Imac 21.5" mid 2011 performance when connecting a 27" 2560x1440 external display

Im about to pull the trigger and buy the 27" apple cinema display. But I have concerns about the performance I will experience when connecting it to my base model imac 21.5". Can my 21.5" imac (2.5 GHz Intel Core i5 / AMD 6750M 512 MB / 12GB of RAM) run a 2560x1440 external display smoothly? Or is that too much for my graphics card? Any help is greatly appreciated. I have searched everywhere for clarification but still nothing. Thanks!

Hello,
Looks good to go...
2nd Display Support:
Dual/Mirroring
2nd Max. Resolution:
2560x1600
Details:
Apple reports that this model simultaneously supports the native resolution of the built-in display and up-to a 30-inch external display (2560x1600).
http://www.everymac.com/systems/apple/imac/specs/imac-core-i5-2.5-21-inch-alumin um-mid-2011-thunderbolt-specs.html

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IMac (27-inch, Mid 2011) Constantly Crashing to Black Screen, Has Troubles Rebooting

I have an iMac (27-inch, Mid 2011) with a 3.4 GHz quad-core Intel Core i7, 16GB RAM, and AMD Radeon HD 6970M 1GB of memory.
Every day since Tuesday, the computer has been randomly crashing once or twice a day to a black screen. It doesn't matter what I am doing (surfing the web in Safari, listening to music in iTunes, etc). If there is music playing, I will get a constant stutter of audio in addition to the black screen.
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The last panic log was from 05/15/2014:
Thu May 15 14:19:02 2014
panic(cpu 3 caller 0xffffff800bfe3321): "mount_common(): mount of udf filesystem failed with 6, but vnode list is not empty."@/SourceCache/xnu/xnu-2422.100.13/bsd/vfs/vfs_syscalls.c:975
Backtrace (CPU 3), Frame : Return Address
0xffffff81f8f13700 : 0xffffff800be22fa9
0xffffff81f8f13780 : 0xffffff800bfe3321
0xffffff81f8f13ae0 : 0xffffff800bfe3e6d
0xffffff81f8f13f10 : 0xffffff800bfe3a09
0xffffff81f8f13f50 : 0xffffff800c240653
0xffffff81f8f13fb0 : 0xffffff800bef3c56
BSD process name corresponding to current thread: mount_udf
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:     0x000000000bc00000
Kernel text base: 0xffffff800be00000
System model name: iMac12,2 (Mac-942B59F58194171B)
System uptime in nanoseconds: 11136484219679
last loaded kext at 7539731810245: com.apple.filesystems.udf          2.5 (addr 0xffffff7f8e64e000, size 262144)
last unloaded kext at 7793663834795: com.apple.driver.AppleIntelMCEReporter          104 (addr 0xffffff7f8e646000, size 32768)
loaded kexts:
com.cyberic.SmoothMouse          9
com.driver.LogJoystick          2.0
com.logitech.driver.LogiGamingMouseFilter          1
com.apple.filesystems.udf          2.5
com.apple.filesystems.afpfs          11.1
com.apple.nke.asp-tcp          8.0.1
com.apple.driver.AppleHWSensor          1.9.5d0
com.apple.driver.AudioAUUC          1.60
com.apple.driver.AppleBluetoothMultitouch          80.14
com.apple.driver.AGPM          100.14.15
com.apple.filesystems.autofs          3.0
com.apple.driver.AppleMikeyHIDDriver          124
com.apple.driver.AppleMikeyDriver          2.6.1f2
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.iokit.IOBluetoothSerialManager          4.2.4f1
com.apple.driver.AppleUpstreamUserClient          3.5.13
com.apple.driver.AppleHDA          2.6.1f2
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AppleHWAccess          1
com.apple.driver.AppleIntelHD3000Graphics          8.2.4
com.apple.kext.AMDFramebuffer          1.2.2
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport          4.2.4f1
com.apple.driver.AppleBacklight          170.3.5
com.apple.driver.AppleSMCLMU          2.0.4d1
com.apple.driver.AppleSMCPDRC          1.0.0
com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
com.apple.driver.AppleMCCSControl          1.1.12
com.apple.driver.AppleLPC          1.7.0
com.apple.driver.AppleIntelSNBGraphicsFB          8.2.4
com.apple.AMDRadeonX3000          1.2.2
com.apple.kext.AMD6000Controller          1.2.2
com.apple.driver.AppleThunderboltIP          1.1.2
com.apple.iokit.SCSITaskUserClient          3.6.6
com.apple.driver.AppleUSBCardReader          3.4.1
com.apple.driver.AppleIRController          325.7
com.apple.driver.Oxford_Semi          3.4.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          35
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCIBlockStorage          2.5.1
com.apple.driver.AppleUSBHub          666.4.0
com.apple.iokit.AppleBCM5701Ethernet          3.8.1b2
com.apple.driver.AppleFWOHCI          5.0.2
com.apple.driver.AirPort.Atheros40          700.74.5
com.apple.driver.AppleAHCIPort          3.0.0
com.apple.driver.AppleUSBEHCI          660.4.0
com.apple.driver.AppleACPIButtons          2.0
com.apple.driver.AppleRTC          2.0
com.apple.driver.AppleHPET          1.8
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.security.SecureRemotePassword          1.0
com.apple.driver.AppleBluetoothHIDKeyboard          170.15
com.apple.driver.AppleHIDKeyboard          170.15
com.apple.driver.IOBluetoothHIDDriver          4.2.4f1
com.apple.driver.AppleMultitouchDriver          245.13
com.apple.kext.triggers          1.0
com.apple.iokit.IOSurface          91.1
com.apple.iokit.IOSerialFamily          10.0.7
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.iokit.IOBluetoothFamily          4.2.4f1
com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.2.4f1
com.apple.driver.AppleBacklightExpert          1.0.4
com.apple.iokit.IONDRVSupport          2.4.1
com.apple.driver.AppleHDAController          2.6.1f2
com.apple.iokit.IOHDAFamily          2.6.1f2
com.apple.driver.IOPlatformPluginLegacy          1.0.0
com.apple.driver.AppleSMBusController          1.0.11d1
com.apple.driver.IOPlatformPluginFamily          5.7.0d11
com.apple.iokit.IOAcceleratorFamily          98.20
com.apple.kext.AMDSupport          1.2.2
com.apple.AppleGraphicsDeviceControl          3.5.26
com.apple.iokit.IOGraphicsFamily          2.4.1
com.apple.iokit.IOFireWireIP          2.2.6
com.apple.driver.AppleSMBusPCI          1.0.12d1
com.apple.driver.AppleSMC          3.1.8
com.apple.driver.AppleThunderboltEDMSink          2.1.3
com.apple.iokit.IOAHCISerialATAPI          2.6.1
com.apple.driver.AppleThunderboltDPInAdapter          3.1.7
com.apple.driver.AppleThunderboltDPOutAdapter          3.1.7
com.apple.driver.AppleThunderboltDPAdapterFamily          3.1.7
com.apple.driver.AppleThunderboltPCIDownAdapter          1.4.5
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.IOSCSIBlockCommandsDevice          3.6.6
com.apple.iokit.IOUSBMassStorageClass          3.6.0
com.apple.iokit.IOUSBHIDDriver          660.4.0
com.apple.iokit.IOFireWireSerialBusProtocolTransport          2.5.1
com.apple.iokit.IOSCSIArchitectureModelFamily          3.6.6
com.apple.iokit.IOFireWireSBP2          4.2.6
com.apple.driver.AppleUSBMergeNub          650.4.0
com.apple.driver.AppleUSBComposite          656.4.1
com.apple.driver.AppleThunderboltNHI          2.0.1
com.apple.iokit.IOThunderboltFamily          3.2.7
com.apple.iokit.IOUSBUserClient          660.4.2
com.apple.iokit.IOEthernetAVBController          1.0.3b4
com.apple.driver.mDNSOffloadUserClient          1.0.1b5
com.apple.iokit.IOFireWireFamily          4.5.5
com.apple.iokit.IO80211Family          630.35
com.apple.iokit.IONetworkingFamily          3.2
com.apple.iokit.IOAHCIFamily          2.6.5
com.apple.iokit.IOUSBFamily          677.4.0
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          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.pthread          1
com.apple.kec.corecrypto          1.0
System Profile:
Model: iMac12,2, BootROM IM121.0047.B1F, 4 processors, Intel Core i7, 3.4 GHz, 16 GB, SMC 1.72f1
Graphics: AMD Radeon HD 6970M, AMD Radeon HD 6970M, PCIe, 1024 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x802C, 0x31364A53463531323634485A2D3147344431
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x802C, 0x31364A53463531323634485A2D3147344431
Memory Module: BANK 0/DIMM1, 4 GB, DDR3, 1333 MHz, 0x859B, 0x435435313236344243313333392E43313646
Memory Module: BANK 1/DIMM1, 4 GB, DDR3, 1333 MHz, 0x859B, 0x435435313236344243313333392E43313646
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x9A), Atheros 9380: 4.0.74.0-P2P
Bluetooth: Version 4.2.4f1 13674, 3 services, 23 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: ST31000528AS, 1 TB
Serial ATA Device: HL-DT-STDVDRW GA32N
USB Device: FaceTime HD Camera (Built-in)
USB Device: Hub
USB Device: External
USB Device: BRCM2046 Hub
USB Device: Bluetooth USB Host Controller
USB Device: Hub
USB Device: G9x Laser Mouse
USB Device: IR Receiver
USB Device: Internal Memory Card Reader
FireWire Device: d2 quadra (button), LaCie, Up to 800 Mb/sec
Thunderbolt Bus: iMac, Apple Inc., 22.1
There was a crash posted on 05/29/2014:
Process:         Nike+ Connect Helper Daemon [1146]
Path:            /Applications/Nike+ Connect.app/Contents/MacOS/Nike+ Connect Helper Daemon
Identifier:      Nike+ Connect Helper Daemon
Version:         ???
Code Type:       X86 (Native)
Parent Process: Nike+ Connect Helper Daemon [1142]
Responsible:     Nike+ Connect Helper Daemon [1142]
User ID:         501
Date/Time:       2014-05-29 13:51:14.144 -0700
OS Version:      Mac OS X 10.9.3 (13D65)
Report Version: 11
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x000000000000010c
VM Regions Near 0x10c:
--> __PAGEZERO             0000000000000000-0000000000001000 [    4K] ---/--- SM=NUL /Applications/Nike+ Connect.app/Contents/MacOS/Nike+ Connect Helper Daemon
    __TEXT                 0000000000001000-0000000000003000 [    8K] r-x/rwx SM=COW /Applications/Nike+ Connect.app/Contents/MacOS/Nike+ Connect Helper Daemon
Application Specific Information:
*** multi-threaded process forked ***
crashed on child side of fork pre-exec
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libdispatch.dylib                       0x948e8444 _dispatch_wakeup + 113
1   libdispatch.dylib                       0x948e8b08 _dispatch_resume_slow + 24
2   libcache.dylib                          0x96f00467 _cache_init_globals + 211
3   libsystem_platform.dylib                0x9a566a86 _os_alloc + 90
4   libsystem_platform.dylib                0x9a5669b0 _os_once + 143
5   libsystem_platform.dylib                0x9a566a23 _os_alloc_once + 56
6   libcache.dylib                          0x96efdf22 cache_create + 574
7   com.apple.CoreFoundation                0x9abe8352 -[NSCache init] + 130
8   libobjc.A.dylib                         0x92bed47c +[NSObject new] + 52
9   com.apple.CoreFoundation                0x9ac0b995 __26+[__NSTimeZone initialize]_block_invoke + 37
10 libdispatch.dylib                       0x948e7319 dispatch_once_f + 150
11 libdispatch.dylib                       0x948e81bd dispatch_once + 31
12 com.apple.CoreFoundation                0x9ac0b965 +[__NSTimeZone initialize] + 53
13 libobjc.A.dylib                         0x92bd7eb6 _class_initialize + 526
14 libobjc.A.dylib                         0x92bddde1 lookUpImpOrForward + 109
15 libobjc.A.dylib                         0x92bd7ca3 _class_lookupMethodAndLoadCache3 + 55
16 libobjc.A.dylib                         0x92bd74e1 objc_msgSend + 81
17 com.apple.CoreFoundation                0x9ac10aa0 -[__NSPlaceholderTimeZone initWithName:] + 48
18 com.apple.CoreFoundation                0x9ac10a4b +[NSTimeZone timeZoneWithName:] + 59
19 com.apple.CoreFoundation                0x9ac10891 +[NSTimeZone systemTimeZone] + 849
20 com.apple.CoreFoundation                0x9ac10427 +[NSTimeZone defaultTimeZone] + 231
21 com.apple.CoreFoundation                0x9ac1031d CFTimeZoneCopyDefault + 45
22 com.apple.CoreFoundation                0x9ac101b0 CFCalendarCreateWithIdentifier + 544
23 com.apple.CoreFoundation                0x9ac275fc __CFLogCString + 124
24 com.apple.CoreFoundation                0x9ac2753e _CFLogvEx + 270
25 com.apple.Foundation                    0x9a7dc5ca NSLogv + 137
26 com.apple.Foundation                    0x9a7dc537 NSLog + 27
27 Nike+ Connect Helper Daemon             0x00002497 0x1000 + 5271
28 Nike+ Connect Helper Daemon             0x00002870 0x1000 + 6256
29 Nike+ Connect Helper Daemon             0x0000293c 0x1000 + 6460
30 Nike+ Connect Helper Daemon             0x00002a8d 0x1000 + 6797
31 Nike+ Connect Helper Daemon             0x0000242d 0x1000 + 5165
Thread 0 crashed with X86 Thread State (32-bit):
eax: 0x00000100 ebx: 0x0052a41c ecx: 0x0052a404 edx: 0x00000002
edi: 0x0052a400 esi: 0xa0899500 ebp: 0xbffff238 esp: 0xbffff220
   ss: 0x00000023 efl: 0x00010206 eip: 0x948e8444   cs: 0x0000001b
   ds: 0x00000023   es: 0x00000023   fs: 0x00000000   gs: 0x0000000f
cr2: 0x0000010c
Logical CPU:     4
Error Code:      0x00000006
Trap Number:     14
Binary Images:
    0x1000 -     0x2fff +Nike+ Connect Helper Daemon (???) <4C53F440-37C7-3352-B96E-789BE2BB27EA> /Applications/Nike+ Connect.app/Contents/MacOS/Nike+ Connect Helper Daemon
    0x6000 -    0x6eff3 +libc++.dylib (1) <EFDC98D8-79DC-3E1E-A9E9-9360BEA8164C> /Applications/Nike+ Connect.app/Contents/MacOS/libc++.dylib
0x115000 -   0x13afff +libc++abi.dylib (0) <7B081EAD-646B-385E-AE9C-F5E56B4AF862> /Applications/Nike+ Connect.app/Contents/MacOS/libc++abi.dylib
0x1c6000 -   0x1d0ff7 com.apple.iokit.IOUSBLib (656.4.0 - 656.4.0) <45C969D5-3477-3785-9948-C892527E8B19> /System/Library/Extensions/IOUSBFamily.kext/Contents/PlugIns/IOUSBLib.bundle/Co ntents/MacOS/IOUSBLib
0x8fe0f000 - 0x8fe41417 dyld (239.4) <FF5ED937-CC28-3FEF-BCAF-750B1CDBAE36> /usr/lib/dyld
0x900c4000 - 0x900e8ff3 libc++abi.dylib (49.1) <43A04ACF-97A5-35ED-B454-6B5C0CF0F99D> /usr/lib/libc++abi.dylib
0x900f3000 - 0x900fcfff com.apple.DiskArbitration (2.6 - 2.6) <92F7575A-AA20-34D9-BB26-2CC8C3CCAFEB> /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration
0x90eaf000 - 0x90eb0fff libsystem_blocks.dylib (63) <2AC67D5E-ECD4-3644-A53C-9684F9B7AA33> /usr/lib/system/libsystem_blocks.dylib
0x90f18000 - 0x90f68ff7 libcorecrypto.dylib (161.1) <135FD99E-2211-3DF4-825C-C9F816107F0C> /usr/lib/system/libcorecrypto.dylib
0x90f69000 - 0x90f70ffb libsystem_pthread.dylib (53.1.4) <8B1B7B84-1B5D-32A8-AC0D-1E689E5C8A4C> /usr/lib/system/libsystem_pthread.dylib
0x90f71000 - 0x90fc6fff libc++.1.dylib (120) <10C0A136-64F9-3CC2-9420-013247032120> /usr/lib/libc++.1.dylib
0x910b2000 - 0x910b4fff libsystem_configuration.dylib (596.15) <E49AAD29-35C2-3EE2-AF4D-59514C4B478F> /usr/lib/system/libsystem_configuration.dylib
0x91561000 - 0x91569fff libcopyfile.dylib (103) <1B1484BD-08B6-3BA9-94CA-A7C24B610EB3> /usr/lib/system/libcopyfile.dylib
0x916db000 - 0x916f3ff7 libsystem_malloc.dylib (23.10.1) <CB52555E-0F5B-31E3-A42A-FD4F930E2192> /usr/lib/system/libsystem_malloc.dylib
0x916fc000 - 0x9172dffa libsystem_m.dylib (3047.16) <28E614E8-7802-3E84-960A-AD4721EF10F7> /usr/lib/system/libsystem_m.dylib
0x91a28000 - 0x91a52fff libxslt.1.dylib (13) <249D54AB-1D82-38FE-ABEC-0D575450C73B> /usr/lib/libxslt.1.dylib
0x91b2b000 - 0x91c8dffb com.apple.CFNetwork (673.4 - 673.4) <3B6BDE2F-BFA3-3B7E-BC53-7B6B75EB12D3> /System/Library/Frameworks/CFNetwork.framework/Versions/A/CFNetwork
0x92417000 - 0x9241bff7 libmacho.dylib (845) <D8E93E59-1F80-3413-B9CF-78B848F6E873> /usr/lib/system/libmacho.dylib
0x9244f000 - 0x9244ffff libkeymgr.dylib (28) <1B097DEA-011E-3B1C-86D5-6C7FAD5C765A> /usr/lib/system/libkeymgr.dylib
0x92568000 - 0x925dbfff com.apple.SearchKit (1.4.0 - 1.4.0) <6F607AB6-7553-37BA-BEC5-98FD7C27FAD7> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchK it.framework/Versions/A/SearchKit
0x92a19000 - 0x92a90ffb com.apple.framework.IOKit (2.0.1 - 907.100.13) <D1308EE0-96AA-3442-A27B-264F58AE12B4> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x92bd3000 - 0x92d7b4af libobjc.A.dylib (551.1) <31CBE178-E972-30D1-ADC6-4B8345CAE326> /usr/lib/libobjc.A.dylib
0x939a9000 - 0x939b1fff libsystem_dnssd.dylib (522.90.2) <A73663C9-CE65-3FF3-B41B-686728BBFB00> /usr/lib/system/libsystem_dnssd.dylib
0x94164000 - 0x94465ffb com.apple.CoreServices.CarbonCore (1077.17 - 1077.17) <02C72D54-E3D3-32B0-A081-E85A7038489D> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonC ore.framework/Versions/A/CarbonCore
0x948e6000 - 0x948feffd libdispatch.dylib (339.92.1) <7E7A88BF-74B3-363B-B534-6F757DF2DDE3> /usr/lib/system/libdispatch.dylib
0x94959000 - 0x94984ff7 libsystem_network.dylib (241.3) <71EBA489-386D-3608-ADE6-CB50EBD1AB1B> /usr/lib/system/libsystem_network.dylib
0x94985000 - 0x94986fff libremovefile.dylib (33) <ED35EA79-EB06-3B84-A6D4-B1A9D6B8648D> /usr/lib/system/libremovefile.dylib
0x94adc000 - 0x94af4ff7 com.apple.CFOpenDirectory (10.9 - 173.90.1) <184471C6-C810-3346-B7C7-D86E695D0FA1> /System/Library/Frameworks/OpenDirectory.framework/Versions/A/Frameworks/CFOpen Directory.framework/Versions/A/CFOpenDirectory
0x954a7000 - 0x954cffff libsystem_info.dylib (449.1.3) <BB68E8CC-422F-3121-8C86-D0F766FB696D> /usr/lib/system/libsystem_info.dylib
0x95cc1000 - 0x95cc2ffd libunc.dylib (28) <22A126A1-DCFB-3BE5-A66B-C973F0A5D839> /usr/lib/system/libunc.dylib
0x95cc5000 - 0x95cc9ffc libpam.2.dylib (20) <50623D44-795F-3E28-AA85-23E0E7E2AE0E> /usr/lib/libpam.2.dylib
0x95dd1000 - 0x95ddfff7 libz.1.dylib (53) <858B4D9F-D87E-3D81-B07A-DF9632BD185F> /usr/lib/libz.1.dylib
0x95f89000 - 0x96064ff7 com.apple.LaunchServices (572.26 - 572.26) <5915A9AC-7928-30B1-9329-94048ADE81D9> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchS ervices.framework/Versions/A/LaunchServices
0x96b48000 - 0x96b4afff libquarantine.dylib (71) <EE3B510E-1AEC-3171-8A1A-D6A5A42CF35C> /usr/lib/system/libquarantine.dylib
0x96bab000 - 0x96bb1ffb libunwind.dylib (35.3) <099D1A6F-A1F0-3D05-BF1C-0A7BB32D39C2> /usr/lib/system/libunwind.dylib
0x96bb2000 - 0x96bb9ff2 com.apple.NetFS (6.0 - 4.0) <915AA303-C02B-3B0C-8208-D8AAA4350DB4> /System/Library/Frameworks/NetFS.framework/Versions/A/NetFS
0x96bdf000 - 0x96c77ff7 com.apple.Metadata (10.7.0 - 800.28) <D8C2153B-6D0F-3B75-97C7-742BDCA430FC> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadat a.framework/Versions/A/Metadata
0x96d15000 - 0x96d1dfff liblaunch.dylib (842.90.1) <B259692D-D60B-3BCE-9E03-32F457CB5046> /usr/lib/system/liblaunch.dylib
0x96e9e000 - 0x96efcffd com.apple.AE (665.5 - 665.5) <54F2F247-160C-3A22-A6E3-5D49655A67AB> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/AE.fram ework/Versions/A/AE
0x96efd000 - 0x96f01ffa libcache.dylib (62) <9730D7F2-D226-3F30-8D26-BF598CB781F6> /usr/lib/system/libcache.dylib
0x96f05000 - 0x96f17fff libsystem_asl.dylib (217.1.4) <51EB17C9-9F5B-39F3-B6CD-8EF238B05B89> /usr/lib/system/libsystem_asl.dylib
0x96f18000 - 0x96f1bff9 com.apple.TCC (1.0 - 1) <A5FCF7AA-3F56-3A19-9DF1-661F1F02F79D> /System/Library/PrivateFrameworks/TCC.framework/Versions/A/TCC
0x9701a000 - 0x97023fff libsystem_notify.dylib (121) <623269F5-1518-3035-A916-8AF83C972154> /usr/lib/system/libsystem_notify.dylib
0x97024000 - 0x97110ff7 libxml2.2.dylib (26) <32040145-6FD6-3AD2-B98B-39F73BF9AC47> /usr/lib/libxml2.2.dylib
0x974d2000 - 0x974eefff libCRFSuite.dylib (34) <FFF76EBA-DF35-3A5F-857F-3F4B1C9F4C77> /usr/lib/libCRFSuite.dylib
0x97707000 - 0x97708ffa libsystem_sandbox.dylib (278.11) <1A6276FC-9204-3A59-8024-2D572BA9D2F2> /usr/lib/system/libsystem_sandbox.dylib
0x97d46000 - 0x97d58fff libbsm.0.dylib (33) <1BE92DB5-0D2F-3BB5-BCC6-8A71EF2A3450> /usr/lib/libbsm.0.dylib
0x97d59000 - 0x97d7dff7 libxpc.dylib (300.90.2) <5ACBBE2C-74EB-3E88-BCBF-C573095318A5> /usr/lib/system/libxpc.dylib
0x9866e000 - 0x9875effb libiconv.2.dylib (41) <848FEBA7-2E3E-3ECB-BD59-007F32468787> /usr/lib/libiconv.2.dylib
0x98c88000 - 0x98c93ffb libcommonCrypto.dylib (60049) <F8E60C43-22EE-3E0B-9546-3365056901F1> /usr/lib/system/libcommonCrypto.dylib
0x98c94000 - 0x98da6ffc libsqlite3.dylib (158) <B3DB0FED-FE4C-314D-8329-CF7708C8AAF4> /usr/lib/libsqlite3.dylib
0x98dfe000 - 0x98e09ff6 com.apple.NetAuth (5.0 - 5.0) <3B2E9615-EE12-38FC-BDCF-09529FF9464B> /System/Library/PrivateFrameworks/NetAuth.framework/Versions/A/NetAuth
0x98e0b000 - 0x98e74ffa com.apple.datadetectorscore (5.0 - 354.4) <9B7B72AA-1DA4-327B-A714-5C710F3A33A0> /System/Library/PrivateFrameworks/DataDetectorsCore.framework/Versions/A/DataDe tectorsCore
0x990dc000 - 0x990e6fff com.apple.bsd.ServiceManagement (2.0 - 2.0) <B84F3916-236A-347B-9C1F-3DE571496737> /System/Library/Frameworks/ServiceManagement.framework/Versions/A/ServiceManage ment
0x990e7000 - 0x990eaff7 libdyld.dylib (239.4) <B2BD2222-2A51-39B7-BCC5-B8A4F36F900A> /usr/lib/system/libdyld.dylib
0x991b8000 - 0x991e4ff7 com.apple.DictionaryServices (1.2 - 208) <33873336-BECD-3F62-A315-C45F24C1818C> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Diction aryServices.framework/Versions/A/DictionaryServices
0x991e5000 - 0x99277ff9 libsystem_c.dylib (997.90.3) <80D21D3D-1031-314C-B1F0-0B35B977CEFB> /usr/lib/system/libsystem_c.dylib
0x9a18e000 - 0x9a18ffff liblangid.dylib (117) <F18F76C6-7E4B-34AD-AE81-C1C031BF2F7D> /usr/lib/liblangid.dylib
0x9a1d1000 - 0x9a1d2fff libDiagnosticMessagesClient.dylib (100) <B936B1D4-90BB-395D-8EA9-E1237608E7D0> /usr/lib/libDiagnosticMessagesClient.dylib
0x9a1d3000 - 0x9a1d3ffd libOpenScriptingUtil.dylib (157) <4D06E8ED-D312-34EA-A448-DFF45ADC3CE5> /usr/lib/libOpenScriptingUtil.dylib
0x9a563000 - 0x9a568ff3 libsystem_platform.dylib (24.90.1) <0613F163-9A7A-3908-B30B-AC1627503933> /usr/lib/system/libsystem_platform.dylib
0x9a569000 - 0x9a577fff libxar.1.dylib (202) <B73748D4-F830-3C71-98B3-7A3ABF5136FD> /usr/lib/libxar.1.dylib
0x9a6ef000 - 0x9a71fff7 com.apple.CoreServicesInternal (184.9 - 184.9) <999FEDEC-7657-3F32-A9AE-F29E0BE0AAF5> /System/Library/PrivateFrameworks/CoreServicesInternal.framework/Versions/A/Cor eServicesInternal
0x9a77f000 - 0x9a77ffff com.apple.CoreServices (59 - 59) <06747539-5035-3307-8645-9BC4E7F89023> /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
0x9a780000 - 0x9a78cffc libkxld.dylib (2422.100.13) <5C97CA53-F237-3ECC-9725-E71DDFEC661E> /usr/lib/system/libkxld.dylib
0x9a794000 - 0x9aabfffe com.apple.Foundation (6.9 - 1056.13) <C33A8984-7E97-36BE-B842-EE4FE35F53EA> /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
0x9aac0000 - 0x9aafdff7 libauto.dylib (185.5) <CD008E66-4A0C-35F5-8D72-80D76A716A03> /usr/lib/libauto.dylib
0x9ab09000 - 0x9ab0eff6 libcompiler_rt.dylib (35) <9924DF2E-D80B-3A21-920D-544A4597203F> /usr/lib/system/libcompiler_rt.dylib
0x9ab12000 - 0x9ab7bfff com.apple.SystemConfiguration (1.13.1 - 1.13.1) <3AD9C90B-40A9-312B-B479-3AB178A96EA1> /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfi guration
0x9ab7c000 - 0x9ad7efff com.apple.CoreFoundation (6.9 - 855.16) <6283B27F-3C46-365F-932C-1A7102D8A3CF> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
0x9b6b1000 - 0x9b731ff7 com.apple.CoreServices.OSServices (600.4 - 600.4) <382BE89A-9F37-3316-9AB8-DDEA691A80D1> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServi ces.framework/Versions/A/OSServices
0x9b732000 - 0x9b9a1ff6 com.apple.security (7.0 - 55471.14.4) <4C9E60A9-6861-3AFF-BEB8-637771FEC78B> /System/Library/Frameworks/Security.framework/Versions/A/Security
0x9b9a2000 - 0x9b9bfff4 libsystem_kernel.dylib (2422.100.13) <C09FD945-4F48-3322-AB4B-7D0243667657> /usr/lib/system/libsystem_kernel.dylib
0x9ba53000 - 0x9ba54fff libSystem.B.dylib (1197.1.1) <789CF4BE-5A0B-310E-9515-E515EA033D03> /usr/lib/libSystem.B.dylib
0x9be01000 - 0x9bfc7ffb libicucore.A.dylib (511.32) <9DC4CADF-6F5C-3D6F-A0FE-D8BC868915F2> /usr/lib/libicucore.A.dylib
0x9bfc8000 - 0x9bfd4ffc libbz2.1.0.dylib (29) <3CEF1E92-BA42-3F8A-8E8D-9E1F7658E5C7> /usr/lib/libbz2.1.0.dylib
External Modification Summary:
Calls made by other processes targeting this process:
    task_for_pid: 0
    thread_create: 0
    thread_set_state: 0
Calls made by this process:
    task_for_pid: 0
    thread_create: 0
    thread_set_state: 0
Calls made by all processes on this machine:
    task_for_pid: 2836
    thread_create: 0
    thread_set_state: 0
VM Region Summary:
ReadOnly portion of Libraries: Total=71.9M resident=36.6M(51%) swapped_out_or_unallocated=35.2M(49%)
Writable regions: Total=47.5M written=152K(0%) resident=460K(1%) swapped_out=0K(0%) unallocated=47.0M(99%)
REGION TYPE                      VIRTUAL
===========                      =======
Kernel Alloc Once                     4K
MALLOC                             39.2M
MALLOC (admin)                       32K
Stack                              64.1M
VM_ALLOCATE                          24K
__DATA                             1516K
__LINKEDIT                         44.2M
__OBJC                              372K
__PAGEZERO                            4K
__TEXT                             27.6M
__UNICODE                           544K
mapped file                       211.4M
shared memory                         4K
===========                      =======
TOTAL                             389.0M
System Profile:
Model: iMac12,2, BootROM IM121.0047.B1F, 4 processors, Intel Core i7, 3.4 GHz, 16 GB, SMC 1.72f1
Graphics: AMD Radeon HD 6970M, AMD Radeon HD 6970M, PCIe, 1024 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x802C, 0x31364A53463531323634485A2D3147344431
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x802C, 0x31364A53463531323634485A2D3147344431
Memory Module: BANK 0/DIMM1, 4 GB, DDR3, 1333 MHz, 0x859B, 0x435435313236344243313333392E43313646
Memory Module: BANK 1/DIMM1, 4 GB, DDR3, 1333 MHz, 0x859B, 0x435435313236344243313333392E43313646
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x9A), Atheros 9380: 4.0.74.0-P2P
Bluetooth: Version 4.2.4f1 13674, 3 services, 23 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: ST31000528AS, 1 TB
Serial ATA Device: HL-DT-STDVDRW GA32N
USB Device: Hub
USB Device: G9x Laser Mouse
USB Device: BRCM2046 Hub
USB Device: Bluetooth USB Host Controller
USB Device: FaceTime HD Camera (Built-in)
USB Device: Hub
USB Device: IR Receiver
USB Device: Internal Memory Card Reader
Thunderbolt Bus: iMac, Apple Inc., 22.1

Problem installing windows 7 on imac 27" i7 mid 2011

I myself have a 27" i5 mid 2010 model but a friend of mine recently got a 27'' i7 he wanted to instal windows 7 because he also uses other software aswell
Specs of his iMac 27'' :
Thunderbolt
HD Facetime Camera
4gig of memory
2gig videocard
1T HDD
OsX 10.7 Lion completly updated
Oke here is my and his story/problem:
I start bootcamp download the software i need too install bootcamp on windows 7 Ultimate.
After that i create a partition 200 gig for windows 7 Ultimate. i click on the button to start the install.
After the restart i press enter and the windows setup starts after some clicks i format the bootcamp partition as explained by apple in there support.
I click on install windows start to install after the first boot it wil compleet the install normally this wil install the drivers and you get normal resolution ect,
this doesn't happend. It keeps the big chunky resolution. so that tells me that the drivers aren't installed.
After windows compleets the installation it restarts does a video test, and brings us to the screen where you need to fill in your name and password then windows asked a few things and the world time ect, and when you click on done or compleet. Normally you will get something like this (Please wait a moment windows is preparing your desktop) instead of that the mac restarts, (but the windows dvd is still in the superdrive because you cant get it out) it asked me if i want to press a button to instal windows no i wont, so i wait it counts down so it wil start up windows. now here is the problem it doesnt startup to windows it hangs and does nothing.
I my self have a mid 2010 27'' i5 model and had a blank screen everytime i tryed to instal windows 7 ultimate, i learned that there was a download available where you can create a MBRFAT USB stick where you copy a .xml file and a driver map so windows got the right drivers for my model so it would install succefully,here a link http://support.apple.com/kb/TS3173 where i found it.
Is there something like this available for the
iMac 27'' model mid 2011
with a 2gig videocard
Thunderbolt
HD facetime camera
4gig memory
10.7 Lion
Any help or links would be nice

Oke we are still fighting with this after finished installing windows 7 hangs problem!
My question now is can this problem as mentiond above be caused by plugged in USB devices he also uses a world of warcraft mouse and a logitech keyboard G19 version that can be used with world of warcraft.
He also he got a Sitecom powered USB hub 10 port, and uses 2 WD elements external USB HDD 2Terra connected to the hub that uses 1 port on the mac the other 2 on the mac are the keyboard and mouse that he uses for world of warecraft and there is 1 left on the mac that he uses for his iphone or usb stick.
We are also looking for the new drivers for the i7 mid/late 2011 models so that have a AMD Radeon HD 6970M with 2 GB GDDR5 installed so windows can be installed correctly?
Thanks for any help on this matter..

Frustratingly, since I upgraded to Yosemite 10.10, I too am having the worst problems with WiFi dropping out. I've never had this problem before on my iMac 27-inch mid 2011 model. Turning WiFi off and then back on again sometimes works. Help please.

Frustratingly, since I upgraded to Yosemite 10.10, I too am having the worst problems with WiFi dropping out. I've never had this problem before on my iMac 27-inch mid 2011 model. Turning WiFi off and then back on again sometimes works. Help please. I've already tried a lot of your suggested fixes, but without success. Why hasn't Apple Fixed this?

Please test after taking each of the following steps that you haven't already tried. Stop when the problem is resolved. Back up all data before making any changes.
Step 1
Take the applicable steps in this support article. The Wireless Diagnostics program generates a large file of information about your system, which would be used by Apple Engineering in case of a support incident. Don't post the contents here.
Step 2
Disconnect all USB 3 devices. If you don't know which are USB 3, disconnect all USB devices except keyboard and mouse.
Step 3
If you're not using a wireless keyboard or trackpad, disable Bluetooth by selecting Turn Bluetooth Off from the menu with the Bluetooth icon. If you don't have that menu, open the Bluetooth preference pane in System Preferences and check the box marked Show Bluetooth in menu bar. Test. If you find that Wi-Fi works better with Bluetooth disabled, you should use the 5 GHz Wi-Fi band. Your router may not support it; in that case, you need a new router.
Step 4
Open the Energy Saver pane in System Preferences and unlock the settings, if necessary. Select the Power Adapter tab, if there is one. Uncheck the box marked
Wake for Wi-Fi network access
if it's checked.
Step 5
Open the Network pane in System Preferences and make a note of your settings in the Wi-Fi service. It may be helpful to take screenshots of the various tabs in the preference pane. If the preference pane is locked, unlock it by clicking the padlock icon and entering your administrator password. Delete Wi-Fi from the service list on the left by selecting it and clicking the minus-sign button at the bottom. Then recreate the service by clicking the plus-sign button and following the prompts.
Step 6
In the Wi-Fi settings, select
Advanced... ▹ TCP/IP ▹ Configure IPv6: Link-local
Click OK and then Apply.
Step 7
Reset the System Management Controller.
Step 8
Reset the PRAM.
Step 9
Launch the Keychain Access application. Search for and delete all AirPort network password items that refer to the network. Make a note of the password first.
Step 10
Make a "Genius" appointment at an Apple Store, or go to another authorized service center.

IMac 21.5" - 'Mid 2011' - Lion - Option key problem

Hello, I just bought an IMac 21.5" - 'Mid 2011' - Lion. It's wireless.
I'd like to start up the computer using an external HD. I know that I should hit the option key to present the choices.
This does not work from rebooting, it only functions when I turn off the machine, wait 20 seconds & hit the 'turn on' button again.
Also, I've noticed that if I go into the Apple Help menu & type 'Pram' nothing comes up. In an older MBP, also using Lion, I get a list of choices. I would also like to know if this normal behavior ?
Thanks for any feedback.

I wasn't talking about zapping the pram; your solution to the 1st part of the problem was perfect - thanks again.
I was referring to the Apple Help system. I would like to know if it changed.
In my MBP when I type 'pram' in the help area, I get a list of topics. In the new IMac, nothing comes up !

Can i Play Sony Playstation 4 on my iMac, 27-inch, Mid 2011[Thunderbolt Port Only] ??

I Use a iMac (27-inch, Mid 2011). Which has only Thunderbolt ports. Is there any way i can Connect The Sony Playstation 4 to my iMac and play games ? Just to let you know the Playstation has a HDMI out which has to be connected to my iMac's thunderbolt port to use it as a display.
Have been searching everywhere for a solution but unable to find it.
Desperately waiting for your replies.
Thanks
Sandeep

thunderbolt to hdmi cable

Bootcamp (iMac 27-inch, Mid 2011) Windows 7 (32-bit) or Windows 8.1 via iso file?

Hey peeps,
I'm trying to bootcamp my iMac (27-inch, Mid 2011) from an iso file downloaded via Microsoft (DreamSparks).
The only versions of Windows DreamSparks offers are Windows 7 (32-Bit) and Windows 8.1, both of these are .iso files.
I've tried putting both versions onto both a USB and Rewritable DVD, but my iMac doesn't detect the install disk anywhere when running bootcamp.
Any idea how this could be fixed?
I read somewhere that my iMac doesn't support Windows 8+ and will only support 64-bit versions on Windows, any clarification on these two areas would be great.
Thanks for your time!
Charkizard

Your Dreamspark account should have an option for both Win 7 Pro 32 and 64 bit. If not, you can download the 64 bit ISO at http://msft.digitalrivercontent.net/win/X17-24281.iso The serial numbers provided by Dreamspark will work on both the 32 and 64 bit.
Once you have downloaded the ISO on your Mac you use Boot Camp Assistant to create a USB install disk that has both the installer and the bootcamp drivers. You will need an 8GB flash drive to do this.
Open up Boot camp assistant, there is an option to create a Windows install disk. When you use this option, it *** for the location of the Windows ISO file, once you select the ISO that you want to use just follow the prompts. Boot Camp Assistant will download the latest Boot camp Drivers, and then will create a USB drive with the Windows installer that includes all of the Apple Specific drivers needed by your iMac.
Just note that this process can take over an hour to finish. But once it does, you can then use Boot Camp Assistant to partition your iMacs drive and then install Windows using the Flash drive that you created.

Serial number? I have a MacBook Air (mid 2011). When I go into about this Mac, all it says for serial number is systemserial

Serial number? I have a MacBook Air (mid 2011). When I go into about this Mac or any of the other ways to look up the serial #,all it says for serial number is systemserial#. Is there a way to fix this?

About This Mac will show something like this:
Click on More Info... leads to some thing like this:
Serial Number is the second line from the bottom.

My Mac Mini (Mid 2011) doesn't connect to Time Capsule in 5GHz Network. This WiFi Network don't appear in the WiFi list. What's Wrong?

My Mac Mini (Mid 2011) doesn't connect to Time Capsule in 5GHz Network. This WiFi Network don't appear in the WiFi list. What's Wrong?

Oh yes, & 5 GHz doesn't do walls very well at all.
GHz and Network Range
The higher the frequency of a wireless signal, the shorter its range. Thus, 2.4 GHz networks cover a substantially larger range than 5 GHz wireless networks. In particular, the higher frequency wireless signals of 5 GHz networks do not penetrate solid objects nearly as well as do 2.4 GHz signals, limiting their reach inside homes.
http://compnetworking.about.com/od/wirelessfaqs/f/5ghz-gear.htm

The display brightness can't be adjusted in Windows 7 under Bootcamp 4, iMac 21.5 (mid 2011) with ATI Radion 6770M..

The display brightness of my iMac 21.5 (mid 2011, with ATI Radeon 6770M) can't be adjusted in Windows 7 installed under Bootcamp 4. I tried moving the brightness glider either with apple keyboard hotkeys (on-screen glider), or within Windows control panel brightness control (within the power option), but the brightness remains the same. I've had all software (Lion, bootcamp, windows 7) up to date. Please help. Thanks.

I posted a similar case to yours a month ago and it seems we're in a minority on the problem. What I have learned over this month was that Bootcamp drivers version 4 (Designed around OS Lion) was a BIG part of my issue with the ATI video. The new IMacs seems to require a customized by Apple Verion 3.2 or 3.3 to operate normally. Sadly, it's not as easy as just backing off version 4 and going onto 3.2 and getting the video slider back. You need to reload Windows and avoid Bootcamp 4.0 as it seems a piece of V4 gets stuck in Windows. I'm putting this suggestion to practise this week, guess I'll have more to say later.
Pete

TS4088 Intermittent black screens on my iMac 21.5 Mid 2011 os x 10.8.2, Help!

I get Intermittent black screens on my iMac 21.5 Mid 2011 os x 10.8.2, Help!

Try moving the com.apple.addressBook.plist to your Desktop and start Contacts.
To get there, hold down the Option key and select Library from the Go menu in Finder. Then, navigate to Preferences folder.

IMac 12,2 (Mid 2011) Random Crashes running Tiger 10.8.2

I just purchased this iMac a couple month ago and the new models just came out, go figure, heh.
iMac: 12,2 - Mid 2011
Current Mac OSX Tiger Version: 10.8.2
I keep gettting random crashed since I have this iMac. Very unpleasant and as usual at the worst timing.
Latest crash report:
Wed Nov 28 02:17:08 2012
panic(cpu 1 caller 0xffffff80210b7bd5): Kernel trap at 0xffffff80221626f6, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0xffffff80221626f6, CR3: 0x00000000243d3000, CR4: 0x00000000000606e0
RAX: 0xd05d8057cff100d0, RBX: 0xffffff804bda9004, RCX: 0x0000000000000000, RDX: 0xffffff8264bcbc50
RSP: 0xffffff8264bcbba8, RBP: 0xffffff8264bcbc40, RSI: 0xffffff825af48500, RDI: 0xffffff804bda9004
R8: 0x0000000000000004, R9: 0x00000000000000d9, R10: 0xffffff80216bdc21, R11: 0x0000000000000201
R12: 0xffffff825af48500, R13: 0x0000000000000000, R14: 0xffffff825af48500, R15: 0xffffff7fa222176b
RFL: 0x0000000000010246, RIP: 0xffffff80221626f6, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0xffffff80221626f6, Error code: 0x0000000000000010, Fault CPU: 0x1
Backtrace (CPU 1), Frame : Return Address
0xffffff8264bcb840 : 0xffffff802101d626
0xffffff8264bcb8b0 : 0xffffff80210b7bd5
0xffffff8264bcba80 : 0xffffff80210ce4ed
0xffffff8264bcbaa0 : 0xffffff80221626f6
0xffffff8264bcbc40 : 0xffffff7fa216def9
0xffffff8264bcbd10 : 0xffffff7fa21ccf36
0xffffff8264bcbd50 : 0xffffff7fa21391da
0xffffff8264bcbe60 : 0xffffff7fa21383bc
0xffffff8264bcbe80 : 0xffffff7fa2199ba3
0xffffff8264bcbec0 : 0xffffff7fa21455c2
0xffffff8264bcbef0 : 0xffffff80214472a8
0xffffff8264bcbf30 : 0xffffff8021445daa
0xffffff8264bcbf80 : 0xffffff8021445ed9
0xffffff8264bcbfb0 : 0xffffff80210b26b7
      Kernel Extensions in backtrace:
         com.apple.driver.AirPort.Atheros40(600.70.23)[2E6077DF-D532-357F-8107-F23BC2C10 F2F]@0xffffff7fa2137000->0xffffff7fa227ffff
            dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffff ff7fa168d000
            dependency: com.apple.iokit.IO80211Family(500.15)[4282DF5A-86B9-3213-B9B1-675FAD842A94]@0xf fffff7fa1e9c000
            dependency: com.apple.iokit.IONetworkingFamily(3.0)[28575328-A798-34B3-BD84-D708138EBD17]@0 xffffff7fa188e000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
12C60
Kernel version:
Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64
Kernel UUID: 69A5853F-375A-3EF4-9247-478FD0247333
Kernel slide:     0x0000000020e00000
Kernel text base: 0xffffff8021000000
System model name: iMac12,2
System uptime in nanoseconds: 143756078953235
last loaded kext at 116677078733750: com.apple.driver.AppleUSBCDC     4.1.22 (addr 0xffffff7fa3eaa000, size 16384)
last unloaded kext at 116737136859109: com.apple.driver.AppleUSBCDC     4.1.22 (addr 0xffffff7fa3eaa000, size 12288)
loaded kexts:
org.virtualbox.kext.VBoxNetAdp     4.1.18
org.virtualbox.kext.VBoxNetFlt     4.1.18
org.virtualbox.kext.VBoxUSB     4.1.18
org.virtualbox.kext.VBoxDrv     4.1.18
com.parallels.kext.prl_vnic     7.0 15104.778994
com.parallels.kext.prl_netbridge     7.0 15104.778994
com.parallels.kext.prl_hid_hook     7.0 15104.778994
com.parallels.kext.prl_hypervisor     7.0 15104.778994
com.parallels.kext.prl_usb_connect     7.0 15104.778994
at.obdev.nke.LittleSnitch     3883
com.apple.driver.AppleIntelProfile     97
com.apple.filesystems.smbfs     1.8
com.apple.driver.AudioAUUC     1.60
com.apple.driver.AppleHWSensor     1.9.5d0
com.apple.driver.AGPM     100.12.69
com.apple.iokit.IOBluetoothSerialManager     4.0.9f33
com.apple.driver.AppleMikeyHIDDriver     122
com.apple.driver.AppleHDA     2.3.1f2
com.apple.iokit.IOUserEthernet     1.0.0d1
com.apple.driver.AppleIntelHD3000Graphics     8.0.0
com.apple.driver.AppleMikeyDriver     2.3.1f2
com.apple.Dont_Steal_Mac_OS_X     7.0.0
com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport     4.0.9f33
com.apple.driver.AppleSMCPDRC     1.0.0
com.apple.driver.AppleSMCLMU     2.0.2d0
com.apple.driver.ApplePolicyControl     3.2.11
com.apple.driver.ACPI_SMC_PlatformPlugin     1.0.0
com.apple.driver.AppleLPC     1.6.0
com.apple.driver.AppleBacklight     170.2.3
com.apple.filesystems.autofs     3.0
com.apple.driver.AppleIntelSNBGraphicsFB     8.0.0
com.apple.driver.AppleUpstreamUserClient     3.5.10
com.apple.driver.AppleMCCSControl     1.0.33
com.apple.kext.AMDFramebuffer     8.0.0
com.apple.AMDRadeonAccelerator     1.0.0
com.apple.iokit.SCSITaskUserClient     3.5.1
com.apple.driver.AppleUSBCardReader     3.1.0
com.apple.driver.AppleIRController     320.15
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless     1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib     1.0.0d1
com.apple.BootCache     34
com.apple.driver.XsanFilter     404
com.apple.iokit.IOAHCIBlockStorage     2.2.2
com.apple.driver.AppleUSBHub     5.2.5
com.apple.driver.AppleFWOHCI     4.9.6
com.apple.iokit.AppleBCM5701Ethernet     3.2.5b3
com.apple.driver.AirPort.Atheros40     600.70.23
com.apple.driver.AppleAHCIPort     2.4.1
com.apple.driver.AppleUSBEHCI     5.4.0
com.apple.driver.AppleEFINVRAM     1.6.1
com.apple.driver.AppleACPIButtons     1.6
com.apple.driver.AppleRTC     1.5
com.apple.driver.AppleHPET     1.7
com.apple.driver.AppleSMBIOS     1.9
com.apple.driver.AppleACPIEC     1.6
com.apple.driver.AppleAPIC     1.6
com.apple.driver.AppleIntelCPUPowerManagementClient     196.0.0
com.apple.nke.applicationfirewall     4.0.39
com.apple.security.quarantine     2
com.apple.driver.AppleIntelCPUPowerManagement     196.0.0
com.apple.driver.AppleProfileTimestampAction     97
com.apple.driver.AppleProfileThreadInfoAction     97
com.apple.driver.AppleProfileRegisterStateAction     97
com.apple.driver.AppleProfileReadCounterAction     97
com.apple.driver.AppleProfileKEventAction     97
com.apple.driver.AppleProfileCallstackAction     97
com.apple.iokit.AppleProfileFamily     97
com.apple.driver.AppleBluetoothHIDKeyboard     165.5
com.apple.driver.IOBluetoothHIDDriver     4.0.9f33
com.apple.driver.AppleHIDKeyboard     165.5
com.apple.driver.AppleUSBAudio     2.9.0f6
com.apple.iokit.IOSerialFamily     10.0.6
com.apple.driver.DspFuncLib     2.3.1f2
com.apple.iokit.IOAudioFamily     1.8.9fc10
com.apple.kext.OSvKernDSPLib     1.6
com.apple.iokit.IOSurface     86.0.3
com.apple.iokit.IOBluetoothFamily     4.0.9f33
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport     4.0.9f33
com.apple.driver.AppleHDAController     2.3.1f2
com.apple.iokit.IOHDAFamily     2.3.1f2
com.apple.iokit.IOFireWireIP     2.2.5
com.apple.driver.AppleSMBusPCI     1.0.10d0
com.apple.driver.AppleSMC     3.1.4d2
com.apple.driver.IOPlatformPluginLegacy     1.0.0
com.apple.driver.AppleGraphicsControl     3.2.11
com.apple.driver.IOPlatformPluginFamily     5.2.0d16
com.apple.driver.AppleThunderboltEDMSink     1.1.8
com.apple.driver.AppleThunderboltEDMSource     1.1.8
com.apple.driver.AppleBacklightExpert     1.0.4
com.apple.kext.triggers     1.0
com.apple.driver.AppleSMBusController     1.0.10d0
com.apple.iokit.IOAcceleratorFamily     19.0.26
com.apple.iokit.IONDRVSupport     2.3.5
com.apple.kext.AMD6000Controller     8.0.0
com.apple.kext.AMDSupport     8.0.0
com.apple.iokit.IOGraphicsFamily     2.3.5
com.apple.driver.AppleThunderboltDPOutAdapter     1.8.5
com.apple.driver.AppleThunderboltDPInAdapter     1.8.5
com.apple.driver.AppleThunderboltDPAdapterFamily     1.8.5
com.apple.driver.AppleThunderboltPCIDownAdapter     1.2.5
com.apple.iokit.IOSCSIMultimediaCommandsDevice     3.5.1
com.apple.iokit.IOBDStorageFamily     1.7
com.apple.iokit.IODVDStorageFamily     1.7.1
com.apple.iokit.IOCDStorageFamily     1.7.1
com.apple.iokit.IOSCSIBlockCommandsDevice     3.5.1
com.apple.iokit.IOUSBMassStorageClass     3.5.0
com.apple.iokit.IOAHCISerialATAPI     2.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily     3.5.1
com.apple.iokit.IOUSBHIDDriver     5.2.5
com.apple.driver.AppleUSBMergeNub     5.2.5
com.apple.driver.AppleUSBComposite     5.2.5
com.apple.iokit.IOUSBUserClient     5.2.5
com.apple.driver.AppleThunderboltNHI     1.6.0
com.apple.iokit.IOThunderboltFamily     2.1.1
com.apple.iokit.IOFireWireFamily     4.5.5
com.apple.iokit.IOEthernetAVBController     1.0.2b1
com.apple.iokit.IO80211Family     500.15
com.apple.iokit.IONetworkingFamily     3.0
com.apple.iokit.IOAHCIFamily     2.2.1
com.apple.iokit.IOUSBFamily     5.4.0
com.apple.driver.AppleEFIRuntime     1.6.1
com.apple.iokit.IOHIDFamily     1.8.0
com.apple.iokit.IOSMBusFamily     1.1
com.apple.security.sandbox     220
com.apple.kext.AppleMatch     1.0.0d1
com.apple.security.TMSafetyNet     7
com.apple.driver.DiskImages     344
com.apple.iokit.IOStorageFamily     1.8
com.apple.driver.AppleKeyStore     28.21
com.apple.driver.AppleACPIPlatform     1.6
com.apple.iokit.IOPCIFamily     2.7.2
com.apple.iokit.IOACPIFamily     1.4
com.apple.kec.corecrypto     1.0
Model: iMac12,2, BootROM IM121.0047.B1F, 4 processors, Intel Core i5, 2.7 GHz, 20 GB, SMC 1.72f2
Graphics: AMD Radeon HD 6770M, AMD Radeon HD 6770M, PCIe, 512 MB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1333 MHz, 0x8502, 0x505341333847313333333253000000000000
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1333 MHz, 0x8502, 0x505341333847313333333253000000000000
Memory Module: BANK 0/DIMM1, 2 GB, DDR3, 1333 MHz, 0x02FE, 0x45424A3230554638424353302D444A2D4620
Memory Module: BANK 1/DIMM1, 2 GB, DDR3, 1333 MHz, 0x02FE, 0x45424A3230554638424353302D444A2D4620
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x9A), Atheros 9380: 4.0.70.23-P2P
Bluetooth: Version 4.0.9f33 10885, 2 service, 18 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: ST31000528AS, 1 TB
Serial ATA Device: OPTIARC DVD RW AD-5690H
USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x850b, 0xfa200000 / 3
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2
USB Device: Logitech Camera, 0x046d (Logitech Inc.), 0x09a6, 0xfa120000 / 5
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 4
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0xfa111000 / 6
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
USB Device: Razer Tron Mouse, 0x1532, 0x0022, 0xfd130000 / 5
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 4
USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfd110000 / 3

BDAqua wrote:
One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), ...
I used the shift key to boot and had it running for 4 hours and the gray progress bar never got past about 20%. That said I never got into a working safe mode.
I did however boot from the recovery drive and did the fix permissions and fix drive options. Drive check said drive looking good. Permission check showed about 5 permission issues which it was able to fix.
Restarting the system just takes ages and the harddrive keeps crunches away (not a clicking which would be an easy indicator for a bad hard drive). At 20GB Ram this is an odd behavior.
BDAqua wrote:
Check the System Preferences>Other Row, for 3rd party Pref Panes.
Removing crap as I go. Removed everything but Flash Player and Wacom Tablet.
BDAqua wrote:
1. /private/var/run/StartupItems
2. /Library/StartupItems
3. /System/Library/StartupItems
4. /System/Library/LaunchDaemons
5. /Library/LaunchDaemons
1. negative,
2. Shows VirtualBox, removing it right now - removed
3. negative
4. cleaned of unwanted files
5. cleaned of unwanted files
Kind of reminds me dealing with a Windows PC before I swapped to apple. Just wasting time. Time wasted: 5 hours. Is like a second job, unpaid.
Thanks for the help now I have to see if this has any positive effect. Will keep you posted.
Thanks,
PixelGrinch

HT1338 Today when connecting my MB Pro Retina Display to my 27" LED Cinema Display instead of mirroring (which worked fine in the past) both screens are black with a large arrow cursor. I'm unable to resolve this. Anyone have a similar experience?

Today when connecting my MB Pro Retina Display to my 27" LED Cinema Display instead of mirroring (which worked fine in the past) both screens are black with a large arrow cursor. I'm unable to resolve this. Anyone have a similar experience?

I think what may be your main issue here is that the 2011
server has the Intel integrated HD3000 and is is struggling
to run both a Thuderbolt display and a second monitor.
When looking at specs for Thunderbolt Display, it is stated
that the 2011 Mini Server can only support one. Adding that
Dell monitor with 1920x1200 display may just be too many
pixels for the HD3000 to handle.
You may want to try setting the Dell to a lower resolution
to test the theory to see what happens. It is however,
possible that any additional monitor when using the Thunderbolt
display may over tax the HD3000 graphics.
FWIW personally, I have been running a 2011 Mini Server w/ Thunderbolt
display for almost a year now without any issues. However, I don't
use a second monitor.

Imac 21.5" mid 2011 performance when connecting a 27" 2560x1440 external display

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