Thunderbolt Display turns off randomly

I have brand new Mini Server and 27" Thunderbolt Display and mine will go to sleep and then not wake up again, I can do a desktop share and see the mouse and keyboard working but the display remains blacked out. Reported it to apple, no solution yet.....

Me too, also a brand new mini server. Don't know if ti's "tunred off" or "Asleep", but it won't wakre up. Computer is working, I can hear sounds through my external speakers.....have done firmware updates......also reported to Apple.

Well, as for me again, that doesn't happen anymore after firmware upgrade.

Using Mac Mini Server 2011 with Thun-di, dual monitor with Dell 2311H,...

Still wait for firm fix-up patch.

Same problem here.

Got 2 new Thunderbolt displays on Monday. Screen just goes Black. Requires a reboot to come back (computer may be still on, hard to tell as there is no reaction from screen)

This is AFTER I installed the Thunderbolt firmware upgrade.

Very frustrating as I just switched from a Windows PC and my first Mac experience is not a good one!

WestVanPete wrote: (computer may be still on, hard to tell as there is no reaction from screen)

If I hit the volume up / volume down buttons, I can hear them fine.....but I am using external speakers, not the TB speakers........I also unplugged/replugged display, and it comes right back up without a restart.

Thanks - not so easy for me to unplug/plug back in as I've mounted the mini beneath my desk. Appreciate the tip tho... hopefully this will be fixed at some point. Not sure if apple would take my mini/display back and give me an iMac....

Well I'd hold off for a little while......I bet they fix this through software/firmware soon.....or I'll be sending mine back!

jb

Me too, also a brand new mini server 2011. is there a process on MacOSX-Server to be fixed. Ive no idea. the cable method works. When the display black outed, I CAN login to MacOSX by using www.logmein.com on Wi-Fi network. So, the Lion server still works.

Not sure if this is related - I find the blacking of the screen happens when using a USB port on the back of the Thunderbolt display.

Maybe this is relevant to any Apple engineer reading this.

I got the same problem on a new Macbook Air 13. First I thought was MBA hung up on me because MBA screen also went dark at the same time. Unplug Thunderbolt cable would bring MBA screen back, then plug back the Thunderbolt cable back to MBA would caue the display to work again. However, this "working" condition will only last a few hours, different every time. Then problem re-occur and I repeat the same procedure again.

I called Apple Support and was told to bring it to store to gete a replacement. It is a big hassle to drag this monster around downtown Palo Alto.

Its a great display when it's working. Too bad quality is not there.

Called Apple. Was escalated to a nice senior tech called Gavin who told me that I should return the display to Apple as it is a known issue to which they currently do not have a solution.

Hopefully when my new display arrives in a couple weeks I'll have better luck....

Also having random shutoffs of display - will turn back on if unplugged/replugged. Using mini server 2011 with lion server. Is the post by WestVanPete confirmed? - Displays should be returned?

I set my screen saver on new Mac-Mini Server to the Thunderbolt display with the clock and then turned off sleep mode...in other words, no sleeping...

This seems to have stopped the random shut offs and failures to wake up since about 9-27-11.

First tech told me must be hardware, second tech thought software.

I don't want a new monitor if software can fix mine. Experiment with screen saver like me and please report back to Apple. Good luck out there.

I received my Apple Thunderbolt Monitor and Mac Mini Server Last Wednesday and for the first 4 hours it went dark roughly every half hour. I mentioned here that I was having the problem here. I tried several different configurations and it has now been 4 days with no further problems. I thought I would describe what I did and you can try and see if it helps.

Make sure you apply all patches, and reboot the system. The next time the monitor goes dark, unplug the monitors power cable and wait 50 seconds to plug it back in.

Next set display seep in energy saver and the screen saver to “Never”. Now reboot.

If the monitor goes dark again unplug the Thunderbolt cable, wait at least 30 seconds and plug it back in and reboot the system.

At this point set monitor sleep to something reasonable and reboot one more time.

I firmly believe that the problem is caused by some weird mismatch of hardware and software settings. I think the things I did corrected the mismatch. It may help to reset the PRAM but I didn’t do that myself.

Your milage may vary but I went from being disappointed with my Thunderbolt Monitor to being a happy camper. If it works for you report that here. Good Luck!

Update: In spite of setting energy saving settings to never sleep display, "blackouts" continue to occur.

I am using a dual monitor set up with my thunderbolt as primary display in horizontal mode, my secondary is being run off the HDMI in vertical mode to facilitate web page reading (System: new 2011 mini server using lion server - no alterations aside from firmware update). When I have been browsing for a while (likely greater than 5 min but have not found definitive time length) and only using my mouse or windows on the secondary screen - primary (thunderbolt) will "blackout" and require an unplug/replug.

I tried to get direct help from an "escalation engineer" I had worked earlier with an ethernet glitch, but reply was, not my department. I am awaiting being provided a contact to someone from the "correct" department (in fact, I am awaiting any response at all, as to whom I should get help from).

Peripherals attached to display continue to function - but have removed most as unplug/replug toll without prior ejection of my firewire drive is not ideal.

Concur with frustration.

Mac mini:

Vendor Name: Apple, Inc.

Device Name: Mac mini

UID: 0x0001000C1F333500

Firmware Version: 22.2

Port:

Status: Connected

Link Status: 2

Port Micro Firmware Version: 2.0.7

Cable Micro Firmware Version: 0.1.18

Thunderbolt Display:

Vendor Name: Apple, Inc.

Device Name: Thunderbolt Display

Vendor ID: 0x1

Device ID: 0x8002

Device Revision: 0x1

UID: 0x0001000100114ED0

Firmware Version: 22.2

Port:

Status: Connected

Link Status: 2

Port Micro Firmware Version: 0.0.21

Cable Micro Firmware Version: 0.1.18

Port:

Status: No devices connected

Link Status: 7

Super Port Micro Firmware Version: 0.0.21