Why can I not restart or shut down my imac without using the power button?

why can I not restart or shut down my imac without using the power button?

Reset the SMC and then try a restart or shutdown from the drop down menus.
Intel-based Macs: Resetting the System Management Controller (SMC)
Then if that doesn't work, backup because you have an OS X issue that will require either a repair or reinstall.

Similar Messages

  • After last maverick update macbook pro can't be shut down anymore - only by using the power button

    Hello!
    I hope that someone can help: after the last Maverick update I can't shut down the computer anymore - or restart. I need to use the power button. Furthermore several apps don't close when they are supposed to be closed - I always have to check with Force Quit. I could live with that, but not being able to shut down or restart the Mac is more than tiresome. Can anybody help?

    These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
    Launch the Console application in any of the following ways:
    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
    ☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
    ☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
    Step 1
    For this step, the title of the Console window should be All Messages. If it isn't, select
              SYSTEM LOG QUERIES ▹ All Messages
    from the log list on the left. If you don't see that list, select
              View ▹ Show Log List
    from the menu bar at the top of the screen.
    In the top right corner of the Console window, there's a search box labeled Filter. Initially the words "String Matching" are shown in that box. Enter "BOOT_TIME" (without the quotes.)
    Each message in the log begins with the date and time when it was entered. Note the timestamps of the BOOT_TIME log messages, which refer to the times when the system was started. Now clear the search box and scroll back in the log to the last boot time when you had the problem. Select the messages logged before the boot, during the time something abnormal was happening. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
    For example, if the system was unresponsive or was failing to shut down for three minutes before you forced a restart, post the messages timestamped within three minutes before the boot time, not after. Please include the BOOT_TIME message at the end of the log extract—not at the beginning.
    If there are long runs of repeated messages, please post only one example of each. Don’t post many repetitions of the same message.
    When posting a log extract, be selective. A few dozen lines are almost always more than enough.
    Some private information, such as your name, may appear in the log. Anonymize before posting.
    Please don't indiscriminately dump thousands of lines from the log into this discussion.
    Please don't post screenshots of log messages—post the text.
    Step 2
    In the Console window, select
              DIAGNOSTIC AND USAGE INFORMATION ▹ System Diagnostic Reports
    (not Diagnostic and Usage Messages) from the log list on the left. If you don't see that list, select
              View ▹ Show Log List
    from the menu bar.
    There is a disclosure triangle to the left of the list item. If the triangle is pointing to the right, click it so that it points down. You'll see a list of reports. A crash report has a name that begins with the name of the crashed process and ends in ".crash". A panic report has a name that begins with "Kernel" and ends in ".panic". A shutdown stall report has a name that ends in ".shutdownstall". Select the most recent of each, if any. The contents of the report will appear on the right. Use copy and paste to post the entire contents—the text, not a screenshot. It's possible that none of these reports exists.
    I know the report is long, maybe several hundred lines. Please post all of it anyway.
    If you don't see any reports listed, but you know there was a crash or panic, you may have chosen Diagnostic and Usage Messages from the log list. Choose DIAGNOSTIC AND USAGE INFORMATION instead.
    In the interest of privacy, I suggest that, before posting, you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if it’s present (it may not be.)
    Please don’t post other kinds of diagnostic report—they're very long and rarely helpful.

  • Can't get MAC to shut down and start up via the schedule button in system preferences energy saver. Is there another way?

    Can't get MAC to shut down and start up via the schedule button in system preferences energy saver. Is there another way?

    Try this to start:
    Repair the Hard Drive and Permissions
    Boot from your Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list.  In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU 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 DU and return to the installer.
    If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.

  • When i click on my external hard drive the screen goes dark and a msg pops up saying i have to shut down my computer by holding the power button and then restart it. when i do that i get the same result every time. it worked perfectly last night..

    when i click on my external hard drive the screen goes dark and a msg pops up saying i have to shut down my computer by holding the power button and then restart it. when i do that i get the same result every time. it worked perfectly last night..

    These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
    Launch the Console application in any of the following ways:
    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
    ☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
    ☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
    Ifou don't see any reports listed, but you know there was a panic, you may have chosen Diagnostic and Usage Messages from the log list. Choose DIAGNOSTIC AND USAGE INFORMATION instead.
    In the Console window, select
              DIAGNOSTIC AND USAGE INFORMATION ▹ System Diagnostic Reports
    (not Diagnostic and Usage Messages) from the log list on the left. If you don't see that list, select
              View ▹ Show Log List
    from the menu bar.
    There is a disclosure triangle to the left of the list item. If the triangle is pointing to the right, click it so that it points down. You'll see a list of reports. A panic report has a name that begins with "Kernel" and ends in ".panic". Select the most recent one. The contents of the report will appear on the right. Use copy and paste to post the entire contents—the text, not a screenshot.
    If you don't see any reports listed, but you know there was a panic, you may have chosen Diagnostic and Usage Messages from the log list. Choose DIAGNOSTIC AND USAGE INFORMATION instead.
    In the interest of privacy, I suggest that, before posting, you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if it’s present (it may not be.)
    Please don’t post other kinds of diagnostic report.
    I know the report is long, maybe several hundred lines. Please post all of it anyway.

  • RMBP: Sometimes, after having been shut down, i have to press the power button several times before the machine starts up. It's 3 weeks old, and this has happened 2 times now. Is there something wrong with my rMBP?

    rMBP: Sometimes, after having been shut down, i have to press the power button several times before the machine starts up. It's 3 weeks old, and this has happened 2 times now. Is there something wrong with my rMBP?

    Did you purchase the Mac new?
    You have 14 calendar days from the time your items are delivered to initiate a return as noted here.
    Even though you are past the 14 day limit, if it were me, I'd take the Mac back and explain what's going on. Your Mac should work out of the box.
    message edited by:  cs

  • Can you have PXIe 1062Q turn on without using the power button

    I am using a PXIe-1062Q for a test project that will be inside of a protective case.  The power button to the chassis will be covered by a plate on the protective case that will make it annoying and difficult to power on using the power button on the chassis.  The chassis will be plugged into a trip-lite power strip that is mounted in the case.  Is there any way that I can have the chassis power on when I turn on the power strip?
    Solved!
    Go to Solution.

    I found an alternate route.  Under the BIOS of the controller I changed the AC power Loss settings to TURN on after the AC power is returned.  This allows me to use the power strip in my configuration to control the AC power distributed to the controller.  The following steps will describe how I completed this.
    Power on the PXIe-8115 controller.
    A message will appear on your monitor Press <DEL> to enter SETUP
    Select "delete" (quickly, because you don't have much time before the window disappears and the controller continues to load normally.
    This will open up the BIOS Main Menu
    Select Advanced tab ( use arrow keys to highlight different tabs and selections, select specific setting to change with "enter"
    Select >>Power/Rest Configuration
    Change configuration to power on when AC power is restored.
    The controller can be shut down normally using the start menu and "shut down"
    The chassis's power button is still capable of turning on the power to the controller, but now when I shut off the AC power strip, and then return the power, the chassis controller powers up.

  • How can I start up my macbook without using the power button ?

    Hi guys,
    I think my macbook's keyboard/trackpad/power have died. I was wondering if there's anyway to start up my macbook without the power button, I was thinking about an external keyboard that would hae a power button on it, I don't know ...
    I have not used my Macbook for the past 4 days and i think it's making me sick ...
    Thanks !

    hey,
    So i bought a G3 keyboard with the power button and i just received it but my macbook still doesn't want to start up.
    It's pretty strange because my macbook was still running when the top case died and I had to unplug it cause i couldn't shut it down so I was sure that buying this keyboard would make it work but it doesn't. I am wondering if it could be from the power button that would be died cause when i push it, it doesn't feel like the one on my macbook . It's pretty hard to explain but could someone tell my how it supposed to be when i push the power button . On my keyboard it just goes down and goes up without doing anything...
    I'm pretty sad cause I haven't used my macbook for weeks and i'm started thinking it will never start up again ...
    Thanks

  • Hello my ps 2014 can not open it shuts down after 10-15 seconds. the old version run fine

    Hello
    my ps 2014 can not open it shuts down after 10-15 seconds. the old version run fine

    There are several things you can do I understand.
    1) Check the battery condition using a program like the widget iStatPro (free). If the battery health is less than 80% then Apple have a free replacement program for this.
    2) Switch the machine off and disconnect the power supply. Remove the battery and leave out for several minutes - to allow complete discharge of all electronic components, I think. Then re-instal the battery, etc and restart. I'm not 100% clear on all steps in this procedure but it provides a reset which sometimes resolves problems at least temporarily.
    3) Disconnect all peripherals and see how it works. One of these might be calling for more power than it should.
    Neville

  • My Iphone 5 got stuck when I did rest all Settings in my iphone 5 and my iphone do not restart or shut down. The phone do not have the ability to shut down.

    my Iphone 5 got stuck when I did rest all Settings in my iphone 5 and my iphone do not restart or shut down. The phone do not have the ability to shut down.

    Did you try to press and hold the home and sleep button for about 10sec, until the Apple logo comes back again? You will not lose data by resetting the device.
    If this does not work, try connecting in recovery mode, explained in this article:
    If you can't update or restore your iOS device

  • Now that I upgraded to Maverick on my Mac air, I can not use the power button to shut down the computer anymore. any suggestions?

    Now that I upgraded to Maverick on my Mac air, I can not use the power button to shut down the computer anymore. I now have to go to the apple icon in the upper left corner.  Any short cuts instead of going to the apple in the top left corner and hitting shut down.  Doing that all the time, I feel like I am back at work using a "Windows" computer.

    This a is tricky one, but you can still do it. Instead of pressing the power button, hold it down for a few seconds and then you'll see the shut down options dialog pop up.
    I guess they were trying to prevent accidental touching of that button. They did something similar with the Eject button a few versions ago, where you have to hold down Eject instead of just tapping it so that you don't pop out a CD by mistake.

  • I downloaded the new Firefox but it constantly freezes, doing absolutely nothing, and I can't even close it from my Mac dock bar, I have to turn off my laptop using the power button as Firefox won't let me shut down. What can I do?

    Hi
    I recently downloaded the new Firefox (Firefox 4, I think - you can tell I'm very tech savvy!) and it constantly freezes, I can't do anything with it at all - I can't even close it from the icon in my Mac dock bar.
    I have tried restarting my computer - though I have to turn it off by using the power button as as Firefox is open and totally unresponsive it won't let me shut down. About a minute after re-starting Firefox, restoring my tabs or starting afresh, it freezes again.
    This is obviously very annoying and I'm not sure what I can do about it. Firefox is my preferred browser, and I'd really like to be able to use it again!

    This is not a reply. I just want to elaborate on this problem.
    My computer freezes occasionally when it is used after being sleep for a while. The spinning ball appears and everything is totally disabled. Nothing on the keyboard works.
    The mouse moves, but does not work.
    The only solution is to turn the power off and on (losing all data in open applications.)
    I kept the System monitor running on the side to find out which program was running when the computer froze. The Monitor as well as all other applications froze, but the data showed:
    Firefox 18.4%
    Activity Monitor 0.9%
    Firefox Plugin 0.2%
    This is all the information I have. By the way, I am using iMac with OS 10.6.

  • Hi, I cannot restart or shut down my MAC and get the message Geneio.it installer is cancelling your request. Please shut down and retry. However, I cannot seem to exit that application and I have no idea where it came from. Thanks

    Hi, I cannot restart or shut down my MAC and get the message Geneio.it installer is cancelling your request. Please shut down and retry. However, I cannot seem to exit that application and I have no idea where it came from. Thanks
    Could this be a virus?

    Hold down the Power button until the computer shuts down.
    The Safe Mac » Adware Removal Guide - Genieo
    The Safe Mac » Adware Removal Guide
    Helpful Links Regarding Malware Protection
    An excellent link to read is Tom Reed's Mac Malware Guide.
    Also, visit The XLab FAQs and read Detecting and avoiding malware and spyware.
    See these Apple articles:
              Mac OS X Snow Leopard and malware detection
              OS X Lion- Protect your Mac from malware
              OS X Mountain Lion- Protect your Mac from malware
              About file quarantine in OS X
    If you require anti-virus protection Thomas Reed recommends using Dr.Web Light from the App Store. It's free, and since it's from the App Store, it won't destabilize the system. If you prefer one of the better known commercial products, then Thomas recommends using Sophos.(Thank you to Thomas Reed for these recommendations.) If you already use Sophos, then be aware of this if you are using Mavericks: OS X Mavericks- Sophos Anti-Virus on-access scanner versions 8.0 - 9.1 may cause unexpected restarts
    From user Joe Bailey comes this equally useful advice:
    The facts are:
    1. There is no anti-malware software that can detect 100% of the malware out there.
    2. There is no anti-malware that can detect anything targeting the Mac because there
         is no Mac malware in the wild, and therefore, no "signatures" to detect.
    3. The very best way to prevent the most attacks is for you as the user to be aware that
         the most successful malware attacks rely on very sophisticated social engineering
         techniques preying on human avarice, ****, and fear.
    4. Internet popups saying the FBI, NSA, Microsoft, your ISP has detected malware on
        your computer is intended to entice you to install their malware thinking it is a
        protection against malware.
    5. Some of the anti-malware products on the market are worse than the malware
        from which they purport to protect you.
    6. Be cautious where you go on the internet.
    7. Only download anything from sites you know are safe.
    8. Avoid links you receive in email, always be suspicious even if you get something
        you think is from a friend, but you were not expecting.
    9. If there is any question in your mind, then assume it is malware.

  • Macbook pro wont shut down without holding the power button nor cycle for updates to restart.

    macbook pro wont shut down without holding the power button nor cycle for updates to restart

    Sorry I said sorta wrong. I can shut down and I can update to the point of restart but it just sat for 45 minutes after an update. It goes through the update and to restart then the bars chase each other in a circle and it never restarts. So I hit the power button and go through normal reboot but loosing the update in the process. It does not matter how long I wait for a natural reboot after an update or click to restart it will chase the little bar in circles all day literally and never reboot.

  • Why can i not get a preview of my emails now in the lock screen anymore

    why can i not get a preview of my emails now in the lock screen anymore

    I understand your discontent regarding the delayed availability of our reps when you call us juliusb85! We offer other customer service alternative for you like Twitter @VZWSupport and Facebook http://fb.me/Verizon or we can assist you here also. However, please keep in mind that this is a peer to peer forum and while our Social Media team monitors the posts, the best way to get immediate assistance when network issues are suspected is to call 800-922-0204 from a different line to troubleshoot device or send us a message on twitter at @VZWSupport.
      AntonioC_VZW
    Follow us on Twitter at www.twitter.com/VZWSupport

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    I have the exact same problem.  I just updated to 4.3.3 and now my inline controls on my earphones don't work.  The earphones work, but the controls don't.  It doesn't even recognize that there is a mic attached.  Even with the earphones in it still uses the built in mic. Why did my controls stop working?!

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