Muffled sound with mac book pro early 2011

muffled sound with mac book pro early 2011

Hi younesfromsouth pasadena,
If you are having issues connecting an external display to your MacBook Pro, but the same display and adapter appear to be working fine with another similar computer, you may find the troubleshooting steps outlined in the following article helpful:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
Regards,
- Brenden

Similar Messages

  • I upgrade my MAC BOOK PRO EARLY 2011 and it crash upon login

    Hi,
    I have installed Mavericks os x 10.9.3 to my mac book pro early 2011 and afte that it crash every time I log in.
    I tried many things such as:
    1. I check teh disk health by command +R and it showes green status means it is OK
    2. I tries to safe boot and it worked and I am able to log in and stay in to it ..infact writing this in safe mode ..
    3. I tried moving many of teh thried pary software in trash such as plex, vuze, u torrent etc..and also erazed trash box
    4. I also hide log in items or just mius most od those except TmLogin Mgr that does not allow to minus...I hope you understood this what I did ..simple system pref --> user and group and the login itms are removed
    STILL same issue it crash ever time I log in normally..
    one more point my key board was little damaged may be I say nmber SIX key does not work after little milk spill on this but after that it was unning just fine since last 3 month
    At the end I would like to put this report content ..sorry I know this is not good to put all this crap but it hard to understand if it hide some important infor that help you to suggest me the solution..
    I saw your nice responseall around on the form and I am kind of sure that you will be able to help me with this ..
    Also please tell me how to get back up in sfae mode I connected my external drive but it didnt show up in finder and I tried using time machine but I was nt even able to figure out what to do in that..may be I bi scare of doing trial and error ...
    Thanks. AJ
    Anonymous UUID:       AA3350D8-85AB-5CB5-2E3C-DD7073590DBD
    Thu May 22 22:38:01 2014
    panic(cpu 1 caller 0xffffff80294526ff): "a freed zone element has been modified: expected 0xdeadbeefdeadbeef but found 0, bits changed 0xdeadbeefdeadbeef, at offset 8 of 128 in zone: kalloc.128"@/SourceCache/xnu/xnu-2422.100.13/osfmk/kern/zalloc.c:461
    Backtrace (CPU 1), Frame : Return Address
    0xffffff80c2c4b1e0 : 0xffffff8029422fa9
    0xffffff80c2c4b260 : 0xffffff80294526ff
    0xffffff80c2c4b2c0 : 0xffffff8029451df9
    0xffffff80c2c4b3c0 : 0xffffff802942aa6f
    0xffffff80c2c4b3f0 : 0xffffff80297d3b84
    0xffffff80c2c4b430 : 0xffffff802978cc6e
    0xffffff80c2c4b4e0 : 0xffffff802978c8cc
    0xffffff80c2c4b560 : 0xffffff80296000c0
    0xffffff80c2c4b5d0 : 0xffffff80295f5a55
    0xffffff80c2c4b6c0 : 0xffffff80295fc756
    0xffffff80c2c4b710 : 0xffffff80295fc25e
    0xffffff80c2c4b790 : 0xffffff80295df064
    0xffffff80c2c4bb10 : 0xffffff80297b5c2c
    0xffffff80c2c4bb70 : 0xffffff80295dfe4b
    0xffffff80c2c4bbc0 : 0xffffff80295f56d0
    0xffffff80c2c4bc00 : 0xffffff80295f149a
    0xffffff80c2c4bd80 : 0xffffff80295e96dc
    0xffffff80c2c4bf50 : 0xffffff8029840653
    0xffffff80c2c4bfb0 : 0xffffff80294f3c56
    BSD process name corresponding to current thread: com.apple.intern
    Mac OS version:
    13D65
    Kernel version:
    Darwin Kernel Version 13.2.0: Thu Apr 17 23:03:13 PDT 2014; root:xnu-2422.100.13~1/RELEASE_X86_64
    Kernel UUID: ADD73AE6-88B0-32FB-A8BB-4F7C8BE4092E
    Kernel slide:     0x0000000029200000
    Kernel text base: 0xffffff8029400000
    System model name: MacBookPro8,1 (Mac-94245B3640C91C81)
    System uptime in nanoseconds: 93393964240
    last loaded kext at 39308701672: com.apple.driver.AudioAUUC          1.60 (addr 0xffffff7fab1e5000, size 28672)
    loaded kexts:
    com.trendmicro.kext.KERedirect          1.0.0
    com.apple.driver.AudioAUUC          1.60
    com.apple.driver.AppleHWSensor          1.9.5d0
    com.apple.driver.AppleHDAHardwareConfigDriver          2.6.1f2
    com.apple.driver.AppleTyMCEDriver          1.0.2d2
    com.apple.driver.AGPM          100.14.15
    com.apple.driver.AppleMikeyHIDDriver          124
    com.apple.driver.AppleHDA          2.6.1f2
    com.apple.filesystems.autofs          3.0
    com.apple.iokit.IOBluetoothSerialManager          4.2.4f1
    com.apple.driver.ApplePolicyControl          3.5.26
    com.apple.driver.AppleUpstreamUserClient          3.5.13
    com.apple.driver.AppleSMCLMU          2.0.4d1
    com.apple.iokit.IOBluetoothUSBDFU          4.2.4f1
    com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport          4.2.4f1
    com.apple.driver.AppleSMCPDRC          1.0.0
    com.apple.driver.AppleMikeyDriver          2.6.1f2
    com.apple.driver.AppleIntelHD3000Graphics          8.2.4
    com.apple.driver.AppleLPC          1.7.0
    com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
    com.apple.driver.SMCMotionSensor          3.0.4d1
    com.apple.iokit.IOUserEthernet          1.0.0d1
    com.apple.Dont_Steal_Mac_OS_X          7.0.0
    com.apple.driver.AppleHWAccess          1
    com.apple.driver.AppleIntelMCEReporter          104
    com.apple.driver.AppleThunderboltIP          1.1.2
    com.apple.driver.AppleIntelSNBGraphicsFB          8.2.4
    com.apple.driver.AppleMuxControl          3.5.26
    com.apple.driver.AppleBacklight          170.3.5
    com.apple.driver.AppleMCCSControl          1.1.12
    com.apple.driver.AppleUSBTCButtons          240.2
    com.apple.driver.AppleUSBTCKeyEventDriver          240.2
    com.apple.driver.AppleUSBTCKeyboard          240.2
    com.apple.driver.AppleIRController          325.7
    com.apple.driver.AppleFileSystemDriver          3.0.1
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
    com.apple.BootCache          35
    com.apple.iokit.SCSITaskUserClient          3.6.6
    com.apple.driver.XsanFilter          404
    com.apple.iokit.IOAHCIBlockStorage          2.5.1
    com.apple.driver.AppleUSBHub          666.4.0
    com.apple.driver.AppleSDXC          1.5.2
    com.apple.driver.AirPort.Brcm4331          700.20.22
    com.apple.iokit.AppleBCM5701Ethernet          3.8.1b2
    com.apple.driver.AppleFWOHCI          5.0.2
    com.apple.driver.AppleUSBEHCI          660.4.0
    com.apple.driver.AppleUSBUHCI          656.4.1
    com.apple.driver.AppleAHCIPort          3.0.0
    com.apple.driver.AppleHPET          1.8
    com.apple.driver.AppleSmartBatteryManager          161.0.0
    com.apple.driver.AppleACPIButtons          2.0
    com.apple.driver.AppleRTC          2.0
    com.apple.driver.AppleSMBIOS          2.1
    com.apple.driver.AppleACPIEC          2.0
    com.apple.driver.AppleAPIC          1.7
    com.apple.driver.AppleIntelCPUPowerManagementClient          217.92.1
    com.apple.nke.applicationfirewall          153
    com.apple.security.quarantine          3
    com.apple.driver.AppleIntelCPUPowerManagement          217.92.1
    com.apple.AppleGraphicsDeviceControl          3.5.26
    com.apple.driver.DspFuncLib          2.6.1f2
    com.apple.vecLib.kext          1.0.0
    com.apple.iokit.IOAudioFamily          1.9.7fc2
    com.apple.kext.OSvKernDSPLib          1.14
    com.apple.kext.triggers          1.0
    com.apple.iokit.IOSerialFamily          10.0.7
    com.apple.iokit.IOFireWireIP          2.2.6
    com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.2.4f1
    com.apple.driver.AppleHDAController          2.6.1f2
    com.apple.iokit.IOHDAFamily          2.6.1f2
    com.apple.driver.AppleSMBusPCI          1.0.12d1
    com.apple.driver.IOPlatformPluginLegacy          1.0.0
    com.apple.driver.IOPlatformPluginFamily          5.7.0d11
    com.apple.iokit.IOSurface          91.1
    com.apple.iokit.IOBluetoothFamily          4.2.4f1
    com.apple.driver.AppleSMC          3.1.8
    com.apple.driver.AppleThunderboltEDMSink          2.1.3
    com.apple.driver.AppleThunderboltDPOutAdapter          3.1.7
    com.apple.driver.AppleGraphicsControl          3.5.26
    com.apple.driver.AppleBacklightExpert          1.0.4
    com.apple.iokit.IONDRVSupport          2.4.1
    com.apple.driver.AppleSMBusController          1.0.11d1
    com.apple.iokit.IOGraphicsFamily          2.4.1
    com.apple.driver.AppleThunderboltDPInAdapter          3.1.7
    com.apple.driver.AppleThunderboltDPAdapterFamily          3.1.7
    com.apple.driver.AppleThunderboltPCIDownAdapter          1.4.5
    com.apple.driver.AppleUSBMultitouch          240.9
    com.apple.driver.AppleUSBMergeNub          650.4.0
    com.apple.iokit.IOUSBHIDDriver          660.4.0
    com.apple.driver.AppleUSBComposite          656.4.1
    com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.6.6
    com.apple.iokit.IOBDStorageFamily          1.7
    com.apple.iokit.IODVDStorageFamily          1.7.1
    com.apple.iokit.IOCDStorageFamily          1.7.1
    com.apple.iokit.IOAHCISerialATAPI          2.6.1
    com.apple.iokit.IOSCSIArchitectureModelFamily          3.6.6
    com.apple.driver.AppleThunderboltNHI          2.0.1
    com.apple.iokit.IOThunderboltFamily          3.2.7
    com.apple.iokit.IOUSBUserClient          660.4.2
    com.apple.iokit.IO80211Family          630.35
    com.apple.iokit.IOEthernetAVBController          1.0.3b4
    com.apple.driver.mDNSOffloadUserClient          1.0.1b5
    com.apple.iokit.IONetworkingFamily          3.2
    com.apple.iokit.IOFireWireFamily          4.5.5
    com.apple.iokit.IOUSBFamily          677.4.0
    com.apple.iokit.IOAHCIFamily          2.6.5
    com.apple.driver.AppleEFINVRAM          2.0
    com.apple.driver.AppleEFIRuntime          2.0
    com.apple.iokit.IOHIDFamily          2.0.0
    com.apple.iokit.IOSMBusFamily          1.1
    com.apple.security.sandbox          278.11
    com.apple.kext.AppleMatch          1.0.0d1
    com.apple.security.TMSafetyNet          7
    com.apple.driver.AppleKeyStore          2
    com.apple.driver.DiskImages          371.1
    com.apple.iokit.IOStorageFamily          1.9
    com.apple.iokit.IOReportFamily          23
    com.apple.driver.AppleFDEKeyStore          28.30
    com.apple.driver.AppleACPIPlatform          2.0
    com.apple.iokit.IOPCIFamily          2.9
    com.apple.iokit.IOACPIFamily          1.4
    com.apple.kec.corecrypto          1.0
    com.apple.kec.pthread          1
    Model: MacBookPro8,1, BootROM MBP81.0047.B27, 2 processors, Intel Core i5, 2.3 GHz, 4 GB, SMC 1.68f99
    Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 384 MB
    Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020
    Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020
    AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.100.22)
    Bluetooth: Version 4.2.4f1 13674, 3 services, 23 devices, 0 incoming serial ports
    Network Service: Wi-Fi, AirPort, en1
    Serial ATA Device: Hitachi HTS545032B9A302, 320.07 GB
    Serial ATA Device: MATSHITADVD-R   UJ-8A8
    USB Device: FaceTime HD Camera (Built-in)
    USB Device: Hub
    USB Device: BRCM2070 Hub
    USB Device: Bluetooth USB Host Controller
    USB Device: Apple Internal Keyboard / Trackpad
    USB Device: Hub
    USB Device: IR Receiver
    Thunderbolt Bus: MacBook Pro, Apple Inc., 22.1

    Removed trend micro smart crap files from disco and it worked.

  • I cannot install ODX Yosemite over OSX Mavericks as my Mac Book Pro (early 2011) advises that the disc "Mackintosh HD" is used for Time Machine back ups. This is not the case however as I use a separate external HD for this purpose, help please ?!  T

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    Check this link out...
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    I was apart of this thread and it helped the OP...
    Re: System installer thinks my main drive is my time Machine backup and won't install.
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  • Mac book pro early 2011 takes a lot of time to start up and shut down.

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    Shaikh
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    HI ,
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    Youu can upgrade RAM to 16GB.
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    Update flash:
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  • Can I add a faster processor to my mac book pro early 2011

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    Removed trend micro smart crap files from disco and it worked.

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    Works for me.
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    You are entitled to 90 day telephone support from Apple. Try contacting them.
    Apple Support Contact
    Apple Support contact - Telephone

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