SOUND PROBLEM ON MACBOOK

. No sound working. Sound icon is grey and the only option available in the sound panel is numeric output. I've re-install the OS and nothing seem to work.

It sounds like your sound output is broken.
Contact Apple using www.apple.com/support/contact if you are in a country that supports it or call the appropriate phone number on this page. Alternatively carry the MacBook in to an Apple retail store or service provider to ask for an estimate.
Best of luck.

Similar Messages

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  • Sound problem on MacBook Pro with XP

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    Message was edited by: stk514

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    Open System Preferences > Sound > Sound Effects
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    Now open Mail. From the Mail menu bar clik Mail > Preferences then select the General tab.
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    Speaker Volume.
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    The sound on my macbook pro is not working. When I increase the sound, the icon appears as if everything is working, but no sound comes from the speakers. Earphones don't work either. I have tried a PRAM reset but at times, this doesn't even work. It's really frustrating having to restart my computer every time I want the sound to work, and even when I do that, theres a 50 50 chance of it working again. It generally happens after my laptop goes to sleep and I wake it up. Has anyone else had this problem and fixed it or even know what caused it?
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    1. System Preference > Sound > Output > Internal Speakers
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        Make sure Mute is not enabled.
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        If you see red light in the headphone port, plug the headphone
        in and out of the port 5 or 6 times to flip the microswitch inside.
        Sound output may be stuck in the digital mode.
    3. Reset SMC.     http://support.apple.com/kb/HT3964
        Choose the method for:
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        Highlight  Internal Speakers
        Make sure that Mute is not enabled.
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        If you see red light in the headphone port, plug the headphone
        in and out of the port 5 or 6 times to flip the microswitch inside.
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    3. Reset PRAM.  http://support.apple.com/kb/PH4405
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        Choose the method for:
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        Click the Built-in Output.
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    /M

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  • No Sound, Safari Slow & MacBook Pro Very Slow after upgrading to Yosemite.

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    Upgrading to Yosemite has resulted in the following issues with my computer/laptop:
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    Problem description:
    MacBook Pro has been running slowly ever since upgrading to Yosemite.
    EtreCheck version: 2.0.11 (98)
    Report generated January 13, 2015 at 5:30:02 AM EST
    Hardware Information: ℹ️
      MacBook Pro (13-inch, Mid 2009) (Verified)
      MacBook Pro - model: MacBookPro5,5
      1 2.53 GHz Intel Core 2 Duo CPU: 2-core
      4 GB RAM Upgradeable
      BANK 0/DIMM0
      2 GB DDR3 1067 MHz ok
      BANK 1/DIMM0
      2 GB DDR3 1067 MHz ok
      Bluetooth: Old - Handoff/Airdrop2 not supported
      Wireless:  en1: 802.11 a/b/g/n
    Video Information: ℹ️
      NVIDIA GeForce 9400M - VRAM: 256 MB
      Color LCD 1280 x 800
    System Software: ℹ️
      OS X 10.10.1 (14B25) - Uptime: 14:36:15
    Disk Information: ℹ️
      Hitachi HTS545050B9SA02 disk0 : (500.11 GB)
      S.M.A.R.T. Status: Verified
      EFI (disk0s1) <not mounted> : 210 MB
      Mac HD (disk0s2) /  [Startup]: 499.25 GB (61.56 GB free)
      Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
      OPTIARC  DVD RW AD-5960S 
    USB Information: ℹ️
      Apple Inc. Built-in iSight
      Apple Internal Memory Card Reader
      Apple Inc. Apple Internal Keyboard / Trackpad
      Apple Computer, Inc. IR Receiver
      Apple Inc. BRCM2046 Hub
      Apple Inc. Bluetooth USB Host Controller
    Gatekeeper: ℹ️
      Mac App Store and identified developers
    Kernel Extensions: ℹ️
      /Applications/Parallels Access.app
      [loaded] com.parallels.virtualsound (1.0.27 27 - SDK 10.6) Support
      /Applications/Parallels Desktop.app
      [not loaded] com.parallels.kext.hidhook (9.0 24217.979618) Support
      [not loaded] com.parallels.kext.hypervisor (9.0 24217.979618) Support
      [not loaded] com.parallels.kext.netbridge (9.0 24217.979618) Support
      [not loaded] com.parallels.kext.usbconnect (9.0 24217.979618) Support
      [not loaded] com.parallels.kext.vnic (9.0 24217.979618) Support
      /System/Library/Extensions
      [loaded] com.Cycling74.driver.Soundflower (1.5.3 - SDK 10.6) Support
    Problem System Launch Agents: ℹ️
      [failed] com.apple.CallHistorySyncHelper.plist
      [failed] com.apple.Maps.pushdaemon.plist
      [failed] com.apple.telephonyutilities.callservicesd.plist
    Problem System Launch Daemons: ℹ️
      [failed] com.apple.audio.coreaudiod.plist
      [failed] com.apple.awdd.plist
      [failed] com.apple.ctkd.plist
      [failed] com.apple.nsurlsessiond.plist
      [failed] com.apple.wdhelper.plist
    Launch Agents: ℹ️
      [loaded] com.citrix.AuthManager_Mac.plist Support
      [running] com.citrix.ServiceRecords.plist Support
      [loaded] com.google.keystone.agent.plist Support
      [running] com.kodak.BonjourAgent.plist Support
      [loaded] com.oracle.java.Java-Updater.plist Support
      [loaded] com.parallels.mobile.prl_deskctl_agent.launchagent.plist Support
      [running] net.juniper.pulsetray.plist Support
    Launch Daemons: ℹ️
      [loaded] com.adobe.fpsaud.plist Support
      [loaded] com.google.keystone.daemon.plist Support
      [loaded] com.oracle.java.Helper-Tool.plist Support
      [loaded] com.oracle.java.JavaUpdateHelper.plist Support
      [running] com.parallels.mobile.dispatcher.launchdaemon.plist Support
      [loaded] com.parallels.mobile.kextloader.launchdaemon.plist Support
      [invalid?] com.rogueamoeba.hermes.plist Support
      [running] net.juniper.AccessService.plist Support
      [not loaded] net.juniper.UninstallPulse.plist Support
    User Launch Agents: ℹ️
      [loaded] com.adobe.ARM.[...].plist Support
      [invalid?] com.kodak.KODAK AiO Annual Opt.plist Support
      [loaded] com.kodak.KODAK AiO Firmware Updater.plist Support
      [loaded] com.kodak.KODAK AiO Software Updater.plist Support
      [running] com.parallels.mobile.startgui.launchagent.plist Support
    User Login Items: ℹ️
      None
    Internet Plug-ins: ℹ️
      o1dbrowserplugin: Version: 5.38.6.0 - SDK 10.8 Support
      Default Browser: Version: 600 - SDK 10.10
      Flip4Mac WMV Plugin: Version: 3.0.0.126   - SDK 10.8 Support
      OfficeLiveBrowserPlugin: Version: 12.3.5 Support
      AdobePDFViewerNPAPI: Version: 11.0.10 - SDK 10.6 Support
      FlashPlayer-10.6: Version: 16.0.0.235 - SDK 10.6 Support
      Silverlight: Version: 5.1.10411.0 - SDK 10.6 Support
      Flash Player: Version: 16.0.0.235 - SDK 10.6 Support
      iPhotoPhotocast: Version: 7.0 - SDK 10.8
      CitrixICAClientPlugIn: Version: 11.5.0 - SDK 10.6 Support
      googletalkbrowserplugin: Version: 5.38.6.0 - SDK 10.8 Support
      AdobePDFViewer: Version: 11.0.10 - SDK 10.6 Support
      GarminGpsControl: Version: 4.0.4.0 Release - SDK 10.6 Support
      QuickTime Plugin: Version: 7.7.3
      JavaAppletPlugin: Version: Java 7 Update 71 Check version
    User Internet Plug-ins: ℹ️
      CitrixOnlineWebDeploymentPlugin: Version: 1.0.105 Support
      WebEx64: Version: 1.0 - SDK 10.6 Support
      WebEx: Version: 1.0 Support
    3rd Party Preference Panes: ℹ️
      Flash Player  Support
      Flip4Mac WMV  Support
      Java  Support
      MacFUSE  Support
      Perian  Support
    Time Machine: ℹ️
      Skip System Files: NO
      Mobile backups: ON
      Auto backup: YES
      Volumes being backed up:
      Mac HD: Disk size: 499.25 GB Disk used: 437.69 GB
      Destinations:
      Opt_NHD_1 [Local]
      Total size: 999.74 GB
      Total number of backups: 6
      Oldest backup: 2014-07-10 03:42:30 +0000
      Last backup: 2014-11-08 22:33:01 +0000
      Size of backup disk: Too small
      Backup size 999.74 GB < (Disk used 437.69 GB X 3)
    Top Processes by CPU: ℹ️
          1% hidd
          1% WindowServer
          1% launchd
          0% syslogd
          0% notifyd
    Top Processes by Memory: ℹ️
      120 MB Evernote
      107 MB Mail
      86 MB iTunes
      77 MB Finder
      77 MB WindowServer
    Virtual Memory Information: ℹ️
      41 MB Free RAM
      1.25 GB Active RAM
      1.22 GB Inactive RAM
      675 MB Wired RAM
      10.90 GB Page-ins
      1.07 GB Page-outs

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  • Thereis no sound on my macbook air. I have checked the volume and mute controls and the internal speaker are selected.  any one any ideas please.

    there is no sound on my macbook air. I have checked the volume and mute controls and the internal speaker are selected.  any one any ideas please.

    Hopefully one of these steps should solve the problem.
    1. Remove the headphone.
        If you see red light in the headphone port, plug the headphone
        in and out of the port 5 or 6 times to flip the microswitch inside.
        Sound output may be stuck in the digital mode.
    2. Reset PRAM.  http://support.apple.com/kb/PH4405
    3. Reset SMC.     http://support.apple.com/kb/HT3964
        Choose the method for:
        "Resetting SMC on portables with a battery you should not remove on your own".
    4. Applications > Utilities > Audio MIDI Setup
        Audio Devices window
        Side Bar
        Click the Built-in Output.
        Under Mute any of the boxes checked? If so, uncheck it.
    Best.

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