turn it on again, my MBP will wake up.
Did you try the "sudo pmset -a hibernatemode 0" comman shown above?
Thunderbolt disconnects when MacBook sleeps
