My Mac Pro screen going black while turning on.

My mac book pro 13" screen going black while turning on.

Hello, Gaganpreetfromnz. 
Thank you for visiting Apple Support Communities.
Here are a couple troubleshooting articles that I would recommend going through when experiencing this issue.
Troubleshooting: My computer won't turn on
http://support.apple.com/kb/ts1367
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/TS2570
Cheers,
Jason H.

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    Hello mac community, I am new,
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    Sat Sep 28 10:49:06 2013
    panic(cpu 20 caller 0xffffff7f80f4775c): "ATICLASS::detectPowerDown: GPU is not found. PCI config access fails!!!\n"@/SourceCache/GraphicsDrivers/GraphicsDrivers-6.36.10/Common/IONDRV/ ATI/IOFramebuffer/ATIFramebuffer/Controller/Sources/R800/EvergreenClocks.cpp:825
    Backtrace (CPU 20), Frame : Return Address
    0xffffff83d2693a90 : 0xffffff8000204d15
    0xffffff83d2693b90 : 0xffffff7f80f4775c
    0xffffff83d2693bb0 : 0xffffff7f80f493dc
    0xffffff83d2693bd0 : 0xffffff7f8158cbe5
    0xffffff83d2693c00 : 0xffffff7f8158677c
    0xffffff83d2693c40 : 0xffffff7f80d9ac80
    0xffffff83d2693cc0 : 0xffffff7f80d99750
    0xffffff83d2693d00 : 0xffffff80005281dd
    0xffffff83d2693d70 : 0xffffff8000553deb
    0xffffff83d2693de0 : 0xffffff80002ba770
    0xffffff83d2693e50 : 0xffffff8000205536
    0xffffff83d2693e80 : 0xffffff80002029eb
    0xffffff83d2693ef0 : 0xffffff8000274176
    0xffffff83d2693f60 : 0xffffff80002c3095
    0xffffff83d2693fa0 : 0xffffff80002e4894
    Kernel Extensions in backtrace (with dependencies):
    com.apple.kext.ATIFramebuffer(6.3.6)@0xffffff7f81585000->0xffffff7f81598fff
                dependency: com.apple.iokit.IOACPIFamily(1.3.0)@0xffffff7f80800000
                dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0xffffff7f80804000
                dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0xffffff7f80d88000
                dependency: com.apple.kext.ATISupport(6.3.6)@0xffffff7f80e02000
    com.apple.kext.ATI5000Controller(6.3.6)@0xffffff7f80f30000->0xffffff7f80f5afff
                dependency: com.apple.iokit.IOACPIFamily(1.3.0)@0xffffff7f80800000
                dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0xffffff7f80804000
                dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0xffffff7f80d88000
                dependency: com.apple.kext.ATISupport(6.3.6)@0xffffff7f80e02000
    com.apple.iokit.IOGraphicsFamily(2.2.1)@0xffffff7f80d88000->0xffffff7f80daffff
                dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0xffffff7f80804000
    BSD process name corresponding to current thread: WindowServer
    Mac OS version:
    10K549
    Kernel version:
    Darwin Kernel Version 10.8.0: Tue Jun  7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64
    System model name: MacPro5,1 (Mac-F221BEC8)
    System uptime in nanoseconds: 12612076511
    unloaded kexts:
    (none)
    loaded kexts:
    com.audinate.dante.driver.DanteVirtualSoundcard     0.9.3
    com.paceap.kext.pacesupport.snowleopard       5.8
    com.Areca.ArcMSR  1.3.3
    com.apple.filesystems.autofs    2.1.0
    com.apple.driver.AppleTyMCEDriver 1.0.2d2
    com.apple.driver.AGPM    100.12.31
    com.apple.driver.AppleHWSensor     1.9.3d0
    com.apple.driver.AudioAUUC    1.57
    com.apple.driver.AppleUpstreamUserClient       3.5.7
    com.apple.driver.AppleMCCSControl 1.0.20
    com.apple.driver.AppleMikeyHIDDriver      1.2.0
    com.apple.kext.ATIFramebuffer        6.3.6
    com.apple.driver.AppleIntelPenrynProfile   17
    com.apple.Dont_Steal_Mac_OS_X    7.0.0
    com.apple.driver.AppleMikeyDriver    2.0.5f14
    com.apple.ATIRadeonX3000     6.3.6
    com.apple.driver.AppleIntelNehalemProfile        11
    com.apple.driver.AppleHDA      2.0.5f14
    com.apple.driver.AudioIPCDriver       1.1.6
    com.apple.driver.AirPortBrcm43xx     423.91.27
    com.apple.driver.Intel82574L    2.1.8b1
    com.apple.driver.AppleIntelMeromProfile   19
    com.apple.driver.AirPortBrcm43224  428.42.4
    com.apple.driver.ACPI_SMC_PlatformPlugin     4.7.0a1
    com.apple.driver.AppleLPC       1.5.1
    com.apple.driver.AppleIntel8254XEthernet 2.1.3b1
    com.apple.filesystems.ntfs        3.4
    com.apple.iokit.SCSITaskUserClient  2.6.8
    com.apple.iokit.IOAHCIBlockStorage 1.6.4
    com.apple.driver.AppleUSBHub 4.2.4
    com.apple.driver.AppleFWOHCI        4.7.3
    com.apple.driver.AppleUSBEHCI       4.2.4
    com.apple.BootCache       31.1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
    com.apple.driver.AppleAHCIPort       2.1.7
    com.apple.driver.AppleUSBUHCI       4.2.0
    com.apple.driver.AppleEFINVRAM    1.4.0
    com.apple.driver.AppleRTC       1.3.1
    com.apple.driver.AppleHPET     1.5
    com.apple.driver.AppleACPIButtons  1.3.6
    com.apple.driver.AppleSMBIOS        1.7
    com.apple.driver.AppleACPIEC 1.3.6
    com.apple.driver.AppleAPIC      1.4
    com.apple.driver.AppleIntelCPUPowerManagementClient  142.6.0
    com.apple.security.sandbox      1
    com.apple.security.quarantine   0
    com.apple.nke.applicationfirewall       2.1.14
    com.apple.driver.AppleIntelCPUPowerManagement   142.6.0
    com.apple.iokit.IOSCSIBlockCommandsDevice 2.6.8 - last loaded 12365095188
    com.apple.driver.AppleProfileReadCounterAction       17
    com.apple.driver.AppleProfileTimestampAction  10
    com.apple.driver.AppleProfileThreadInfoAction  14
    com.apple.driver.AppleProfileRegisterStateAction      10
    com.apple.driver.AppleProfileKEventAction        10
    com.apple.driver.AppleProfileCallstackAction     20
    com.apple.iokit.IOSurface 74.2
    com.apple.iokit.IOBluetoothSerialManager 2.4.5f3
    com.apple.iokit.IOSerialFamily  10.0.3
    com.apple.driver.AppleHDAHardwareConfigDriver     2.0.5f14
    com.apple.driver.DspFuncLib    2.0.5f14
    com.apple.iokit.IONDRVSupport        2.2.1
    com.apple.iokit.IOAudioFamily  1.8.3fc2
    com.apple.kext.OSvKernDSPLib       1.3
    com.apple.driver.AppleSMBusController    1.0.10d0
    com.apple.iokit.IOFireWireIP     2.0.3
    com.apple.kext.ATI5000Controller     6.3.6
    com.apple.kext.ATISupport       6.3.6
    com.apple.iokit.AppleProfileFamily     41
    com.apple.driver.AppleHDAController        2.0.5f14
    com.apple.iokit.IOGraphicsFamily     2.2.1
    com.apple.iokit.IOHDAFamily    2.0.5f14
    com.apple.iokit.IO80211Family  320.1
    com.apple.driver.AppleSMC      3.1.0d5
    com.apple.driver.IOPlatformPluginFamily   4.7.0a1
    com.apple.driver.AppleSMBusPCI     1.0.10d0
    com.apple.iokit.IONetworkingFamily  1.10
    com.apple.driver.BroadcomUSBBluetoothHCIController     2.4.5f3
    com.apple.driver.AppleUSBBluetoothHCIController    2.4.5f3
    com.apple.iokit.IOBluetoothFamily     2.4.5f3
    com.apple.driver.AppleUSBMergeNub       4.2.4
    com.apple.driver.AppleUSBComposite       3.9.0
    com.apple.driver.XsanFilter       402.1
    com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.6.8
    com.apple.iokit.IOBDStorageFamily   1.6
    com.apple.iokit.IODVDStorageFamily        1.6
    com.apple.iokit.IOCDStorageFamily  1.6.1
    com.apple.iokit.IOUSBUserClient      4.2.4
    com.apple.iokit.IOAHCISerialATAPI   1.2.6
    com.apple.iokit.IOFireWireFamily      4.2.6
    com.apple.driver.AppleFileSystemDriver    2.0
    com.apple.iokit.IOAHCIFamily   2.0.6
    com.apple.iokit.IOUSBFamily    4.2.4
    com.apple.iokit.IOSCSIParallelFamily        2.1.1
    com.apple.iokit.IOSCSIArchitectureModelFamily        2.6.8
    com.apple.driver.AppleEFIRuntime    1.4.0
    com.apple.iokit.IOHIDFamily     1.6.6
    com.apple.iokit.IOSMBusFamily        1.1
    com.apple.security.TMSafetyNet       6
    com.apple.kext.AppleMatch      1.0.0d1
    com.apple.driver.DiskImages    289
    com.apple.iokit.IOStorageFamily       1.6.3
    com.apple.driver.AppleACPIPlatform 1.3.6
    com.apple.iokit.IOPCIFamily     2.6.5
    com.apple.iokit.IOACPIFamily   1.3.0
    Cubase has this error
    Process:         Cubase 6 [222]
    Path:            /Applications/Cubase 6.app/Contents/MacOS/Cubase 6
    Identifier:      com.steinberg.cubase
    Version:         6.0.7.364 (6.0.7.364)
    Code Type:       X86-64 (Native)
    Parent Process:  launchd [144]
    Date/Time:       2013-09-28 10:50:35.845 +0100
    OS Version:      Mac OS X 10.6.8 (10K549)
    Report Version:  6
    Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
    Exception Codes: KERN_INVALID_ADDRESS at 0x000000012473fd9f
    Crashed Thread:  0  Dispatch queue: com.apple.main-thread
    Thread 0 Crashed:  Dispatch queue: com.apple.main-thread
    0   ???                             0x000000012473fd9f 0 + 4906548639
    1   dyld                             0x00007fff5fc0c839 ImageLoader::link(ImageLoader::LinkContext const&, bool, bool, ImageLoader::RPathChain const&) + 201
    2   dyld                             0x00007fff5fc04d48 dyld::link(ImageLoader*, bool, ImageLoader::RPathChain const&) + 118
    3   dyld                             0x00007fff5fc08f68 dlopen + 490
    4   libSystem.B.dylib                 0x00007fff87a9be40 dlopen + 61
    5   com.apple.CoreFoundation          0x00007fff8223eef7 _CFBundleDlfcnLoadBundle + 231
    6   com.apple.CoreFoundation          0x00007fff8223de97 _CFBundleLoadExecutableAndReturnError + 1191
    7   com.apple.CoreFoundation          0x00007fff822cb30e CFBundleLoadExecutableAndReturnError + 14
    8   com.steinberg.cubase                  0x00000001011e8e55 CSOLOISTExtendedAnalysis::~CSOLOISTExtendedAnalysis() + 69941
    9   com.steinberg.cubase                  0x00000001011e93f0 CSOLOISTExtendedAnalysis::~CSOLOISTExtendedAnalysis() + 71376
    10  com.steinberg.cubase                 0x0000000100402690 0x100000000 + 4204176
    11  com.steinberg.cubase                 0x00000001011d8e77 CSOLOISTExtendedAnalysis::~CSOLOISTExtendedAnalysis() + 4439
    12  com.steinberg.cubase                 0x00000001011e86b7 CSOLOISTExtendedAnalysis::~CSOLOISTExtendedAnalysis() + 67991
    13  com.steinberg.cubase                 0x00000001011e892e CSOLOISTExtendedAnalysis::~CSOLOISTExtendedAnalysis() + 68622
    14  com.steinberg.cubase                 0x00000001011e8a64 CSOLOISTExtendedAnalysis::~CSOLOISTExtendedAnalysis() + 68932
    15  com.steinberg.cubase                 0x00000001007c68ab 0x100000000 + 8153259
    16  com.steinberg.cubase                 0x0000000100d149c0 0x100000000 + 13715904
    17  com.steinberg.cubase                 0x0000000101277b99 CSOLOISTExtendedAnalysis::~CSOLOISTExtendedAnalysis() + 654969
    18  com.steinberg.cubase                 0x0000000100d16dbd 0x100000000 + 13725117
    19  com.steinberg.cubase                 0x000000010116b048 0x100000000 + 18264136
    20  com.steinberg.cubase                 0x00000001000d39c4 0x100000000 + 866756
    Thread 1:  Dispatch queue: com.apple.libdispatch-manager
    0   libSystem.B.dylib                 0x00007fff87aaec0a kevent + 10
    1   libSystem.B.dylib                 0x00007fff87ab0add _dispatch_mgr_invoke + 154
    2   libSystem.B.dylib                 0x00007fff87ab07b4 _dispatch_queue_invoke + 185
    3   libSystem.B.dylib                 0x00007fff87ab02de _dispatch_worker_thread2 + 252
    4   libSystem.B.dylib                 0x00007fff87aafc08 _pthread_wqthread + 353
    5   libSystem.B.dylib                 0x00007fff87aafaa5 start_wqthread + 13
    Thread 2:
    0   libSystem.B.dylib                 0x00007fff87aafa2a __workq_kernreturn + 10
    1   libSystem.B.dylib                 0x00007fff87aafe3c _pthread_wqthread + 917
    2   libSystem.B.dylib                 0x00007fff87aafaa5 start_wqthread + 13
    Thread 3:  FThread
    0   libSystem.B.dylib                 0x00007fff87a95dce semaphore_timedwait_trap + 10
    1   com.steinberg.cubase                  0x00000001014f8437 CSOLOISTExtendedAnalysis::~CSOLOISTExtendedAnalysis() + 3278615
    2   com.steinberg.cubase                  0x00000001007c8be0 0x100000000 + 8162272
    3   com.steinberg.cubase                  0x00000001014f8eb0 CSOLOISTExtendedAnalysis::~CSOLOISTExtendedAnalysis() + 3281296
    4   libSystem.B.dylib                 0x00007fff87b7129a _pthread_body + 24
    Thread 4:
    0   libSystem.B.dylib                 0x00007fff87aafa2a __workq_kernreturn + 10
    1   libSystem.B.dylib                 0x00007fff87aafe3c _pthread_wqthread + 917
    2   libSystem.B.dylib                 0x00007fff87aafaa5 start_wqthread + 13
    Thread 5:
    0   libSystem.B.dylib                 0x00007fff87a95dda semaphore_timedwait_signal_trap + 10
    1   libSystem.B.dylib                 0x00007fff87ad4772 _pthread_cond_wait + 1015
    2   com.apple.CoreVideo                   0x00007fff82fbade6 CVDisplayLink::waitUntil(unsigned long long) + 252
    3   com.apple.CoreVideo                   0x00007fff82fba2a2 CVDisplayLink::runIOThread() + 644
    4   com.apple.CoreVideo                   0x00007fff82fb9fe3 startIOThread(void*) + 139
    5   libSystem.B.dylib                 0x00007fff87acefd6 _pthread_start + 331
    6   libSystem.B.dylib                 0x00007fff87acee89 thread_start + 13
    Thread 6:
    0   libSystem.B.dylib                 0x00007fff87aafa2a __workq_kernreturn + 10
    1   libSystem.B.dylib                 0x00007fff87aafe3c _pthread_wqthread + 917
    2   libSystem.B.dylib                 0x00007fff87aafaa5 start_wqthread + 13
    Thread 0 crashed with X86 Thread State (64-bit):
      rax: 0x00000001211f4000  rbx: 0x00007fff5fc43ae8  rcx: 0x00007fff5fc019df  rdx: 0x00007fff5fbfdd20
      rdi: 0x00000001211f4000  rsi: 0x00000001211f4000  rbp: 0x00007fff5fbfe170  rsp: 0x00007fff5fbfdce8
       r8: 0x0000000000000000   r9: 0x00007fff8abcf420  r10: 0x0000000000000000  r11: 0x00007fff8abcf420
      r12: 0x00000001224521e0  r13: 0x00000001211f4000  r14: 0x000000012473fd9f  r15: 0x00007fff5fbfdcf0
      rip: 0x000000012473fd9f  rfl: 0x0000000000010212  cr2: 0x000000012473fd9f
    Binary Images:
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        0x7fff82688000 -     0x7fff82745fff  com.apple.CoreServices.OSServices 359.2 (359.2) <BBB8888E-18DE-5D09-3C3A-F4C029EC7886> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServi ces.framework/Versions/A/OSServices
        0x7fff82746000 -     0x7fff82747ff7  com.apple.audio.units.AudioUnit 1.6.7 (1.6.7) <49B723D1-85F8-F86C-2331-F586C56D68AF> /System/Library/Frameworks/AudioUnit.framework/Versions/A/AudioUnit
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        0x7fff82843000 -     0x7fff82959ff7  libxml2.2.dylib 10.3.0 (compatibility 10.0.0) <3814FCF9-92B9-A6AB-E76A-F7021894AA3F> /usr/lib/libxml2.2.dylib
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        0x7fff82da6000 -     0x7fff82e24ff7  com.apple.CoreText 151.13 (???) <5C6214AD-D683-80A8-86EB-328C99B75322> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreText.framework/Versions/A/CoreText
        0x7fff82e25000 -     0x7fff82f5afff  com.apple.audio.toolbox.AudioToolbox 1.6.7 (1.6.7) <F4814A13-E557-59AF-30FF-E62929367933> /System/Library/Frameworks/AudioToolbox.framework/Versions/A/AudioToolbox
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        0x7fff83914000 -     0x7fff83af6fef  libType1Scaler.dylib ??? (???) <7892C4D7-3E5E-D7DA-AA4E-8D4ACED143D9> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ATS.framework/Versions/A/Resources/libType1Scaler.dylib

    I havent had the exact same problem as you but I am having a similar problem where lately I noticed when working in Pro Tools (mainly because I use my mac pro for audio work) or even when on the internet whatever it may be that my screen has been flickering a little bit or gets slightly glitchy.
    Yesterday upon startup for the first time the screen went black. Had to do a force shutdown. Unplugged all external devices. Reset everything as well. Slowly checked everything was on the phone with Apple even during the process. Seemed to correct the issue. Then of course I get off the phone, restarted my computer and it goes black randomly again.
    Rebooted fine. Checked all my hard disks internal and external, verified and repaired permissions on main drive and clone. Since then nothing yet...But I still feel its either the Video Card or the Monitor as everything else is fully operational.
    I plan on taking it in to look at as my applecare is up in November but I cant point my finger on it. And really am trying to avoid lugging the mac pro and monitor in at the same time...(Not the easiest thing with lack of parking in nyc..)
    If the display was dying I feel like it would have konked out already.
    The funny thing is I have had to replace video cards and monitors in the past but this time I cant quite figure out what the **** is going on.
    I am leaning towards the video card as I noticed it flickered a little when opening plug in windows in pro tools or multiple windows in sfari but it doesnt make sense.
    Worst part is I cant do a hardware test cause for some reason this computer doesnt have the software installed. It does nothing when I hold down the D button...
    I  totally baffled but the randomness of this.

  • While browsing the internet with my iPhone 4S the screen goes black and it looks like it's turning off, but it pops up to the unlock keypad screen.

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    im so glad im not the only one with this problem. at least i know its not because some careless things i unconciously did that makes my mac gone berzerg like this.
    i also encounter the exact same problem with all of you. problems started a month ago. at first it was just once in a while then it became a frequent thing especially when my battery left with 20-30%. then after i plugged in the magsafe, its okay. lately, nothing safes the mac from crashing, particularly when im running adobe and/or autocad. i thought it was software problems so i backed up my files, performed erase and install snow leopard then made an even bigger mistake by upgrading to lion. after finish upgrading, the crashings got even more often. every starting up, after i got a glimpse of login in, pufffttt, screen goes black but keyboard still on. googled it up and say reseting smc will do the trick. eeekkkk nothing! then resetting the pram. worked okay for quite some times then puufffttt, crash! ask a question on yahoo answers and got a help from lovely person to install gfsxcard-something and told to opt for integrated only. worked fine for 2 days and still went back to crashing. opened up the mac, testing each rams, reshuffling em, still got nothing. the only thing that enables me to do my work with this Majestic mac is resetting pram everytime i turn it on.
    since im living in singapore (bought this mac june'09 in melbourne,australia), there is no genius bar to be found, running a diagnostic only at any apple service cost me 120 bucks and if i have to change the logicboard, its gonna cost me ard 1000++ dollas since i dont have any applecare and my warranty expired 4mnths ago. so, i might be killing myself soon! yauuzaaaa

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