Thunderbolt display running OS X Yosemite Version 10.10.2 acts weird

I have a MacBook Pro (Retina, 15-inch, Late 2013) connected to a Thunderbolt display running OS X Yosemite Version 10.10.2. I am using Photoshop CS5 Extended Version 12.0.4 x64.
About 3 weeks ago when I opened a file and tried to move it up to the Thunderbolt display to enlarge it and make it easier to work on, it disappeared. This had never happened before. Now all PS files behave this way.
This doesn’t happen with any other apps on the computer including all the other Adobe apps I use.
[email protected]

I have similar problem Thunderbolt Display, Yosemite 10.10.2, but Photoshop CC 2014. sometimes I can quit PS and then it will work - or if I launch PS from the toolbar on the TB display, but today I can literally drag it from my Laptop where the file is visible to my TB display and the image disappears. I've even relaunched PS with all the preferences reset and that got it to work one time that it happened but I've only had the computer and PS for 2 weeks so its not like that much could have changed or gotten messed up in that time right? did you find any solutions?

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Thunderbolt Display not working with Yosemite

Hi all,
After I have updated my mid 2012 Retina Macbook Pro from Mavericks to Yosemite my Thunderbolt Display has stopped working. It makes no difference if I connect the display before startup, or while the macbook is already powered on. It just doesn't power up. The display doesn't show up in System Report (?) while it was actually working on the Yosemite beta 2. I have reset the NVRAM / PRAM and SMC all to no avail. When I connect the thunderbolt cable and power plug the MacBook also doesn't charge.
Does anyone have a solution for this?
Thanks in advance.

By power leak issue I mean something to do with what I just found here https://discussions.apple.com/thread/5276098?tstart=0
I was wondering why my Macbook was a bit tingly to touch. I've since plugged it in with the longer 3 pin lead. No fix to my display issue.

IMac Fan constantly running OS X Yosemite Version 10.10.1 (14B25)

Does anyone have this problem my iMac is going to be about a 1 1/2 year old now and the fan is constantly running and never shuts off. This happened from day one took it back to Apple store when first notice the problem which was 1 week later. They told me it was nothing and all iMacs run the fan and do not get to much concern. He did something like unplugging the cord and pressing the power button 2 times holding down for 10 sec each time he said had to reset pram or something like that. It went away for a day and came back tried his procedure and works once or twice and back come on the fan all day. But when in sleep mode goes off. But when on you can feel the air out of back coming out. Is thee anyway to stop it someone told me maybe the motherboard was going or the ram was bad but the Apple tech was I think honest with me he said they have these issue's and there is really nothing to do with the fan noise.The computer is not hot at all to touch and he told me thats when I really have to worry then if it feels hot to touch then shut it down and wait till next day to turn back on. I do not know what to make out with this issue. Anyone know of a fix for this that I can do? There is nothing blocking the computer is wide open only have a cable modem on the side next to printer. I just want piece and quite again thats why I bought a Mac. My pc windows 7 never did this and my laptop never did this either never saw anything like this until I got my very first Mac. Little upset with Apple support they are useless and did not even offer me a new one when I went back a week later they were very rude to me I paid $1299.00 for nosey machine and no help.I am a very frustrated Mac user and thats why I do not own a Apple phone I like Android much better and cheaper than Apple products and from what I have read about the new phone software being so bad even with the updates that another reason I will never have a iPhone. So any help with my fan will be a great help sorry for venting on here.I do apologize for that but need to vent as my fan is driving me nuts. Thank you all

franick01 wrote:
Do you know of any free ones that I can keep that are good?
In a word no. I keep hoping for better low price offerings in the App store, but Marcel Bresink eschews the App Store and the relatively cheap temperature reporting apps I have found there do not report fan speed which in your case, and I suspect many, is critical. Be aware that due to manufacturing tolerances some fans are simply noisier than others.
For what it is worth the fan in my late 2012 Mac mini is currently spinning at around 4,700 RPM and I all I can here is a faint sound of moving air. I get more noise from the fan in my external HD/optical drive enclosure when burning a CD/DVD which of course generates a lot of heat.

Running 10.6.8 OSX on MacBookPro stickies act weirdly?

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Thunderbolt display firmware update 1.2 won't install correctly

On Friday 11/13/2014, I received a Software Update notification in OS X Yosemite 10.10.1 that there was an update available for "Thunderbolt Display Firmware Update 1.2". I tried installing this several times, but every time it tells me "The Thunderbolt Display Firmware Update could not complete." Now I have 6 failed install attempts showing in Software Update, plus still the still to be installed update itself.
If I click on the "More info" button in the failed installation message, it takes me to this page: About Thunderbolt Display Firmware Update 1.2 - Apple Support
On that page it suggest to check the "About this Mac" info for Thunderbolt Display, where "The Firmware Version should be 26.2 and the Port Micro Firmware Version should be 2.0.7 after the update."
My Thunderbolt Display is currently on Firmware Version 22.2, with Port Micro Firmware Version 0.0.21. Why won't this update install?

I had a similar problem: The "Thunderbolt display firmware update 1.2" kept reappearing in AppStore, even though the uppdate seemed successful.
According to Apple[1] the update was successful when the the Firmware Version is 26.2 and the Port Micro Firmware Version is 2.0.7 (visible in About this Mac -> SystemReport).
Above versions were correct in my case, but the update still kept appering in AppStore... (probably I did download and install the update manually after the first failure, but I don't remember ...)
To get rid of the annoying update in AppStore I used the softwareupdate command[2] on the commandline:
softwareupdate --ignore TBdisplayFWUpdate1.2
[1]: https://support.apple.com/en-us/HT204450
[2]: https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/ man8/softwareupdate.8.html

Thunderbolt display doesn't start after standby

wakeup the MacBook from standby mode the thunderbolt display will not start since the mountain lion update.
you must unplug and replug the connector for starting the display

I had the same problem with my new MacBook Pro Retina connected to a new Thunderbolt Display running OS 10.8.2. I did resolve the problem after a week or so of troubleshooting, but it did involve getting a resplacement display from Apple.
Here WAS my situation: After connecting the display and having things work (video and external keyboard/mouse and sound/video), when the computer went to sleep (not display sleep, computer sleep) or when it was re-started via the display, I had video but did not have any other external control or display sound/video (was as if the internal hub of the TD was not working).
When I disconnected the Thunderbolt connector (which comes from the "All-in-One" TD cable) from the computer and then plugged in a regular Thunderbolt cable to the computer port and the empty TD Thunderbolt port, all was well. In other words I left the TD Thunderbolt connector disconnected and bypassed it with another Thunderbolt cable between the computer and the TD display port. Note that I left the power connector from the "All-in-One" cable connected as there was no problem with that portion.
This, of course meant that the Thunderbolt part of the All-in-One cable (which is not unpluggable from the display) was bad or the display electronics leading to it was bad. Either way it required a new or repaired display.
I hope this is helpful. After bypassing the All-in-One Thunderbolt interface with my workaround above, I never had the problem occur again (you could command the computer to sleep or re-start it from the display, remove the laptop to use elsewhere, re-connect it, etc. and everything continued to work without fiddling with any connections). As a result, I had Apple replace the display under warranty provisions.
Barry

Thunderbolt display long beep when plugged in to macbook

I have a MacBook Pro and connect it to a Thunderbolt display. After downloading Yosemite, whenever I connect to my display it makes a long, continuous (about 1-2 minute) beeping noise. The noise repeats every few minutes. It is loud and high pitched. I have connected to other Macs and the display does the same thing, so it is not coming from the computer. Any ideas?

If you still need help, download the Thunderbolt Display manual here.
Give it a minute or two to download then use the Command + F keyboard shortcut then type: troubleshooting

AMD Radeon HD 6630M vs Intel HD 3000 for driving a Thunderbolt Display

Hi
I've searched the net and cant find the specific answers I'm looking for regarding this issue.
Which graphics option is better for the Mac mini when connected to an Apple Thunderbolt display running at 2560 x 1440 resolution:
1) AMD Radeon HD 6630M with its 256mb GDDR5 memory
or
2) Intel HD 3000 with 512mb of memory ( i.e. I will upgrade the Mac mini to 8gb or RAM to get 512mb of video memory).
Now will the HD 3000 with its 512mb of system memory be better simply because it has more, or will the AMD 6630M be better because even though it has less memory it has faster GDDR5 memory as opposed to the DDR3 memory the Intel GPU will use?
I tested out the AMD 6630M in an Apple store and when I had multiple Safari windows open it struggled a bit when I used expose. It stuttered and lagged and the animation was not smooth. Would the Intel 3000 with 512mb ease this problem?
Thanks

Dear KYL, thanks for you fast and honest response. I have to say I am really disappointed. Apple sell so few machines/hrdware choice, you would have thought that the ones they do sell could run the core function of the OS smoothly!
I am really surprised that the Intel chip outperforms the 6630 for 2D? So the 6630 must only be better for 3D?
Is there anywhere that list 2D and 3D performance of different graphics cards to get some idea?
I may try adding the 8 RAM this week and see if it helpls at all. If it does, I wonder if there is a way to force the HD3000 to use even more RAM? i.e my modifying some of the preference or extension files somewhere.
If it doesn't I'm not sure what I will do. all this is logged with Applecare, but the machine was bought by my University, so returning it will be terribly inconvenient - if it is at all possible.
Buying a 15" MBPro is a very expensive way to achieve smooth Expose! I also will have unnecessarily ordered a superdrive external, and would then need to spec the MBPro with a SSD. And get an external HD too.
I love the mini, and the speed of the i7 + SSD is incredible, but jerky OS on something one uses 8 hours a day is just not acceptable.
The purchase is already inconvenient as I have to virtualise SL server to run some old academic software that needs Rosetta (but at leat that works).
Ho hum...
Expose has been around for 8 years or so. I'm amazed modern hardware can't work it smoothly (even on a big display)

My Thunderbolt display fan running unnecessarily

For the last 6+ months, I have used the MBP retina (Yosemite 10.10.1) connected via lightning cable to a 21" Thunderbolt display. My problem is that I have the fan running first thing in the morning when booting the MBP, as well as sporadically through the day. Placing my hand on various parts of the display shows it to be quite cool, while the fan is on (and even when the fan is not on). Nevertheless, the fan kicks-in regardless of:
brightness set to 50% or set to 100%;
use of 6 alternative spaces (of video desktop) or 1;
CPU processing at 50% idle or at 95% idle.
It is a complete mystery why the fan has to come on AT ALL. I've been through the following display-related Firmware updates, but each exhibits the same issues.:
Thunderbolt Display (September):
Firmware Version: 22.1
Port:
Status: Device connected
Link Status: 0x2
Port Micro Firmware Version: 2.1.3
Cable Firmware Version: 0.1.18
Cable Serial Number: C4M2064015CDNWFA9
Thunderbolt Display:
Vendor Name: Apple Inc.
Device Name: Thunderbolt Display
Vendor ID: 0x1
Device ID: 0x8002
Device Revision: 0x1
UID: 0x0001000100467B10
Route String: 1
Firmware Version: 22.2
Port:
Status: Device connected
Link Status: 0x2
Port Micro Firmware Version: 0.0.21
Cable Firmware Version: 0.1.18
Cable Serial Number: C4M2064015CDNWFA9
Port:
Status: No device connected
Link Status: 0x7
Port Micro Firmware Version: 0.0.21
Any ideas?

TBD fans are on all the time. That is be design. Don't worry unless it is making some strange noises. I assume you mean 27" display and not 21?

My MacBook Pro appears to run sluggish when connecting to a Thunderbolt Display

Here are my specs
Hardware Overview:
Model Name:          MacBook Pro
Model Identifier:          MacBookPro8,2
Processor Name:          Intel Core i7
Processor Speed:          2.2 GHz
Number of Processors:          1
Total Number of Cores:          4
L2 Cache (per Core):          256 KB
L3 Cache:          6 MB
Memory:          16 GB
Boot ROM Version:          MBP81.0047.B27
SMC Version (system):          1.69f3
Serial Number (system):          [REMOVED]
Hardware UUID:          [REMOVED]
Sudden Motion Sensor:
State:          Enabled
AMD Radeon HD 6750M:
Chipset Model:          AMD Radeon HD 6750M
Type:          GPU
Bus:          PCIe
PCIe Lane Width:          x8
VRAM (Total):          1024 MB
Vendor:          ATI (0x1002)
Device ID:          0x6741
Revision ID:          0x0000
ROM Revision:          113-C0170L-573
gMux Version:          1.9.23
EFI Driver Version:          01.00.573
Displays:
Thunderbolt Display:
Display Type:          LCD
Resolution:          2560 x 1440
Pixel Depth:          32-Bit Color (ARGB8888)
Display Serial Number:          [REMOVED]
Main Display:          Yes
Mirror:          Off
Online:          Yes
Rotation:          Supported
Connection Type:          DisplayPort
When I play games like StarCraft 2 on my MacBook Pro (without my Thunderbolt Display connected), the game runs GREAT
When I play games like StarCraft 2 on my MacBook Pro (with my Thunderbolt Display connected), you notice the mouse responding slower (I even lowered the graphics settings to it's lowest and still get the same results)
When I play games like Safari on my MacBook Pro (without my Thunderbolt Display connected), the game runs GREAT
When I play games like Safari on my MacBook Pro (with my Thunderbolt Display connected), you notice the mouse responding slower
The above happens with any application. This even occurs after a fresh reboot. i unplugged all my periphals from my MacBook Pro and Thunderbolt Display
I updated my OS and applications.
I monitor Activity Monitor and notice nothing unsual about runaway processes.
Just so everyone knows. This is a 2011 MacBook Pro.

I have the same exact model as you, as well as an Apple Thunderbolt Display. I don't play any games, so I wouldn't notice any degradation there but I do run a lot of GPU/CPU/RAM intensive apps and have experienced no problems with the TB display connected.
We have the same configuration, OS, everything. We may just be running different apps. I do have 16GB of RAM and a SSD so that may mean that I'm just not able to notice any slowdown at all.
I'm not sure what your problem might be - I would suggest contacting AppleCare to see if they've documented problems such as the one you're having.
Clinton

After Yosemite, Thunderbolt display fails to come on in clamshell mode

I ran Etrecheck and the results were as follows:
Problem description:
Thunderbolt Display doesn’t come on after power up. Also my desktop picture gets changed after display is restored.
EtreCheck version: 2.1.5 (108)
Report generated December 31, 2014 at 10:08:41 AM CST
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Click the [Adware] links for help removing adware.
Hardware Information: ℹ️
MacBook Pro (Retina, 15-inch, Early 2013) (Verified)
MacBook Pro - model: MacBookPro10,1
1 2.7 GHz Intel Core i7 CPU: 4-core
16 GB RAM Not upgradeable
BANK 0/DIMM0
8 GB DDR3 1600 MHz ok
BANK 1/DIMM0
8 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en0: 802.11 a/b/g/n
Video Information: ℹ️
Intel HD Graphics 4000
NVIDIA GeForce GT 650M - VRAM: 1024 MB
Thunderbolt Display 2560 x 1440
System Software: ℹ️
OS X 10.10.1 (14B25) - Uptime: 0:6:14
Disk Information: ℹ️
APPLE SSD SD512E disk0 : (500.28 GB)
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk2) / : 499.07 GB (357.63 GB free)
Encrypted AES-XTS Unlocked
Core Storage: disk0s2 499.42 GB Online
ST1000LM024 HN-M101MBB disk1 : (1 TB)
THERESA EXT (disk1s1) /Volumes/THERESA EXT : 190.04 GB (189.34 GB free)
1TB External (disk1s2) /Volumes/1TB External : 810.17 GB (120.69 GB free)
USB Information: ℹ️
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. MacBook Air SuperDrive
C-Media Electronics Inc. BassJump Core
Apple Inc. Apple Thunderbolt Display
Apple Inc. FaceTime HD Camera (Display)
Apple Inc. Display Audio
Firewire Information: ℹ️
LaCie Rugged FW/USB 800mbit - 800mbit max
disk3s1 (disk3s1) <not mounted> : 32 KB
320GB External (disk3s3) /Volumes/320GB External : 499.97 GB (88.33 GB free)
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Apple Inc. Thunderbolt Display
G-Technology G-RAID with Thunderbolt
LaCie Rugged mini
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/System/Library/Extensions
[loaded] com.Leawo.driver.AudioDevice (1.0.0d1 - SDK 10.2) [Support]
[not loaded] com.palm.ClassicNotSeizeDriver (3.2.1) [Support]
[not loaded] com.sierrawireless.driver.SierraDevSupport (2.0.4) [Support]
[not loaded] com.sierrawireless.driver.SierraFSCSupport (2.0.4) [Support]
[not loaded] com.sierrawireless.driver.SierraODSupport (2.0.5) [Support]
[loaded] com.sierrawireless.driver.SierraSerial (1.0.1) [Support]
[not loaded] com.sierrawireless.driver.SierraSupport (1.4.5) [Support]
[not loaded] com.sierrawireless.driver.SierraSupportKicker (1.4.5) [Support]
[not loaded] com.sierrawireless.driver.SierraSwitch (1.2.0) [Support]
[not loaded] com.twelvesouth.driver.BassJumpOverrideDriver (2.5.1 - SDK 10.9) [Support]
Launch Agents: ℹ️
[running] com.flipvideo.FlipShare.AutoRun.plist [Support]
[loaded] com.oracle.java.Java-Updater.plist [Support]
[running] com.twelvesouth.bassjump.observer.plist [Support]
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist [Support]
[not loaded] com.gopro.stereomodestatus.plist [Support]
[loaded] com.macpaw.CleanMyMac2.Agent.plist [Support]
[loaded] com.microsoft.office.licensing.helper.plist [Support]
[loaded] com.oracle.java.Helper-Tool.plist [Support]
[loaded] com.oracle.java.JavaUpdateHelper.plist [Support]
[not loaded] com.sierrawireless.SierraReset.plist [Support]
[running] com.sierrawireless.SierraSerial.plist [Support]
[running] com.sierrawireless.SWoCMon.plist [Support]
[running] com.twelvesouth.bassjump.player.plist [Support]
User Launch Agents: ℹ️
[loaded] com.adobe.ARM.[...].plist [Support]
[loaded] com.google.keystone.agent.plist [Support]
[not loaded] com.macpaw.CleanMyMac.helperTool.plist [Support]
[not loaded] com.macpaw.CleanMyMac.trashSizeWatcher.plist [Support]
[loaded] com.macpaw.CleanMyMac2Helper.diskSpaceWatcher.plist [Support]
[loaded] com.macpaw.CleanMyMac2Helper.scheduledScan.plist [Support]
[loaded] com.macpaw.CleanMyMac2Helper.trashWatcher.plist [Support]
User Login Items: ℹ️
GrowlHelperApp Application (/Library/PreferencePanes/Growl.prefPane/Contents/Resources/GrowlHelperApp.app)
Suitcase Fusion Application (/Applications/Extensis Suitcase Fusion/Suitcase Fusion.app)
AdobeResourceSynchronizer ApplicationHidden (/Applications/Adobe Acrobat 8 Professional/Adobe Acrobat Professional.app/Contents/Support/AdobeResourceSynchronizer.app)
Dropbox Application (/Applications/Dropbox.app)
Google Drive Application (/Applications/Google Drive.app)
AirPlayitServerManager Application (/Applications/AirPlayit.app/Contents/Resources/AirPlayitServerManager.app)
Internet Plug-ins: ℹ️
Google Earth Web Plug-in: Version: 6.0 [Support]
Default Browser: Version: 600 - SDK 10.10
Flip4Mac WMV Plugin: Version: 3.2.0.16   - SDK 10.8 [Support]
RealPlayer Plugin: Version: Unknown [Support]
Silverlight: Version: 5.1.30514.0 - SDK 10.6 [Support]
FlashPlayer-10.6: Version: 16.0.0.235 - SDK 10.6 [Support]
WidevineMediaOptimizer: Version: 6.0.0.12757 - SDK 10.7 [Support]
Flash Player: Version: 16.0.0.235 - SDK 10.6 [Support]
QuickTime Plugin: Version: 7.7.3
iPhotoPhotocast: Version: 7.0
SharePointBrowserPlugin: Version: 14.4.7 - SDK 10.6 [Support]
AdobePDFViewer: Version: 10.1.0 [Support]
JavaAppletPlugin: Version: Java 7 Update 71 Check version
User internet Plug-ins: ℹ️
BrowserPlus_2.9.8: Version: 2.9.8 [Support]
fbplugin_1_0_3: Version: Unknown [Support]
Safari Extensions: ℹ️
Facebook Cleaner [Installed]
F.B. Purity - Cleans Up Facebook [Installed]
AVG Do Not Track [Installed]
3rd Party Preference Panes: ℹ️
3ivx MPEG-4 [Support]
BrowserPlus [Support]
Flash Player [Support]
Flip4Mac WMV [Support]
GoPro [Support]
Growl [Support]
Java [Support]
Tuxera NTFS [Support]
Time Machine: ℹ️
Skip System Files: NO
Mobile backups: OFF
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 499.07 GB Disk used: 141.44 GB
Destinations:
Data [Network]
Total size: 3.00 TB
Total number of backups: 30
Oldest backup: 2014-07-08 04:52:19 +0000
Last backup: 2014-12-31 02:32:04 +0000
Size of backup disk: Excellent
Backup size 3.00 TB > (Disk size 499.07 GB X 3)
Top Processes by CPU: ℹ️
      4% WindowServer
      0% fontd
      0% SystemUIServer
      0% AppleSpell
      0% Google Drive
Top Processes by Memory: ℹ️
309 MB mds_stores
241 MB Dock
206 MB com.apple.WebKit.WebContent
103 MB Safari
103 MB Google Drive
Virtual Memory Information: ℹ️
12.03 GB Free RAM
2.51 GB Active RAM
1.42 GB Inactive RAM
1.22 GB Wired RAM
2.03 GB Page-ins
0 B Page-outs
Diagnostics Information: ℹ️
Dec 31, 2014, 10:03:01 AM Self test - passed
Dec 30, 2014, 05:26:28 PM /Users/[redacted]/Library/Logs/DiagnosticReports/garcon_2014-12-30-172628_[reda cted].crash
I am running the latest firmware on my TBD and software as you can see. The problem is intermittent and not consistent as you would expect. Thanks.

You do not need to use cleaning programs. They can destroy your computer operation as they may already have done.
CleanMyMac - Uninstall
CleanMyMac2 Un-install
After un-installing, run this program to make sure you got all the pieces.
EasyFind – Spotlight Replacement

Yosemite became terribly slow after connecting Thunderbolt display

Macbook pro 2011 16GB memory, SSD (instead of HDD), OS 10.10.1
After updating to Yosemite i realize that everything became very slow, all system is terribly slow. Finder, Safari, any other application. It doesnt matter what i use - OS X yosemite became unusable. In activity monitor - just after connecting THD kernel_task starts using 545% of CPU!!!!
But after disconnecting Thunderbolt display - everything goes back to normal.
I try to disconnect al external hdd connected to Thunderbolt display - nothing change.
I try to turn off transparency - also no effect at all, the only solution is not to use Thunderbolt display!
Thunderbolt Bus:
Firmware Version: 25,1
Port Micro Firmware Version: 2.1.3
Please anyone who had the same issue, can you advise something?

TBD is updated to the latest fw, but in Thunderbolt section of system information i got "No device connected", but Graphic/Displays section shows Thunderbolt display Connection Type: DisplayPort

Can't stop Thunderbolt display from flickering white lines after firmware update (Yosemite)

I am having serious issues after the Thunderbolt Display Firmware Update 1.2. Running Yosemite on MacBook Pro and I am now getting white lines that gradiate from the bottom to the top of my screen across multiple browsers, apps and even the finder window anytime I move my mouse. I cannot take a screenshot (it stops when I try) but I posted a video here:
http://youtu.be/3zOKL1JFp5M
It is impossible to work this way and after 20 minutes of watching my screen constantly refresh anytime I move my mouse I am feeling nauseous.
Is there anyway to UNINSTALL this firmware update? I was not having this kind of problem before. Every once in awhile I was finding my Thunderbolt display would not wake up after sleep and I thought the firmware update would fix that, not cause more, crazier problems. It is causing this gradiating line problem on my Thunderbolt display AND my MacBook Pro screen, which is even more bizarre.

I updated and no issues with my 2012 Mini so may be computer related. I believe once a firmware has been "burned" into the chip it cannot be redone.

Thunderbolt display sound and ethernet not reliable after Yosemite upgrade

After upgrading my MacBook Air to Yosemite, my Thunderbolt display has become unreliable. Most of the time, connecting to the display does not allow either the sound or the ethernet capabilities of the monitor to be used by Yosemite. A manual restart of the MacBook temporarily resolves the issue, but it recurs any time I unplug the MacBook and plug it back in again. Reminds my of my Windows days, having to restart the computer to resolve issues. Not a good feeling.

Hi there,
i was experiencing this too. I followed this procedure (Have a backup available or make one!!) :http://forums.macrumors.com/showthread.php?t=1756994
1. Download & Run Kext Utility - http://cvad-mac.narod.ru/files/Kext_...app.v2.5.7.zip
2. Download & Extract - IO80211Family.kext zip https://www.sendspace.com/file/4v4a4r
3. Let Kext Utility do its job repairing permissions, system cache, etc.. then Drag & Drop the extracted IO80211Family.kext file into the Kext Utility
4. Restart MAC OS X Yosemite 10.10.
(no garanties ;-)
Regards,
Harry

Thunderbolt display running OS X Yosemite Version 10.10.2 acts weird

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