El Capitan killed DVD drive

I also have this problem on my Mid-2010 iMac (11,2) with built in SuperDrive (Optiarc DVD RW AD-5680H). This issue was driving me nuts for the longest time until I stumbled upon a fix via Terminal command for disabling some sort of security setting that was apparently not allowing the loading of DVDs in my SuperDrive. CDs would load just fine but attempting to load a DVD would result in the drive spinning the disc up and down several times until ultimately ejecting the disc without so much as an error message.

Of course, I'm having trouble finding the link I used to locate the Terminal command, so hopefully someone here will know what I'm trying to describe... The first time I ran the command, the DVD I was attempting to load magically was mounted in the Finder! After some time, the SuperDrive reverted to its old ways and stopped mounting DVDs.

I still haven't updated the iMac to the latest OS, so perhaps that will be my next step. I know there is nothing wrong with the drive because I've tried all the usual tricks: PRAM, SMC, disc cleaner, jamming a credit card with microfiber cloth, etc. etc. If I install the newest OS I'll report back with any results I have.

EDIT: I found what I was looking for: the System Integrity Protection (SIP) was what I disabled via Terminal in order to get DVDs to load again: http://www.macworld.com/article/2986118/security/how-to-modify-system-integrity- protection-in-el-capitan.html

Same thing with me. I have a mid 2009 MacBook Pro. After El Capitan, the DVD drive stopped reading CDs and DVDs. They will insert, spin around for about 30 seconds, and then spit them out. I also had an external Aluratek USB 2 DVD reader/writer. I know that it worked, but after El Capitan, my Mac won't even see it.

Judging from the very high number of identical problems that I have read on this forum, it is definitely an issue that Apple needs to address, and not just rely on individual users with their duct tape and bailing wire solutions!

I will hold off buying any more Apple products until then.

It has been established time and again that the dvd drive works for most users.

The few ones for whom it doesn't work have conflicts with third party software.

It is not for Apple to fix that.

Try a clean install on a separate drive and you'll see that the dvd drive works fine.

Agreed!

I have a mid 2009 iMac that has done the same thing since I installed el capitan.

My iPod touch also does not work with iTunes since the installation.

They told me to buy a new iPod.

Not acceptable.

kitcatalina wrote:

My dvd player is part of my imac, not a 3rd party.

Why doesn't it work?

Because of other stuff that you have installed on your mac that either is not compatible with the OS version, or has bugs.

The DVD drives on macs (either built-in or external, Apple or third party) still work on El Capitan and Sierra.

For a small number of users who have had them not work, it always comes down to the same type of problem - conflicts with other software.

This is easy to prove. Just install a clean version of the OS and your dvd drive works.

To find out what may be causing the problem in the first place please run Etrecheck (an utility created by a respected member of this community) and post its report here. From seeing the report we may be able to figure out what may be causing the conflict.

Not sure what you are replying to when you say "don't think so".

kitcatalina wrote:

I don't think so.

DVD worked.

Installed el capitan.

DVD stopped working.

I take it that you are implying that the blame lies with El Capitan.

If you want to make that an act of faith, I can't help you.

The claim that dvd drives don't work with El Capitan in general is simply false.

There have been people with problems, but for overwhelming majority simply carried on working.

You may think this is a big thread, but there were many millions of El Capitan users with no problem at all.

You either want to figure out the cause or you can stay in your corner and assign blame.

If the former, please provide the Etrecheck report and I will try to help. If the latter, there is nothing else to do.

I have a late 2008 Mac Book Pro. I have the same problem as you; I installed El Capitan, and my internal DVD drive stopped working. It takes a DVD or CD, thinks about it for a minute, and then spits it out. Also my external DVD drive also now doesn't work. I cannot, due to hardware, update to Sierra. Apple should have had the foresight to prevent older Mac Books from upgrading to El Capitan, since they didn't have a proper upgrade available.

I have read the Apple excuse that "millions of users have upgrade to El Capitan without any problems". My question to Apple is "How many of these were legacy units?". From browsing the support pages, I see hundreds of older Mac Book Pro users have the same problem.

Apple says that the problem is that I have non-Apple software, which is complete bull. Any upgrade should have taken into account older Mac Books, but apparently since the passing of Steve Jobs, Apple's reputation is no longer a priority.

Trying to explain to Apple reps that the problem is with El Capitan is like John Cleese of Monty Python explaining to Michael Palin that the parrot that he has just bought is completely dead!

My suggestion to Apple is to fix El Capitan, or at least supply an easy fix to revert back to an older OS.

Re-install the OS? Are you mad? It took me 4 days to back up my Hard Drive to an external drive.

Here is my Etrecheck report:

EtreCheck

EtreCheck version: 3.4 (420)

Report generated 2017-06-16 16:15:13

Download EtreCheck from https://etrecheck.com

Runtime: 8:40

Performance: Below Average

Click the [Lookup] links for more information from Apple Support Communities.

Click the [Details] links for more information about that line.

Click the [Remove/Report] links to remove adware or update the whitelist of legitimate software.

Click the [Clean up] link to delete unused files.

Problem: Other problem

Description:

DVD no longer works

Hardware Information: ⓘ

MacBook Pro (15-inch, Late 2008)

[Technical Specifications] - [User Guide] - [Warranty & Service]

MacBook Pro - model: MacBookPro5,1

1 2.4 GHz Intel Core 2 Duo (Duo) CPU: 2-core

4 GB RAM Upgradeable - [Instructions]

BANK 0/DIMM0

2 GB DDR3 1067 MHz ok

BANK 0/DIMM1

2 GB DDR3 1067 MHz ok

Bluetooth: Old - Handoff/Airdrop2 not supported

Wireless: en1: 802.11 a/b/g/n

Battery: Health = Normal - Cycle count = 2

Video Information: ⓘ

NVIDIA GeForce 9600M GT - VRAM: 256 MB

NVIDIA GeForce 9400M - VRAM: 256 MB

Color LCD 1440 x 900

Disk Information: ⓘ

Hitachi HTS543232L9SA02 disk0: (320.07 GB) (Rotational)

[Show SMART report]

(disk0s1) <not mounted> [EFI]: 210 MB

Macintosh HD (disk0s2 - Journaled HFS+) / [Startup]: 319.21 GB (174.20 GB free)

(disk0s3) <not mounted> [Recovery]: 650 MB

HL-DT-ST DVDRW GS21N ()

USB Information: ⓘ

USBBus

Apple, Inc. Apple Internal Keyboard / Trackpad

Apple Computer, Inc. IR Receiver

USBBus

Apple Inc. BRCM2046 Hub

Apple Inc. Bluetooth USB Host Controller

USB20Bus 15.98 GB

Apple Inc. Built-in iSight

USB2.0 Hub 15.98 GB

GENERAL GENERAL - UVC

Apple Inc. iPad

USB2.0 Hub 15.98 GB

USB2.0 Hub

Apple Inc. iPod 15.98 GB

USB20Bus

Generic USB Storage

Virtual disks: ⓘ

[redacted]’s iPod (disk2s2 - Journaled HFS+) /Volumes/Guy Bahuaud’s iPod : 15.98 GB (1.45 GB free)

Physical disk: iPod 15.98 GB (1.45 GB free)

System Software: ⓘ

OS X El Capitan 10.11.6 (15G1510) - Time since boot: about 4 hours

Gatekeeper: ⓘ

Mac App Store and identified developers

Possible adware: ⓘ

Adware: ~/Library/LaunchAgents/Manroling.update.plist

Adware: ~/Library/LaunchAgents/com.cinemapro1-2.agent.plist

Adware: ~/Library/LaunchAgents/com.extensions.updater69337.agent.plist

Adware: ~/Library/LaunchAgents/com.extensions.updater69337.ver

Adware: ~/Library/LaunchAgents/com.jdibackup.ZipCloud.autostart.plist

Adware: ~/Library/LaunchAgents/com.jdibackup.ZipCloud.backupstart.plist

Adware: ~/Library/LaunchAgents/com.jdibackup.ZipCloud.notify.plist

Adware: ~/Library/LaunchAgents/com.spigot.ApplicationManager.plist

Adware: ~/Library/Safari/Extensions/Olivernetko.safariextz

9 possible adware files found. [Remove/Report]

Clean up: ⓘ

/Library/LaunchAgents/com.symantec.errorreporter-periodicagent.NFM.plist

/Library/Application Support/Symantec/Silo/NFM/ErrorReporting/symerrorreporter --report current-user --nodaemon

Executable not found!

/Library/LaunchDaemons/com.sec.faxdb.plist

/Library/Printers/Samsung/Fax/FaxDB/faxdbd

Executable not found!

/Library/LaunchDaemons/com.symantec.errorreporter-periodic.NFM.plist

/Library/Application Support/Symantec/Silo/NFM/ErrorReporting/symerrorreporter --report local-domain --nodaemon

Executable not found!

~/Library/LaunchAgents/Manroling.update.plist

~/Library/Application Support/Manroling/Manroling.app/Contents/MacOS/AppNOS -trigger update -isDev 0 -installVersion 21180 -firstAppId 1434976216979282 -identity Manroling -sig NOSIGNATURE_SIGNATURE -agentUpdate 2

Executable not found!

com.adobe.ARM.[...].plist

/Applications/Adobe Reader.app/Contents/MacOS/Updater/Adobe Reader Updater Helper.app/Contents/MacOS/Adobe Reader Updater Helper

Executable not found!

com.apple.CSConfigDotMacCert-@me.com-SharedServices.Agent.plist

/System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framewo rk/Versions/A/Support/CSConfigDotMacCert -l ~/Library/Logs/CSConfigDotMacCert-@me.com-SharedServices.log -u [redacted]@me.com -t SharedServices -s

Executable not found!

~/Library/LaunchAgents/com.cinemapro1-2.agent.plist

~/Library/cinemapro1-2/Service.app/Contents/MacOS/Service --service --unique_id=C076E50DD179B3EF314195D99B3E272A --unique_data=c218caade6b94a612fba0b1bbf15f3e3

Executable not found!

~/Library/LaunchAgents/com.extensions.updater69337.agent.plist

~/Library/LaunchAgents/UpdateDownloader cmpId=2677 ibic=C076E50DD179B3EF314195D99B3E272A verifier=c218caade6b94a612fba0b1bbf15f3e3 extId=69337 updatejsondomain=http:/update.staticclientstorage.com statsdomain=http:/stats.staticclientstorage.com eventsdomain=http:/logs.staticclientstorage.com errorsdomain=http:/errors.staticclientstorage.com installerversion=01-27

Executable not found!

~/Library/LaunchAgents/com.jdibackup.ZipCloud.autostart.plist

open /Applications/ZipCloud.app/Contents/Resources/Utility.app -n --args 9 -l

Executable not found!

~/Library/LaunchAgents/com.jdibackup.ZipCloud.backupstart.plist

open /Applications/ZipCloud.app/Contents/Resources/Utility.app -n --args 8 -b

Executable not found!

~/Library/LaunchAgents/com.jdibackup.ZipCloud.notify.plist

open /Applications/ZipCloud.app/Contents/Resources/Utility.app --args 7 1

Executable not found!

~/Library/LaunchAgents/com.spigot.ApplicationManager.plist

~/Library/Application Support/Spigot/ApplicationManager --protect

Executable not found!

12 orphan files found. [Clean up]

Kernel Extensions: ⓘ

/Library/Extensions

[not loaded] com.microsoft.VirtualPC.Networking.1040 (7.0.2) [Lookup]

[loaded] com.movavi.driver.SoundGrabber (1.6.5 - SDK 10.9) [Lookup]

[loaded] com.symantec.SymXIPS (8.1 - SDK 10.10) [Lookup]

[loaded] com.symantec.internetSecurity.kext (7.4.2 - SDK 10.11) [Lookup]

[loaded] com.symantec.ips.kext (7.4.2 - SDK 10.11) [Lookup]

[loaded] com.symantec.nfm.kext (7.4.2 - SDK 10.11) [Lookup]

/System/Library/Extensions

[not loaded] com.devguru.driver.SamsungComposite (1.4.18 - SDK 10.6) [Lookup]

[not loaded] com.tomtom.driver.UsbEthernetGadget (1.0.0d1) [Lookup]

[not loaded] com.wacom.kext.pentablet (Pen Tablet 5.2.0-5) [Lookup]

/System/Library/Extensions/ssuddrv.kext/Contents/PlugIns

[not loaded] com.devguru.driver.SamsungACMControl (1.4.18 - SDK 10.6) [Lookup]

[not loaded] com.devguru.driver.SamsungACMData (1.4.18 - SDK 10.6) [Lookup]

[loaded] com.devguru.driver.SamsungMTP (1.4.18 - SDK 10.5) [Lookup]

[not loaded] com.devguru.driver.SamsungSerial (1.4.18 - SDK 10.6) [Lookup]

System Launch Agents: ⓘ

[not loaded] 8 Apple tasks

[loaded] 155 Apple tasks

[running] 76 Apple tasks

System Launch Daemons: ⓘ

[not loaded] 45 Apple tasks

[loaded] 158 Apple tasks

[running] 88 Apple tasks

Launch Agents: ⓘ

[failed] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a725c38014c95072f92651fb65e1bf9c8e43c37a 23d420d.plist (Adobe Systems, Inc. - installed 2017-01-12) [Lookup]

[loaded] com.divx.dms.agent.plist (? bf9bdaf7 afe1ef24 - installed 2017-06-09) [Lookup]

[loaded] com.divx.uninstall.converter.plist (Shell Script 9e90dee7 - installed 2017-05-23)

[loaded] com.divx.uninstall.player.plist (Shell Script 664f994d - installed 2017-05-23)

[loaded] com.divx.uninstall.preferences.plist (Shell Script 1cd1d81c - installed 2017-05-23)

[loaded] com.divx.update.agent.plist (DivX, LLC - installed 2017-06-09) [Lookup]

[loaded] com.google.keystone.agent.plist (Google, Inc. - installed 2017-03-28) [Lookup]

[failed] com.symantec.errorreporter-periodicagent.NFM.plist (? 505393bd 0 - installed 2016-03-17) [Lookup] - /Library/Application Support/Symantec/Silo/NFM/ErrorReporting/symerrorreporter: Executable not found!

[running] com.symantec.uiagent.application.NFM.plist (Symantec - installed 2017-04-27) [Lookup]

[failed] com.wacom.pentablet.plist (? 6e15f4bf bdb663af - installed 2010-07-25) [Lookup]

Launch Daemons: ⓘ

[loaded] com.adobe.ARMDC.Communicator.plist (Adobe Systems, Inc. - installed 2017-01-12) [Lookup]

[loaded] com.adobe.ARMDC.SMJobBlessHelper.plist (Adobe Systems, Inc. - installed 2017-01-12) [Lookup]

[failed] com.adobe.fpsaud.plist (? 2afb3af7 a0305b84 - installed 2017-06-14) [Lookup]

[loaded] com.google.keystone.daemon.plist (Google, Inc. - installed 2017-04-17) [Lookup]

[failed] com.sec.faxdb.plist (? 91b619f6 0 - installed 2014-10-11) [Lookup] - /Library/Printers/Samsung/Fax/FaxDB/faxdbd: Executable not found!

[loaded] com.symantec.SymLUHelper.NFM.plist (Symantec - installed 2017-06-15) [Lookup]

[loaded] com.symantec.UninstallerToolHelper.NFM.plist (Symantec - installed 2017-06-15) [Lookup]

[running] com.symantec.deepsight-extractor.NFM.plist (Symantec - installed 2017-06-15) [Lookup]

[failed] com.symantec.errorreporter-periodic.NFM.plist (? 6d6bbcf0 0 - installed 2016-03-17) [Lookup] - /Library/Application Support/Symantec/Silo/NFM/ErrorReporting/symerrorreporter: Executable not found!

[loaded] com.symantec.liveupdate.daemon.NFM.plist (Symantec - installed 2017-06-15) [Lookup]

[running] com.symantec.nfm.wps.plist (Symantec - installed 2017-06-15) [Lookup]

[running] com.symantec.sharedsettings.NFM.plist (Symantec - installed 2017-06-15) [Lookup]

[running] com.symantec.symdaemon.NFM.plist (Symantec - installed 2017-06-15) [Lookup]

[loaded] com.symantec.symqual.detail.NFM.plist (Symantec - installed 2017-06-15) [Lookup]

[loaded] com.symantec.symqual.panicreporter.NFM.plist (Symantec - installed 2017-06-15) [Lookup]

[loaded] com.symantec.symqual.submit.NFM.plist (Symantec - installed 2017-06-15) [Lookup]

User Launch Agents: ⓘ

[failed] Manroling.update.plist (? a993084b 0 - installed 2016-03-17) Adware! [Remove/Report]

[failed] com.adobe.ARM.[...].plist (? c8cc50de 0 - installed 2013-04-11) [Lookup] - /Applications/Adobe Reader.app/Contents/MacOS/Updater/Adobe Reader Updater Helper.app/Contents/MacOS/Adobe Reader Updater Helper: Executable not found!

[failed] com.apple.CSConfigDotMacCert-@me.com-SharedServices.Agent.plist (? ? ? - installed 2009-04-14) - /System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framewo rk/Versions/A/Support/CSConfigDotMacCert: Executable not found!

[failed] com.cinemapro1-2.agent.plist (? 4fce77ac 0 - installed 2016-03-17) Adware! [Remove/Report]

[failed] com.extensions.updater69337.agent.plist (? eb467e10 0 - installed 2015-05-22) Adware! [Remove/Report]

[not loaded] com.extensions.updater69337.ver (? 83dcefb7 ? - installed 2015-05-22) Adware! [Remove/Report]

[failed] com.jdibackup.ZipCloud.autostart.plist (? 37476595 0 - installed 2016-10-13) Adware! [Remove/Report]

[failed] com.jdibackup.ZipCloud.backupstart.plist (? 7c2b9dd 0 - installed 2016-10-13) Adware! [Remove/Report]

[failed] com.jdibackup.ZipCloud.notify.plist (? e0517c89 0 - installed 2016-10-13) Adware! [Remove/Report]

[failed] com.spigot.ApplicationManager.plist (? 120e9fba 0 - installed 2016-05-23) Adware! [Remove/Report]

User Login Items: ⓘ

Microsoft AU Daemon Application (? 0 - installed 2004-10-11)

(/Applications/Microsoft AutoUpdate.app/Contents/MacOS/Microsoft AU Daemon.app)

SpeechSynthesisServer Application

(/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks /SpeechSynthesis.framework/Versions/A/SpeechSynthesisServer.app)

iTunes Application

(/Applications/iTunes.app)

Norton Security Application

(/Applications/Norton Security.app)

Garmin Express Service Application (Garmin International - installed 2017-05-21)

(/Applications/Garmin Express.app/Contents/Library/LoginItems/Garmin Express Service.app)

KiesAgent Application - Hidden (? 0 - installed 2014-04-22)

(/Applications/Kies.app/Contents/MacOS/KiesAgent.app)

ConnectService Application

(/Library/Application Support/ArcSoft/Connect Service/ConnectService.app)

Internet Plug-ins: ⓘ

o1dbrowserplugin: 5.41.3.0 (installed 2015-12-15) [Lookup]

Google Earth Web Plug-in: 7.1 (installed 2015-05-17) [Lookup]

Default Browser: 601 (installed 2016-07-27)

Flip4Mac WMV Plugin: 2.4.2.4 (installed 2012-03-20) [Lookup]

RealPlayer Plugin: Unknown (installed 2013-05-31) [Lookup]

AdobePDFViewerNPAPI: 17.009.20044 (installed 2017-04-11) [Lookup]

FlashPlayer-10.6: 26.0.0.131 (installed 2017-06-16) [Lookup]

DivX Web Player: 3.8.3.423 (installed 2017-05-23) [Lookup]

Silverlight: 5.0.61118.0 (installed 2012-12-04) [Lookup]

QuickTime Plugin: 7.7.3 (installed 2017-05-24)

Flash Player: 26.0.0.131 (installed 2017-06-16) [Lookup]

googletalkbrowserplugin: 5.41.3.0 (installed 2015-12-11) [Lookup]

iPhotoPhotocast: 7.0 (installed 2010-04-12)

AdobePDFViewer: 17.009.20044 (installed 2017-04-11) [Lookup]

Safari Extensions: ⓘ

[enabled] Olivernetko - Olivernetko - http://www.olivernetko.com/faq#olivernetko (installed 2015-08-26) Adware! [Remove/Report]

3rd Party Preference Panes: ⓘ

Flash Player (installed 2017-06-14) [Lookup]

Flip4Mac WMV (installed 2012-03-20) [Lookup]

Time Machine: ⓘ

Time Machine not configured!

Top Processes by CPU: ⓘ

18% kernel_task

7% SymDaemon

7% WindowServer

5% AddressBookSourceSync

2% fsck_msdos

Top Processes by Memory: ⓘ

700 MB kernel_task

586 MB firefox

116 MB SymDaemon

78 MB mds_stores

65 MB Finder

Top Processes by Energy Use: ⓘ

7.86 WindowServer

4.50 SymDaemon

1.56 ConnectService

0.94 diskarbitrationd

Virtual Memory Information: ⓘ

719 MB Available RAM

18 MB Free RAM

3.30 GB Used RAM

701 MB Cached files

160 MB Swap Used

Software installs: ⓘ

Garmin Express: (installed 2017-05-21)

DivX: (installed 2017-06-09)

Adobe Flash Player: (installed 2017-06-13)

Norton for Mac.Universal: (installed 2017-06-16)

Adobe Flash Player: (installed 2017-06-16)

Install information may not be complete.

Diagnostics Information: ⓘ

2017-06-16 11:08:36 Last shutdown cause: -2 - Unknown

Okay my paranoid take on this. IMHO a Macbook Pro is not portable without an internal disc drive but I think Apple is tired of fixing them. It is not a bottom line win, they are very shareholder driven and Apple is not exactly a charity. But to me this means no more Garage Record Producer. Is what it means! To me it is very sad. I lose my own independence and control over my own work if I need to send my recording out to a shop for printing:(

People in the music business can be wonderful but they can also be envious and not supoort your artistic endeavours because of whatever feelings of low self-esteem, anger, envy or maybe just a mean sense of humor, etc.) Add your guess here____

Apple is not helping us individuate ourselves at this juncture and making us more dependent on a very unfair royalty system which has always been unfair. Bill Maher asked Iced Cube is Spotify worse or just a different way of doing it, i.e, the cheapness of Spotify to artists. Apple Music makes me pay to play and my older family members (who have lived healthily to be old and still vibrant)

do not want to buy or access Apple Music For $10/mo. Getting them to Soundcloud is hard enough. But I do love(Apple love, here) how iTunes made albums out of my GarageBand projects that I wouldn't even have thought to make. Thank you!

But what about my older fans? Or busier or maybe younger but not super tech-savvy or not Apple fans? So I used to have Abbey Road at my desk and now you are saying it's over?!

kitcatalina wrote:

Yes. I installed el capitan and internal dvd drive stopped reading.

Seems others have had the same experience.

quid pro quo.

I'll be happy to provide an etrecheck report if you tell me what it is.

tx,

Etrecheck is a diagnostic tool created by Etresoft, a respected member of this community to help us detect possible problems. It is recommended on these forums dozens of times every day, so the ones trying to help can have an idea of what those having problems have installed. It does not convey any personal information.

Each mac has a different set of software installed, and this makes it easier to provide appropriate advice.

El Captain killed my superdrive also. I see the software, but a minute after i insert a disc, the software disappears. I tryed all the fixes but gone again after inserting a disc. Atually noticed it having minor issues after Maverick. I thought about getting the Apple external drive but don't know if my imac will recognize it. I've read Apple is killing the superdrive everywhere on the net.
I think its a move to force customers to go streaming or download. To bad Apple is screwing people who still enjoy a hard copy of there music.

If you look in the system folder, you'll see the CD & DVD App click it, insert a disc and watch one by one the options diasappear. Even after you do the lame fixes that temporarally repost the app.

My superdrive software disappears after i insert a disc. I reappears after i do the fix you posted, but disappears again after i inset another disc. Apple sells an external flat burner, but not sure if my mac will do the same on that. Considering buying a used G4 imac running panther just to burn disc, keep it offline so Apple cannot screw with it.

Try resetting the SMC and PRAM per the instructions in iMac SMC and PRAM reset. My SuperDrive has been working perfectly with El Capitan, my guess is your problem may be a coincidence.

Lee please quit the ranting, El Capitan did not do anything to your SuperDrive nor is the issue widespread, you are the first that I have seen to report this!

Fully describe what you mean by

• has lost its built-in DVD drive.
• does not recognize the drive. Finder cannot "see" it

Once you describe in detail what you mean then we can begin to troubleshoot the issue. Until then please a SMC and PRAM reset, you may need to do these 2-3 times. Instructions are in iMac SMC and PRAM reset