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

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Thunderbolt Ethernet not working after Yosemite upgrade

Upgraded last night to 10.10, and now my Thunderbolt Ethernet adapter has no MAC address, and my MBP appears to think the cable is unplugged - it's not, and worked fine when the MBP was running 10.9 yesterday. Things which haven't worked:
Deleting and re-adding via Network Preferences
Changing default IPv6 to Link-local only
Rebooting with the thunderbolt adapter in
Rebooting with the thunderbolt adapter not in
Switching the thunderbolt adapter to the port further from the hinge and back again
Unplugging and replugging the ethernet cable
Plugging the ethernet cable directly into the wall jack instead of the hub it has always been plugged into
Unplugging and replugging the Thunderbolt
Changing Location to "Work" from "Automatic" and back again

the link provide above leads to http://plugable.com/2014/10/31/os-x-10-10-yosemite-ethernet-adapter-problems-we- can-help
...but these seem to be all 3rd party USB ethernet adapters and nothing to do with the Thunderbolt adapter of the thread - or am I missing something?
I have the same blooming problem, it seems to be totally hit and miss whether the adapter works or not.
I thought is was a faulty adapter, so even bought a second one for my MacBook Pro, so a bit more profit for the most profitable company in the world for a non working device. My ethernet cable works fine to an old apple USB adapter but is 90% useless with Thunderbolt.
Renewing the DHCP lease occasionally works, but totally unreliable, at the moment it fails.
Still looking for a reliable solution.
Come on Apple, please sort this out, you have a connector policy of turning everything you can into adapters and dongles rather than building them in, so you end up with a slim laptop and a bag of adapters to carry around, and then when they don't even work - doubly annoying.

Spotlight and finder not working after Yosemite upgrade

Hi,
I just upgrade to 10.10.1 from 10.8 on a Mid 2012 Retina macbook pro, 2.7Ghz i7, 16GB RAM, 750GB SSD drive.
Since upgrading spotlight and finder have stopped working. When I first upgraded I noticed it worked very briefly and found some of my applications, but now nothing. The only thing it does is find the definition of the word I am searching for,
I have
gone in to sys pref > spotlight added and remove all folders and rebooted the machine
gone in to sys pref > spotlight > privacy tab and ensured no folders are in that pane
gone in to sys pref > spotlight > privacy tab and added "documents folder" closed sys prefs rebooted and then removed "documents" folder to try and trigger a re index
gone to terminal and typed "sudo mdutil -E /" which should erase and rebuild the index but i get the error back "Error: Index is already changing state. Please try again in a moment"
gone to terminal and typed "sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.metadata.mds.plist" and then typed "sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.metadata.mds.plist"
go to disk utility and verified my disk which comes back as showing no errors
logged in as another user but spotlight and finder still not working
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Thanks

unfortunately I this is still not working, thanks for the link Eric i tried those options, but still the problem remains.
I can clear the cache and re index my mac, and while the system is re indexing spotlight works and I can find material during the reindex. This is obviously limited to the files that have been indexed at the point of using spotlight.
Once indexing has finished if I go to spotlight and try to search for anything, there are no results only the dictionary appears.
At the moment I have to delete the index cache every morning to trigger a re index so I can work, this is terrible and the worst upgrade experience I have had with any OS mac or windows

Garageband not responding after Yosemite upgrade

Garageband will not fully load on Mac mini (Mid 2011) and is not responding after Yosemite install and upgrade (10.10.2). Can you advise me on how to get Garageband working again?
Thank you

Hello,
Do you have some Sound amplifying App installed?
If so remove it & reboot.

Share option for email does not work after Yosemite upgrade.

Hi,
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Rod.

On Yosemite, Pages '09 v4.3 no longer recognizes the Share > Send Via Email categories. You will have to export and manually drag/drop/attach documents to Mail. There is no fix.

HT1338 motion 4 will not work after yosemite upgrade

motion 4 will not work after yosemite upgrade

To be honest I do not use motion or any other compositing app so i do not miss it personally. However the new Motion is not that expensive, around $60 i think. Still, I understand your frustration.
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Thunderbolt Network Adapter not working after yosemite upgrade

After I upgraded to Yosemite, my MBP Retina 13" doesn't see the link on thunderbolt network adapter. The wireless is totally unreliable and freeze every few min for 1-2 min which is long enough to disconnect any sessions. Turn off and on of wireless works and recovers but it's royal pain. Any suggestions?
I scheduled call with Apple 3 times today. They call me back at the scheduled time and immediately tell me that I missed their call even though I pickup on 1st ring. Been waiting in their support queue for more than 30 min now and no one is on line yet.

the link provide above leads to http://plugable.com/2014/10/31/os-x-10-10-yosemite-ethernet-adapter-problems-we- can-help
...but these seem to be all 3rd party USB ethernet adapters and nothing to do with the Thunderbolt adapter of the thread - or am I missing something?
I have the same blooming problem, it seems to be totally hit and miss whether the adapter works or not.
I thought is was a faulty adapter, so even bought a second one for my MacBook Pro, so a bit more profit for the most profitable company in the world for a non working device. My ethernet cable works fine to an old apple USB adapter but is 90% useless with Thunderbolt.
Renewing the DHCP lease occasionally works, but totally unreliable, at the moment it fails.
Still looking for a reliable solution.
Come on Apple, please sort this out, you have a connector policy of turning everything you can into adapters and dongles rather than building them in, so you end up with a slim laptop and a bag of adapters to carry around, and then when they don't even work - doubly annoying.

HCM Processes and Forms not working after SP Upgrade

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FaceTime Camera Not Working After Yosemite Upgrade

So After I upgraded to Yosemite yesterday, my FaceTime Camera stopped working.
Every time I turned on FaceTime or Photo Booth, the green light on the camera started to blink like crazy but nothing would show up on the screen. It was just black. And I tried different user too, not working.
I tried to reinstall Yosemite, no luck.
Tried to rest SMC and PRAM, no luck.
Tried safe boot, no camera in safe mode.
Tried repair disk permission, no luck.
Here is how it showed in system report, I thought it would be more details?
I am using MBP with Retina late 2013 model. I am 90% positive that the camera was working before this upgrade.
I don't know whether anyone else encounter the same problem and I am afraid it's something I installed that's causing the problem. In that case, even a clean install works fine, after I restore everything from Time Machine, the problem might just come back.
Thanks!
<Image Edited By Host>

geoffreysong wrote: ... I am afraid it's something I installed that's causing the problem...
You have done the right things. With all you have tried, some third party item you have added is a very good guess as to what could be causing your trouble. The biggest difficulty will be determining which installation caused the trouble.
I am certainly not experiencing your problem on any of my 10.10 Macs.
geoffreysong wrote: ... In that case, even a clean install works fine, after I restore everything from Time Machine, the problem might just come back...
Right again! The way to prevent reinstalling the problem (and to prove your guess was correct) is to reinstall OS X using the OS X Yosemite: Erase and reinstall OS X instructions.
Next, before adding anything else, test your camera using the applicable suggestions from Apple's How to Troubleshoot iSight article. (Over time, Apple has changed the built-in camera's name on newer Macs from "iSight" to "FaceTime" and then to "FaceTime HD." Regardless of the name of your Mac's built-in camera, the same info and troubleshooting applies.)
• If the camera works now, your suspicion is correct. You can then add ONE needed app FROM ITS ORIGINAL SOURCE (not from any of your backups) and test the camera again. If the camera fails, you have found the problem app. If the camera works, continue adding apps one at a time, testing thoroughly between each addition. After all your apps are added back, if your camera continues to work correctly, you can copy your data files back from your latest backup.
• If the camera doesn't work immediately when nothing has been added to your fresh Mac OS X installation, you most likely have a hardware problem. There are no user serviceable parts of the camera. Contact Apple or an Apple-Authorized Service Provider for service.
Message was edited by: EZ Jim
Mac OSX 10.10.1

IPhoto not opening after Yosemite upgrade

After upgrading to Yosemite, iPhoto now will not load. It says: "In order to open “iPhoto.app”, you need to update to the latest version." However, when I try to bring up the app store and upgrade to the newest version of iPhoto, it will not let me. The button that would typically allow me to download the new version only says "open." And clicking on that button doesn't do anything - literally, I click it and nothing happens. I am using OS X 10.10.1 and it appears as though the iPhoto app (according to what is listed in the Applications folder, I cannot open the program to see if it correlates) version is 9.4.3. Thanks in advance for your help.

Please start a new thred or or new problem - click on New to the right of the iphoto support communities banner at the top
ThreadJacking multiple unrelated threads is not polite and will not give you god results
LN

Mail does not work after yosemite upgrade

I have two iMac desktops, one iMac 27" bought this year and another iMac 24" bought four years ago. I applied the Yosemite upgrade for both they were both running the Maverick with no problem at all), the new one works flawlessly but the old one has one problem with Mail, it won't send emails, it does receive them alright though. I tried using the service provider (Swisscom) repair tool and it says that all emails parameters are correct.
One thing strikes me: Whereas the new iMac received a visible new graphical upgrade of the Mail software (meaning a translucent background and different colors in the left column), the old 24" still has its old looking black and grey background showing that Mail was not (fully?) upgraded. Very frankly I dont care about the graphical upgrade as long as I can use my Mail programme.
Would anyone please help me to recover from this situation please? I do insist on the fact that all parameters of the email accounts are correct and were not changed at all. Thank you.

For those of you having email password issues, I'd suggest:
1) Close your mail client (i.e. Apple Mail, Thunderbird, Outlook, etc).
2) Launch "Applications" > "Utilities" > "Keychain Access.app"
3) Select "login" from the sidebar top left area, then select "Passwords" in lower left area
4) Click into the Search box in the upper right and search for your ISPs server names. For example, type "aol" or "google" or "comcast", etc.
5) Look through the search results for password entries related to your SMTP (outgoing) or IMAP/POP (incoming) mail servers. Select them and delete them.
6) Open your email client and try to receive mail, and then to send mail. You should be prompted to enter your mail username and/or password.
Hopefully this might fix issues for those of you using mail clients that use Keychain for credential storage.

Thunderbolt-Bridge does not work after Yosemite upgrade

Hi,
recently I upgraded my MacBook pro (late 2013) to OS X 10.10.
Now the thunderbolt - gigabit ethernet bridge is not recognised anymore.
More specific the "Network Preference" pan does say that it is disconnected -> no network connection.
At the same time the "System Information" window does say it is connected.
I already tried several reboots, a reboot in save mode and deleting the networks environments to start from scratch.
But nothing helps.
Before the upgrade, the bridge worked fine (sometimes it was recognised slowly).
The bridge itself is a original apple bridge with firmware version 5.5 (PMFV 0.0.8).
Any ideas?
Cheers, freeman

Hmm, there is a lot of red.
EtreCheck version: 2.1.3 (106)
Report generated 16. Dezember 2014 16:28:18 MEZ
Hardware Information: ℹ️
MacBook Pro (Retina, 13-inch, Late 2013) (Verified)
MacBook Pro - model: MacBookPro11,1
1 2.4 GHz Intel Core i5 CPU: 2-core
8 GB RAM Not upgradeable
BANK 0/DIMM0
4 GB DDR3 1600 MHz ok
BANK 1/DIMM0
4 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en0: 802.11 a/b/g/n/ac
Video Information: ℹ️
Intel Iris -
Color LCD spdisplays_2560x1600Retina
PL2409HD spdisplays_1080p
System Software: ℹ️
OS X 10.10.1 (14B25) - Uptime: 7 days 18:4:18
Disk Information: ℹ️
APPLE SSD SD0256F disk0 : (251 GB)
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk1) / : 249.77 GB (16.34 GB free)
Core Storage: disk0s2 250.14 GB Online
USB Information: ℹ️
Apple Internal Memory Card Reader
Apple, Inc. Keyboard Hub
Logitech USB-PS/2 Optical Mouse
Apple, Inc Apple Keyboard
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. Apple Internal Keyboard / Trackpad
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Apple Inc. Thunderbolt to Gigabit Ethernet Adapter
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/Applications/Transmit.app
[loaded] com.panic.TransmitDisk.transmitdiskfs (4.0.0 - SDK 10.6) [Support]
/Library/Application Support/Hotspot Shield
[loaded] com.anchorfree.tun (1.1.1 - SDK 10.8) [Support]
/Library/Extensions
[loaded] at.obdev.nke.LittleSnitch (4228 - SDK 10.8) [Support]
Problem System Launch Agents: ℹ️
[failed] com.apple.CallHistoryPluginHelper.plist
[failed] com.apple.CallHistorySyncHelper.plist
[failed] com.apple.cmfsyncagent.plist [Details]
[failed] com.apple.EscrowSecurityAlert.plist
[failed] com.apple.lookupd.plist
[failed] com.apple.Maps.pushdaemon.plist
[failed] com.apple.sbd.plist [Details]
[failed] com.apple.security.cloudkeychainproxy.plist [Details]
[failed] com.apple.telephonyutilities.callservicesd.plist
Problem System Launch Daemons: ℹ️
[failed] com.apple.AssetCacheLocatorService.plist [Details]
[failed] com.apple.ctkd.plist
[failed] com.apple.GSSCred.plist
[failed] com.apple.icloud.findmydeviced.plist [Details]
[failed] com.apple.ifdreader.plist
[failed] com.apple.nehelper.plist [Details]
[failed] com.apple.nsurlsessiond.plist [Details]
[failed] com.apple.periodic-daily.plist [Details]
[failed] com.apple.periodic-weekly.plist [Details]
[failed] com.apple.softwareupdate_download_service.plist [Details]
[failed] com.apple.systemstats.analysis.plist [Details]
[failed] com.apple.wdhelper.plist
Launch Agents: ℹ️
[running] at.obdev.LittleSnitchUIAgent.plist [Support]
[not loaded] com.adobe.AAM.Updater-1.0.plist [Support]
[invalid?] com.cisco.anyconnect.gui.plist [Support]
[invalid?] com.oracle.java.Java-Updater.plist [Support]
[not loaded] com.teamviewer.teamviewer.plist [Support]
[not loaded] com.teamviewer.teamviewer_desktop.plist [Support]
[running] jp.co.canon.CUPSPS2.BG.plist [Support]
[loaded] org.macosforge.xquartz.startx.plist [Support]
Launch Daemons: ℹ️
[running] at.obdev.littlesnitchd.plist [Support]
[loaded] com.adobe.fpsaud.plist [Support]
[invalid?] com.adobe.SwitchBoard.plist [Support]
[running] com.anchorfree.ajaxserver.plist [Support]
[running] com.cisco.anyconnect.vpnagentd.plist [Support]
[invalid?] com.oracle.java.Helper-Tool.plist [Support]
[not loaded] com.teamviewer.teamviewer_service.plist [Support]
[loaded] org.macosforge.xquartz.privileged_startx.plist [Support]
User Launch Agents: ℹ️
[loaded] com.adobe.AAM.Updater-1.0.plist [Support]
[loaded] com.google.keystone.agent.plist [Support]
[running] com.spotify.webhelper.plist [Support]
[loaded] com.valvesoftware.steamclean.plist [Support]
User Login Items: ℹ️
Citations Programm (/Applications/Papers.app/Contents/SharedSupport/Citations.app)
Bartender Programm (/Applications/Bartender.app)
iTunesHelper Programm (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
TransmitMenu Programm (/Applications/Transmit.app/Contents/MacOS/TransmitMenu.app)
AeroFS Programm (/Applications/AeroFS.app)
owncloud Programm (/Applications/owncloud.app)
BetterSnapTool Programm (/Applications/BetterSnapTool.app)
Internet Plug-ins: ℹ️
AdobeExManDetect: Version: AdobeExManDetect 1.1.0.0 - SDK 10.7 [Support]
FlashPlayer-10.6: Version: 16.0.0.235 - SDK 10.6 [Support]
QuickTime Plugin: Version: 7.7.3
Flash Player: Version: 16.0.0.235 - SDK 10.6 Mismatch! Adobe recommends 15.0.0.189
Default Browser: Version: 600 - SDK 10.10
Silverlight: Version: 5.1.30514.0 - SDK 10.6 [Support]
Mathematica: Version: 10.0.0 - SDK 10.8 [Support]
JavaAppletPlugin: Version: 15.0.0 - SDK 10.10 Check version
Safari Extensions: ℹ️
AdBlock [Installed]
ClickToFlash [Installed]
3rd Party Preference Panes: ℹ️
Flash Player [Support]
TeXDistPrefPane [Support]
Time Machine: ℹ️
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 249.77 GB Disk used: 233.43 GB
Destinations:
TMBackup [Network]
Total size: 982.05 GB
Total number of backups: 0
Oldest backup: -
Last backup: -
Size of backup disk: Excellent
Backup size 982.05 GB > (Disk size 249.77 GB X 3)
LACIE SHARE [Local]
Total size: 400.08 GB
Total number of backups: 12
Oldest backup: 2014-10-20 13:12:53 +0000
Last backup: 2014-12-07 20:24:45 +0000
Size of backup disk: Too small
Backup size 400.08 GB < (Disk used 233.43 GB X 3)
Top Processes by CPU: ℹ️
      49% WindowServer
      3% Little Snitch Agent
      1% Mathematica
      1% WolframWorkbench
      1% coreaudiod
Top Processes by Memory: ℹ️
352 MB Safari
301 MB Mail
232 MB WolframWorkbench
223 MB Finder
129 MB aerofsd
Virtual Memory Information: ℹ️
153 MB Free RAM
2.26 GB Active RAM
2.05 GB Inactive RAM
1.93 GB Wired RAM
99.60 GB Page-ins
3.48 GB Page-outs
Diagnostics Information: ℹ️
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Dec 14, 2014, 11:25:43 PM ajaxserver_2014-12-14-232543_MacBook-Pro.crash
Dec 14, 2014, 11:24:40 PM ajaxserver_2014-12-14-232440_MacBook-Pro.crash
Dec 14, 2014, 11:24:09 PM ajaxserver_2014-12-14-232409_MacBook-Pro.crash
Dec 14, 2014, 11:23:58 PM ajaxserver_2014-12-14-232358_MacBook-Pro.crash
Dec 14, 2014, 01:13:42 AM ajaxserver_2014-12-14-011342_MacBook-Pro.crash
Dec 14, 2014, 01:12:08 AM ajaxserver_2014-12-14-011208_MacBook-Pro.crash
Dec 14, 2014, 01:14:24 AM ajaxserver_2014-12-14-011424_MacBook-Pro.crash
Dec 14, 2014, 11:26:46 PM ajaxserver_2014-12-14-232646_MacBook-Pro.crash
Dec 14, 2014, 11:25:01 PM ajaxserver_2014-12-14-232501_MacBook-Pro.crash
Dec 14, 2014, 11:24:30 PM ajaxserver_2014-12-14-232430_MacBook-Pro.crash
Dec 14, 2014, 01:14:45 AM ajaxserver_2014-12-14-011445_MacBook-Pro.crash
Dec 14, 2014, 01:12:29 AM ajaxserver_2014-12-14-011229_MacBook-Pro.crash
Dec 14, 2014, 01:11:58 AM ajaxserver_2014-12-14-011158_MacBook-Pro.crash
Dec 14, 2014, 11:25:22 PM ajaxserver_2014-12-14-232522_MacBook-Pro.crash
Dec 14, 2014, 11:26:04 PM ajaxserver_2014-12-14-232604_MacBook-Pro.crash
Dec 14, 2014, 11:24:51 PM ajaxserver_2014-12-14-232451_MacBook-Pro.crash
Dec 14, 2014, 01:13:01 AM ajaxserver_2014-12-14-011301_MacBook-Pro.crash
Dec 16, 2014, 02:52:02 PM Quicksilver_2014-12-16-145202_MacBook-Pro.crash
Dec 15, 2014, 02:27:36 PM SourceTree_2014-12-15-142736_MacBook-Pro.crash
Dec 14, 2014, 11:27:17 PM ajaxserver_2014-12-14-232717_MacBook-Pro.crash
Dec 14, 2014, 11:26:56 PM ajaxserver_2014-12-14-232656_MacBook-Pro.crash
Dec 14, 2014, 11:26:25 PM ajaxserver_2014-12-14-232625_MacBook-Pro.crash
Dec 14, 2014, 11:25:53 PM ajaxserver_2014-12-14-232553_MacBook-Pro.crash
Dec 14, 2014, 11:25:32 PM ajaxserver_2014-12-14-232532_MacBook-Pro.crash
Dec 14, 2014, 11:25:11 PM ajaxserver_2014-12-14-232511_MacBook-Pro.crash
Dec 14, 2014, 11:24:19 PM ajaxserver_2014-12-14-232419_MacBook-Pro.crash
Dec 14, 2014, 01:15:17 AM ajaxserver_2014-12-14-011517_MacBook-Pro.crash
Dec 14, 2014, 01:15:06 AM ajaxserver_2014-12-14-011506_MacBook-Pro.crash
Dec 14, 2014, 01:14:56 AM ajaxserver_2014-12-14-011456_MacBook-Pro.crash
Dec 14, 2014, 01:14:35 AM ajaxserver_2014-12-14-011435_MacBook-Pro.crash
Dec 14, 2014, 01:14:14 AM ajaxserver_2014-12-14-011414_MacBook-Pro.crash
Dec 14, 2014, 01:14:03 AM ajaxserver_2014-12-14-011403_MacBook-Pro.crash
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Dual Display on Mac Pro (2011) not recognized after Yosemite Upgrade

I have Mini Displayport-to-HDMI adapter that used to work fine until I upgraded to Yosemite (now running 10.10.2). Now during boot up the main display flashes looking like it 'notices' the 1080 display resolution then quickly ignores it and the HDMI output is not recognized in the System Preferences Display window. This Mac Pro has two Mini Displayport ports and both behave similarly.
The main display powered through the DVI port works fine
Any suggestions to resolve ?

Not sure how critical your dual display is to your work life, but if it is you may want to consider using a Matrox product. Google it and search their site for "DualHead2Go" adaptor. I've used their stuff since 2008 when I bought my MacBook Pro. Their software is always kept up to date with the latest Mac OS. I have been VERY pleased over the years. Food for thought if you can't get your current system to function properly.

Camera in not found after Yosemite upgrade.

2012 Macbook Pro
Things we have already tried. (Several times)
First - find out if the computer recognizes the camera. Check System Profiler (in the Utilities folder, inside the Applications folder). Under the USB header, check to see if the iSight camera is detected.
Second - SMC reset for your machine.
1. Shut down the computer.
2. Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
3. On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
4. Release all the keys and the power button at the same time.
5. Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
Third - Resetting NVRAM
1. Shut down your Mac. Unplug the Power Supply and wait 15 seconds then plug it back in.
2. Locate the following keys on the keyboard: Command (⌘), Option, P, and R.
3. Turn on your Mac.
4. Press and hold the Command-Option-P-R keys immediately after you hear the startup sound.
5. Hold these keys until the computer restarts and you hear the startup sound for a second time.
6. Release the keys.
Forth - Quit all open apps that may try to use the camera. Go to Application/Utilities/Activity Monitor and sort by process name. Find VDCAssistant. Double-Click on it to open the window about it and click on quit to stop the process.
Or kill it through the Terminal App.
Quit all open apps that may try to use the FaceTime camera.
Open Terminal, found in the /Applications/Utilities directory in OS X.
Enter the following command string exactly, then hit return:
sudo killall VDCAssistant
Enter the administrator password when requested, this is required to execute a command with superuser privileges as prefixed by sudo.
Relaunch the app that was attempting to use the camera.
Fifth – Repair Disk Permissions . Go to Application/Utilities/Disk Utility, select your drive and click repair Disk Permissions.
Sixth - Run the Apple Hardware Test and see if you get any errors.
You need to connect to AC Power when running the Apple Hardware Test on a Mac notebook.
Set up your computer on a hard, flat, stable work surface that allows for adequate air circulation under and around the computer (such as a desk, table, or counter).
Shut down your computer. Then, press the power button to turn it back on.
Press and hold the D key before the gray startup screen appears.
It takes a minute or so for AHT to start up and inspect your hardware configuration. While this is taking place, an icon appears on the screen:
When the process is complete, select your language and click the right arrow. If you aren't using a mouse, you can use the up and down arrows to select a language and then press the Return key.
The AHT console appears. You can choose which sort of test or tests to perform:
To perform all of the basic tests, click the Test button or press the "T" key or the Return key.
To perform a more thorough diagnostic test, select the "Perform extended testing" checkbox under the Test button before you click the Test button. Your test results will appear in the window in the bottom-right of the console.
To exit AHT, click Restart or Shut Down at the bottom of the window.
Any other suggestions? Thanks!

Reinstalling OS X Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Reinstalling OS X Without Erasing the Drive
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility and press the Continue button. After Disk Utility loads select the Macintosh HD entry from the the left side list. Click on the First Aid tab, then click on the Repair Disk button. If Disk Utility reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit Disk Utility and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
Also see:
Reinstall OS X Without Erasing the Drive
Choose the version you have installed now:
OS X Yosemite- Reinstall OS X
Note: You will need an active Internet connection. I suggest using Ethernet
if possible because it is three times faster than wireless.

Terminal will not terminate after Yosemite upgrade

When attempting to close Terminal, or when attempting to logout or shutdown, the Terminal will not terminate, but displays the following dialog: "Do you want to close this window? Closing this window will terminate the running processes: ." Also, the red "close" icon shows a dot instead of an "x" inside, indicating the running process. However there is NO running process (that I started) other than the terminal's own Bash shell.
PS indicates only 3 user terminal processes, each the root Bash process running on the terminal:
$ ps
PID TTY           TIME CMD
2816 ttys000    0:00.02 -bash
2817 ttys001    0:00.01 -bash
2818 ttys002    0:00.01 -bash
ps -ef shows no child processes (other than the ps and grep processes:
$ ps -ef | grep 2816
501 2816 2813   0 10:58AM ttys000    0:00.02 -bash
    0 2868 2816   0 11:05AM ttys000    0:00.00 ps -ef
501 2869 2816   0 11:05AM ttys000    0:00.00 grep 2816
This behavior occurs no matter if I quit Terminal and restart it or any other combination of options.
This behavior is new with Yosemite. Version 10.10 is installed on a late 2009 iMac.
Thanks

Check the Ask before closing setting in the Terminal preferences dialog.

Thunderbolt display sound and ethernet not reliable after Yosemite upgrade

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