problem with airplay on my iMac

Similar Questions

• I bought a physical copy of Lightroom 5, but I'm having a problem with my disc drive (iMac - vintage 2009 - running os10.7.5).  I tried to download a trial of LR5 creative cloud and using the serial number of the box, but the license key is not vali

  I bought a physical copy of Lightroom 5, but I'm having a problem with my disc drive (iMac - vintage 2009 - running os10.7.5).  I tried to download a trial of LR5 creative cloud and using the serial number of the box, but the license key is not valid.  Is there a way I can download a copy so that my license key will work?

  A download of Cloud will not work for a licensed version.

  Lightroom - all versions

  Windows

  http://www.Adobe.com/support/downloads/product.jsp?product=113&platform=Windows

  Mac

  http://www.Adobe.com/support/downloads/product.jsp?product=113&platform=Macintosh

• Problems with El Capitan on iMac 27 "end 2013

  Hello. I had some problems with my end 2013 27 "iMac. The majority of my problems seems to be turning around not being able to wake from its slumber unless I hard boot the system. I am running the operating system more recent 10.11.3

  Sleep problems have started with my installation of El Capitan. I have reset the PRAM the SMC and have disabled the hibernation and Energy Saver preferences are set to never spin down hard drives or screen saver. Problem persists.

  I also experience unexpected freezes. When these occur usually, audio on my system continues (if listening to iTunes or in a video game, the audio keeps going) but there is no response from the mouse or the movement on the screen at all. key board does not respond and mouse is frozen. The last time I had it's happen I had a panic the kernel to reboot (see below for the report)

  I tried everything I can think of. I've scoured the forums on the internet for help and support. Im not sure if this is hardware or software related. I tried to unplug all of my devices - I have several hard drives USB and Thunderbolt. I have a second monitor connected via the bolt of lightning as well. This could be a video card problem?

  I have used the EtreCheck software and have gotten several things that make me wonder if it's the software however, it seems that somewhere I still have pieces of teamviewer lingering around, even if I had uninstalled the software and I can't find anything in the spotlight for her. Here is an excerpt of my report...

  Launch of Agents:

  [loading] com.adobe.AAM.Updater - 1.0.plist [Support]

  com.adobe.ARMDCHelper.cc24aef4a1b90ed56a... plist [failure] [Support]

  com.adobe.AdobeCreativeCloud.plist [failure] [Support]

  com.coupons.coupond.plist [loading] [Support]

  [ongoing] com.extensis.FMCore.plist [Support]

  [loading] com.oracle.java.Java - Updater.plist [Support]

  com.TeamViewer.TeamViewer.plist [failure] [support] [details]

  com.TeamViewer.teamviewer_desktop.plist [failure] [Support]

  Top of the process of memory:

  2.28 GB com.apple.WebKit.WebContent (15)

  2.21 GB mds_stores

  1.54 GB kernel_task

  467 MB softwareupdated

  393 MB Spotify Helper (2)

  Some things I noticed - I had questions on shut down the system. My computer completely sometimes turns. I have to force quit the finder or the dock still will remain open and prevent the closing down. If this happens, then I need hard closed by pushing the power button until the device turns off. My system is INCREDIBLY slow sometimes since the upgrade as well at el capitan.

  I had a few problems with the big Adobe applications as well - sometimes illustrator or photoshop does any open or apps say they are open in the dock and in the force to quit smoking, but do not show in the activity monitor. In this case I have to restart my system for most work. force quit does not help them.

  Sorry for the long post, but I have worked on Macs since OS7 and even worked in an apple store genius bar for awhile so I generally know what I can do to fix these but I can't get it probably remain fixed. I thought better to have as much information as possible. My next step is to reload the entire OS, but I have a lot of work here that I'm afraid to lose (even though I have several back ups via time machine and other copies on external drives)

  Any help and advice would be most appreciated!

  Thank you!

  Anonymous UUID: F83C5E07-71C2-E17D-65DC-8C631B76C5D0

  Mon Jan 25 12:21:24 2016

  Panic report *.

  panic (cpu 0 0xffffff800b5254ce appellant): "an element of the liberated area has been modified in the kalloc.128 area: expected 0xffffff803c0bd080 but found at the offset 0 128 in the 0xffffff803c0bdf00 element, 0xffffff803c4bd080, bits 0x400000 changed cookies 0x3f001131d5890016 0x53521f0c6426431"@/Library/Caches/com.apple.xbs/Sources/xnu/xnu-3248.30.4/osfm k/kern/zalloc.c:503.

  Backtrace (CPU 0), frame: return address

  0xffffff82c89ab180: 0xffffff800b4df792

  0xffffff82c89ab200: 0xffffff800b5254ce

  0xffffff82c89ab270: 0xffffff800b524f76

  0xffffff82c89ab2b0: 0xffffff800b523c02

  0xffffff82c89ab3e0: 0xffffff800ba804db

  0xffffff82c89ab400: 0xffffff7f8d12b505

  0xffffff82c89ab440: 0xffffff7f8d12b6c7

  0xffffff82c89ab460: 0xffffff7f8d2328df

  0xffffff82c89ab490: 0xffffff7f8d25e96c

  0xffffff82c89ab4d0: 0xffffff7f8d25e4c6

  0xffffff82c89ab500: 0xffffff7f8d25e0f0

  0xffffff82c89ab540: 0xffffff7f8d3e71fc

  0xffffff82c89ab590: 0xffffff7f8d3dbf7a

  0xffffff82c89ab720: 0xffffff7f8d20d227

  0xffffff82c89ab7d0: 0xffffff7f8d14c1ac

  0xffffff82c89ab890: 0xffffff7f8d159c6d

  0xffffff82c89ab900: 0xffffff7f8d09025d

  0xffffff82c89ab970: 0xffffff7f8d0964e6

  0xffffff82c89ab9b0: 0xffffff7f8d13ea07

  0xffffff82c89abab0: 0xffffff7f8d098872

  0xffffff82c89abb50: 0xffffff7f8c8619c4

  0xffffff82c89abb80: 0xffffff800bab7ef8

  0xffffff82c89abbf0: 0xffffff7f8c861a2b

  0xffffff82c89abc40: 0xffffff7f8d098727

  0xffffff82c89abc90: 0xffffff800b7607d4

  0xffffff82c89abce0: 0xffffff800b758523

  0xffffff82c89abdb0: 0xffffff800b75873f

  0xffffff82c89abde0: 0xffffff800b9cf9d6

  0xffffff82c89abe20: 0xffffff800b988cab

  0xffffff82c89abe50: 0xffffff800b9ca37d

  0xffffff82c89abf60: 0xffffff800ba2a731

  0xffffff82c89abfb0: 0xffffff800b5f0a36

  Extensions of core in backtrace:

  (3.2) com.apple.iokit.IONetworkingFamily [35F05D83-F2EC-3047-8422-E65BAF0144B2] @0 xffffff7f8c859000-> 0xffffff7f8c885fff

  com.apple.iokit.IO80211Family (1110.26) [A7F70957-7DBC-39ED-ACA7-3A7BA653D115] @0 x ffffff7f8d041000-> 0xffffff7f8d114fff

  dependency: com.apple.driver.corecapture (1.0.4) [B80FBC9C-24F9-3399-B347-01816E4EDD46] @ fff7f8d017000 0xfff

  dependency: com.apple.kec.corecrypto (1.0) [D6E082B5-93B2-3FF0-AB4B-4AA310173CE8] @0xffffff7f8 c1e9000

  dependency: (3.2) com.apple.iokit.IONetworkingFamily [35F05D83-F2EC-3047-8422-E65BAF0144B2] @0 xffffff7f8c859000

  com.apple.driver.AirPort.Brcm4360 (1020.17.1a1) [1D44A63A - 83 A 8-335C-BBF5-62965766 1B93]@0xffffff7f8d11e000-> 0xffffff7f8d7dcfff

  dependency: com.apple.driver.corecapture (1.0.4) [B80FBC9C-24F9-3399-B347-01816E4EDD46] @ fff7f8d017000 0xfff

  dependency: com.apple.driver.mDNSOffloadUserClient (1.0.1b8) [DC173C97-9F4D - 39 d 5-8814-68B0BAD 27370]@0xffffff7f8cd42000]

  dependency: (1110.26) com.apple.iokit.IO80211Family [A7F70957-7DBC-39ED-ACA7-3A7BA653D115] @0 x ffffff7f8d041000

  dependency: com.apple.iokit.IOPCIFamily (2.9) [F398CE94-0FBD-3E8E-A7AB-55F7F05A81ED] @ 7f8bd1a000 0xffffff

  dependency: (3.2) com.apple.iokit.IONetworkingFamily [35F05D83-F2EC-3047-8422-E65BAF0144B2] @0 xffffff7f8c859000

  The process corresponding to the current thread BSD name: airportd

  Mac OS version:

  15 D 21

  Kernel version:

  15.3.0 Darwin kernel version: Thu Dec 10 18:40:58 PST 2015; root:XNU-3248.30.4~1/RELEASE_X86_64

  Kernel UUID: DECC9F02-27D7-31F0-9599-A9EF2873902C

  Slide kernel: 0x000000000b200000

  Text of core base: 0xffffff800b400000

  Text __HIB base: 0xffffff800b300000

  Name of system model: iMac14, 2 (Mac-27ADBB7B4CEE8E61)

  Availability of the system in nanoseconds: 67730969846

  last load kext to 62344320534: com.apple.iokit.IOBluetoothSerialManager 4.4.3f4 (addr 0xffffff7f8cf42000 size 57344)

  kexts responsible:

  com.seagate.driver.PowSecLeafDriver_10_5 5.2.7

  com.seagate.driver.PowSecDriverCore 5.2.7

  com.apple.iokit.IOBluetoothSerialManager 4.4.3f4

  com.apple.driver.AppleMikeyHIDDriver 124

  com.apple.driver.AppleOSXWatchdog 1

  com.apple.driver.AppleGraphicsDevicePolicy 3.7.7

  com.apple.driver.AppleHDAHardwareConfigDriver 272.51.3

  com.apple.driver.AppleHDA 272.51.3

  com.apple.driver.AppleUpstreamUserClient 3.6.1

  com Apple.Driver.pmtelemetry 1

  com.apple.iokit.IOUserEthernet 1.0.1

  com.apple.driver.AppleIntelHD5000Graphics 10.1.2

  com.apple.driver.AppleMuxControl 3.12.6

  com.apple.GeForce 10.0.8

  com.apple.Dont_Steal_Mac_OS_X 7.0.0

  com.apple.driver.AppleMikeyDriver 272.51.3

  com.apple.driver.AppleBacklight 170.8.8

  com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.4.3f4

  com.apple.driver.AppleHV 1

  com.apple.driver.AppleSMCLMU 208

  com.apple.driver.AppleLPC 3.1

  com.apple.driver.AppleFIVRDriver 4.1.0

  com.apple.driver.AppleIntelFramebufferAzul 10.1.2

  com.apple.driver.AppleMCCSControl 1.2.13

  com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

  com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

  com.apple.driver.AppleThunderboltIP 3.0.8

  com.apple.nvidia.NVDAStartup 10.0.8

  com.apple.iokit.IOBluetoothUSBDFU 4.4.3f4

  com.apple.driver.AppleUSBStorageCoexistentDriver 3.7.1

  com.apple.iokit.SCSITaskUserClient 3.7.7

  com.apple.driver.AppleFireWireStorage 3.7.1

  com.apple.driver.initioFWBridge 3.7.1

  com.apple.driver.IOFireWireSerialBusProtocolSansPhysicalUnit 3.7.1

  com.apple.driver.LSI_FW_500 3.7.1

  com.apple.driver.Oxford_Semi 3.7.1

  com.apple.driver.StorageLynx 3.7.1

  com.apple.driver.AppleFileSystemDriver 3.0.1

  com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

  com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

  com.apple.BootCache 38

  2.8.5 com.apple.iokit.IOAHCIBlockStorage

  com.apple.driver.AppleFWOHCI 5.5.2

  com.apple.driver.AppleSDXC 1.7.0

  com.apple.iokit.AppleBCM5701Ethernet 10.1.12

  com.apple.driver.AirPort.Brcm4360 1020.17.1a1

  com.apple.driver.AppleAHCIPort 3.1.8

  com.apple.driver.AppleRTC 2.0

  com.apple.driver.AppleACPIButtons 4.0

  com.apple.driver.AppleHPET 1.8

  com.apple.driver.AppleSMBIOS 2.1

  com.apple.driver.AppleACPIEC 4.0

  com.apple.driver.AppleAPIC 1.7

  com Apple.NKE.applicationfirewall 163

  com Apple.Security.Quarantine 3

  com.apple.security.TMSafetyNet 8

  com.apple.iokit.IOSerialFamily 11

  com.apple.driver.DspFuncLib 272.51.3

  com.apple.kext.OSvKernDSPLib 525

  com.apple.driver.AppleGraphicsControl 3.12.6

  com.apple.nvidia.driver.NVDAGK100Hal 10.0.8

  com.apple.nvidia.driver.NVDAResman 10.0.8

  com.apple.iokit.IOSurface 108.0.1

  com.apple.driver.CoreCaptureResponder 1

  com.apple.iokit.IOFireWireIP 2.2.6

  com.apple.driver.AppleBacklightExpert 1.1.0

  com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.4.3f4

  com.apple.iokit.IOBluetoothFamily 4.4.3f4

  com.apple.driver.AppleHDAController 272.51.3

  com.apple.iokit.IOHDAFamily 272.51.3

  com.apple.iokit.IOAudioFamily 204.3

  com.apple.vecLib.kext 1.2.0

  com.apple.driver.AppleSMBusPCI 1.0.14d1

  com.apple.iokit.IONDRVSupport 2.4.1

  com.apple.AppleGraphicsDeviceControl 3.12.6

  com.apple.iokit.IOAcceleratorFamily2 205,1

  com.apple.driver.AppleSMBusController 1.0.14d1

  com.apple.iokit.IOGraphicsFamily 2.4.1

  com.apple.driver.IOPlatformPluginLegacy 1.0.0

  com.apple.driver.X86PlatformPlugin 1.0.0

  com.apple.driver.AppleSMC 3.1.9

  com.apple.driver.IOPlatformPluginFamily 6.0.0d7

  com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

  com.apple.driver.AppleThunderboltEDMSink 4.1.1

  com.apple.iokit.IOAHCISerialATAPI 2.6.2

  com.apple.driver.AppleHIDKeyboard 181

  com.apple.driver.usb.IOUSBHostHIDDevice 1.0.1

  com.apple.driver.AppleThunderboltDPInAdapter 4.1.3

  com.apple.driver.AppleThunderboltDPOutAdapter 4.1.3

  com.apple.driver.AppleThunderboltDPAdapterFamily 4.1.3

  com.apple.driver.AppleThunderboltPCIUpAdapter 2.0.2

  com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2

  com.apple.iokit.IOUSBMassStorageClass 4.0.2

  com.apple.iokit.IOUSBMassStorageDriver 1.0.0

  com.apple.driver.usb.AppleUSBHostCompositeDevice 1.0.1

  com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.7

  com.apple.iokit.IOBDStorageFamily 1.8

  com.apple.iokit.IODVDStorageFamily 1.8

  com.apple.iokit.IOCDStorageFamily 1.8

  com.apple.iokit.IOFireWireSerialBusProtocolTransport 2.5.1

  com.apple.driver.usb.AppleUSBHub 1.0.1

  com.apple.driver.AppleUSBMergeNub 900.4.1

  com.apple.driver.AppleXsanScheme 3

  com.apple.iokit.IOFireWireSBP2 4.2.7

  com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.7

  com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.7

  4.5.8 com.apple.iokit.IOFireWireFamily

  com.apple.driver.AppleThunderboltNHI 4.0.4

  com.apple.iokit.IOThunderboltFamily 5.1.0

  com.apple.iokit.IOEthernetAVBController 1.0.3b3

  com.apple.iokit.IO80211Family 1110.26

  com.apple.driver.mDNSOffloadUserClient 1.0.1b8

  com.apple.iokit.IONetworkingFamily 3.2

  com Apple.Driver.corecapture 1.0.4

  com.apple.iokit.IOAHCIFamily 2.8.1

  com.apple.driver.usb.AppleUSBXHCIPCI 1.0.1

  com.apple.driver.usb.AppleUSBXHCI 1.0.1

  com.apple.iokit.IOUSBFamily 900.4.1

  com.apple.iokit.IOUSBHostFamily 1.0.1

  com.apple.driver.AppleUSBHostMergeProperties 1.0.1

  com.apple.driver.AppleEFINVRAM 2.0

  com.apple.iokit.IOHIDFamily 2.0.0

  com.apple.driver.AppleEFIRuntime 2.0

  com.apple.iokit.IOSMBusFamily 1.1

  com Apple.Security.sandbox 300.0

  com.apple.kext.AppleMatch 1.0.0d1

  com.apple.driver.AppleKeyStore 2

  com.apple.driver.AppleMobileFileIntegrity 1.0.5

  com.apple.driver.AppleCredentialManager 1.0

  com.apple.driver.DiskImages 417.2

  com.apple.iokit.IOStorageFamily 2.1

  com.apple.iokit.IOReportFamily 31

  com.apple.driver.AppleFDEKeyStore 28.30

  com.apple.driver.AppleACPIPlatform 4.0

  com.apple.iokit.IOPCIFamily 2.9

  com.apple.iokit.IOACPIFamily 1.4

  com.apple.kec.Libm 1

  com Apple.KEC.pthread 1

  com Apple.KEC.corecrypto 1.0

  Unable to gather system configuration information. Model: iMac14 2, 4 processors, Intel Core i7, 3.5 GHz, 24GO, BootROM IM142.0118.B12, MSC 2.15f7

  Graphics card: NVIDIA GeForce GTX 780 M, NVIDIA GeForce GTX 780 M, PCIe, 4096 MB

  Memory module: DIMM0/0 BANK, 4 GB DDR3, 1600 MHz, 0x80AD, 0x484D54343531533641465238412D50422020

  Memory module: DIMM0/1 BANK, 4 GB DDR3, 1600 MHz, 0x80AD, 0x484D54343531533641465238412D50422020

  Memory module: BANK 0/DIMM1, 8 GB, DDR3, 1600 MHz, 0x859B, 0x435438473353313630424D2E4D3136464544

  Memory module: BANK 1/DIMM1, 8 GB, DDR3, 1600 MHz, 0x859B, 0x435438473353313630424D2E4D3136464544

  Airport: spairport_wireless_card_type_airport_extreme (0x14E4, 0 x 111), Broadcom BCM43xx 1.0 (7.21.94.136.1a1)

  Bluetooth: Version 4.4.3f4 16616, 3 services, 27 aircraft, 1 incoming serial ports

  Network service: Wi - Fi, AirPort, en1

  Serial ATA Device: APPLE HDD, 1 TB ST1000DM003

  USB device: USB 3.0 Bus

  USB device: Elements 107C

  USB device: Backup + Office

  USB device: Hub BRCM20702

  USB Device: USB Bluetooth host controller

  USB device: FaceTime HD camera (built-in)

  USB device: Keyboard Hub

  USB Device: Apple keyboard

  USB device: USB 2.0 Hub [MTT]

  USB drive: Microsoft Wireless Optical mouse¬ae 1.00

  USB device: External USB 3.0

  USB device: External USB 3.0

  USB device: My passport 0820

  USB device: My passport 0748

  USB device: FA GoFlex Desk

  Bus crush: iMac, Apple Inc., 23.10

  Please post the rest of the etrecheck report.

• Sudden problems with Airplay, Apple TV etc with WAG320N

  Hi all

  Until recently I use DSL through my WAG320N and it worked perfectly. I used my AppleTV with airplay, Vuze, Xbox and so on without problem. I just moved to a new address with internet fiber. I've reconfigured the router for all route (and not an ADSL modem) by assigning the first to act as a WAN port ethernet port. Internet works fine as speed goes, but the wireless LAN is not optimal. I can't get my AppleTV to find iTunes on my laptop and Airplay is very slow and laggy. The router settings remained unchanged at first, but now I tried to reset to the factory settings and start over, this does not solve the problem however. I'm a bit puzled on this, as I know, the change of service provider (and go from ADSL to the fiber) should not have effects on the local network? I noticed that Vuze complains about problems NAT (just need to confirm that there is a NAT problem), but this should not matter in which of the local network, right?

  Any ideas what the problem might be?

  These devices are mentioned connected wireless? This could be a problem with wireless. It may be because of the interference. It is possible that in the new location, you have two or three neighbors who affects the Wi - Fi wireless signal. It is also possible that some other wireless devices are causing interference like cordless phones that moving on the same frequency with the router, the garage door openers and microwave machines. What you can do to prevent the interference must reconfigure wireless settings. Set width/bandwidth of 20 MHz channel and set the standard channel 1, 6 or 11. That should help him.

• I do not see a DVD with Airplay of mi iMac

  I can't see a video in my HD TV using my iMac with my AppeTv DVD player. Although I can see the images reproduced in my iMac, video in the DVD is not replicated

  AirPlay of Apple DVD player is locked, you can try the third party software as I like VLC.

• Problem with upgrade RAM on iMac 21 ", mid-2011

  Hello

  my iMac has 4 RAM slots. Already built in which 2x2gb. I have it decorated 2 x 4 GB.

  After a while, I met a problem, a strange tone while booting, RAM failure signalling. I removed a RAM 2 GB module, my iMac worked well for overall with 10 GB of RAM, but more slowly. I bought another 2x4gb and wanted to improve the memory. Once the odd tone.

  What really surprised me, that even I have exchanged only the remaining 2 GB module with a module of 4GB, even leading to the Strange tone (of course also two openings with 4 GB respectively). 2 former GB slots do not work with 4 GB of RAM modules, even if the capacity of the iMac is 16 GB.

  I tried the Apple, no where to found error hardware test. I was carefully choosing compatible right modules RAM (Corsair DDR3, 1 333 Mhz).

  What's wrong with my iMac?

  Kind regards

  Bobby

  What brand is the third party of ram?

• Problems with Adobe Reader for iMac (computer end 2013):

  I downloaded, deleted and reinstalled Adobe Reader for my new iMac several times.  PDF documents are displayed with a black background, making the document impossible or difficult to read.  How can I fix this problem or is there a problem of incompatibility with Adobe Reader and the new iMacs?

  Try open Reader and go to preferences > accessibility > Document color option and see if "the colors in the document replace is selected.

• Problem with Photoshop CC on imac when I use the large brush

  Hi, I have recentrly bought an imac and I installed Photoshop top. I tried the performance and something strange happened; When I use a brush/Eraser large (or other tools that require a size) the entire screen become black for a moment every time I move the mouse or I press the space bar and once it crashed and I had to restart the imac. My imac has a 4 k resolution, processor i7 and iris intel graphics pro 6200. Is there a way to solve this problem? Thank you in advance. ISS

  Hi AntonioKani,

  Could you please for the preferences in Photoshop, click the performance tab.

  In there, please uncheck the option "use graphics processor.
  Restart Photoshop and then try and use the brush and let me know if it happens again or not.

  Kind regards

  Tanuj

• Help please problem with export

  I had some problems with safari on my imac (OS X), so I did "repairs" I finally remove some keychains and I think that's what's causing the problem I have. However I don't know how to fix it.

  When I try to export my rugged external hard drive from Lacie desktop RAW images to jpg I get this error...

  "An internal error has occurred:?: 0: attempt to index field 'rootFile' (a nil value)".

  I have a deadline soon (in an hour) and need help please.

  Hi Neo,

  I try to export the Cie and go to the Office first... we will know how you go, I'll be around an hour or two!

• iMac 27 "mid-2011 - Intermittent problem with CPU fan running at full speed and sleep mode.

  Hello!

  My iMac 27 "has an intermittent problem with the CPU fan runs at full speed. Sometimes it happens at the time when I start it, sometimes only in my session, and sometimes only after a certain time. So does seem to be a problem of "heating".

  Second issue is with the mode 'sleep'. It may occur also at any time, at the start of the iMac, session, or after a certain time. But once he starts to go in mode 'sleep', when I wake up, it goes right back in mode after a few seconds and that it will continue indefinitely until I restart the computer.

  What could be?

  Please help me!

  4ntoine

  Here is my model of iMac:

  iMac 27 "mid-2011 model 12.2

  Intel Core i7 3.4 GHz

  AMD Radeon HD 6970M 1024 MB

  OS X El Capitan 10.11.6
  SMC 1.72f2

  Boot ROM IM121.0047.B23

  reset the SMC

  Reset the management system (SCM) controller on your Mac - Apple Support

• What is the problem with my iMac mid-2011

  Hello

  Need help find out what is the problem with my iMac to mid-2011.

  Yesterday during a reboot it just never came to life.

  On turning the power on, I get the RINGTONE to start and that's it. The screen is totally black. Nothing behind tried with a torch.

  VRAM rearmament so far I tried repeatedly, unplug and plug, all kinds of combinations of keys in the carillon and nothing.

  Connected to an external monitor and shows nothing of too - no signal.

  Any way that I can know what is wrong with it before sending it to the service tech? I suspect bad graphics card but how do you ensure?

  From what you describe, it looks like a hardware issue that Apple will only be able to resolve, but not to despair immediately.

  Read it please get help with graphics issues on external displays connected to your Mac - Apple Support.

  I know that the title and subject are not suitable to your concern, but buried in this document is the following passage that contains three links describing the steps to follow.

  If you can not change the resolution of your screen because you see no image, restart your Mac in safe mode to reset the default display resolution.

  If booting safe mode doesn't resolve the problem, reset your Mac NVRAM and SMC to reset the video ports on your Mac to their default values.

  That first, then write again for additional suggestions if you are still having problems.

• you have tried to contact me to solve my problem with my iMac, but it seems contact you number is wrong

  HI I mayada I have the case Id * and the serial number of my iMac is C0 * NCR you have tried to contact me to solve my problem with my iMac, but it seems the number you contact will not my right number is + *.

  Mayada

  < personal information under the direction of the host >

  If you are referring to Apple is not Apple. Here are the forums of users only. Call Apple directly to deal with your problem.

• Don t work under El Capitan and I don't get an update/upgrade? I've used until yesterday an old MacBook pro and Lion, everything was perfect with an opening. Now, with the new element (iMac) and El Capitan, I have problems.

  Don t work under El Capitan and I don't get an update/upgrade? I've used until yesterday an old MacBook pro and Lion, everything was perfect with an opening. Now, with the new element (iMac) and El Capitan, I have problems.

  It is not possible to update the version of Aperture is 3.4.5

  What can I do?

  You can only update if you have a version of the AppStore of Aperture - if your version of Aperture appears in the history of your purchases on the App Store. Update and then reinstalling.   See this tip of the user for more details:

  Update to Aperture 3.6 after the publication of Photos

• Problems with the Display Mode target on end 2009 27 "iMac

  Used late 2009 iMac 27 "in the view target in conjunction with a Dell XPS tower with i7 processor, Windows 7 and the best graphics card I could afford at the time connected by HDMI to mini display port cable.  Worked well for years.  Set aside Dell for a few months and the update of the iMac to El Capitan OS 10.11.3.  Recently tried old setup with same Dell PC and was able to move from Mac to PC, but the PC screen resolution was at the lowest setting. I got an error message when enabling/disabling to PC who said there was a problem with the port causing mini display of the system back to the lowest resolution. Impossible to reset at a higher resolution.

  I tested the Dell PC on another monitor, and it works very well at higher resolution (2560 X 1440). Now, when I reconnected it to the iMac (which works fine), the screen becomes black.

  Is it possible that the operating system upgraded (El Capitan) is not compatible with the targets using mini display port Display Mode?  Any ideas?

  Use your iMac as a display with the target - Apple Support Display Mode , also consider having a bad cable or connection. Does not hurt to try different cables, they can and will the bad!

• problem with the 3/square icon on my iMac keyboard key.

  I have a problem with the 3/square icon on my iMac keyboard key. The icon of Fund will not work, I just get # when I use the up and down arrow to the left of the keyboard. A lot of ideas, everyone please?

  I just see the same question and the answer is the book symbol is alt + 3, I have a US keyboard. I wonder why that is? I bought my iMac to John lewis to the United Kingdom. Anyone have the answer for me please?